/* ============================================
   SYANGLO - Elegant Mental Health Monitoring App
   Mobile-First Responsive Design
   ============================================ */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - SynaWatch Light Purple Theme */
    --primary-color: #7C3AED; /* Vivid Purple */
    --primary-dark: #6D28D9;
    --primary-light: #A78BFA;
    --secondary-color: #DDD6FE;
    --accent-color: #EC4899; /* Pink accent */
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --success-color: #10B981;

    /* Background Colors - Light Mode */
    --bg-primary: #F5F3FF; /* Very light lavender */
    --bg-secondary: #EDE9FE;
    --bg-gradient: linear-gradient(180deg, #F5F3FF 0%, #EDE9FE 100%);
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-glass: rgba(255, 255, 255, 0.7);

    /* Text Colors - Dark for light background */
    --text-primary: #1E1B4B;   /* Deep indigo */
    --text-secondary: #4B5563;
    --text-light: #9CA3AF;
    --text-white: #FFFFFF;

    /* Borders */
    --border-color: rgba(124, 58, 237, 0.15);
    --glass-border: 1px solid rgba(124, 58, 237, 0.15);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #7C3AED 0%, #A78BFA 100%);
    --gradient-secondary: linear-gradient(135deg, #A78BFA 0%, #DDD6FE 100%);
    --gradient-accent: linear-gradient(135deg, #EC4899 0%, #A78BFA 100%);
    --gradient-glow: radial-gradient(circle at 50% -20%, rgba(124, 58, 237, 0.15), rgba(255, 255, 255, 0));

    /* Shadows - Softer for light mode */
    --shadow-sm: 0 1px 3px 0 rgba(124, 58, 237, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(124, 58, 237, 0.12), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(124, 58, 237, 0.12), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(124, 58, 237, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glass: 0 8px 32px 0 rgba(124, 58, 237, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

body {
    font-family: var(--font-family);
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-bottom: 75px; /* Space for bottom nav */
    min-height: 100vh;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

/* Hide scrollbars but keep scrolling */
html, body {
    scrollbar-width: none;
    background-color: var(--bg-primary); /* Light lavender */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
    display: none;
}

/* ============================================
   Top Header
   ============================================ */
.top-header {
    background: rgba(255, 255, 255, 0.9);
    border-bottom: var(--glass-border);
    position: fixed !important; 
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 10001;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    color: var(--primary-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--spacing-xs);
}


.time-display {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
    min-width: 45px;
}

.header-title {
    flex: 1;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.logo-container .header-logo-small {
    flex-shrink: 0;
}

.logo-container-column {
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.header-logo {
    height: 55px;
    width: auto;
    object-fit: contain;
    margin-bottom: -12px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header-logo-small {
    height: 65px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.logo-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

/* Hide text on very small screens, show only logo */
@media (max-width: 360px) {
    .logo-text h1,
    .logo-text .subtitle {
        display: none;
    }
    
    .logo-container {
        justify-content: center;
    }
    
    .header-logo {
        height: 24px;
    }
    
    .header-logo-small {
        height: 28px;
    }
}

.header-title h1 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
    line-height: 1.2;
}

.header-title .subtitle {
    font-size: var(--font-size-xs);
    color: var(--primary-color);
    font-weight: 400;
    margin-top: var(--spacing-xs);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 45px;
    justify-content: flex-end;
}

.header-actions i {
    font-size: var(--font-size-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-actions i:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transform: scale(1.1);
}

/* BLE Signal Indicator */
.status-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.status-indicator i {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.status-indicator i.connected {
    color: #10b981 !important;
    -webkit-text-fill-color: #10b981 !important;
    background: none !important;
    background-clip: unset !important;
    animation: pulse-green 2s ease-in-out infinite;
}

@keyframes pulse-green {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.back-button {
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.back-button:hover {
    background: var(--bg-secondary);
}

.back-button i {
    font-size: var(--font-size-lg);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    padding-top: calc(var(--spacing-lg) + 80px); /* Add top padding for fixed header */
    padding-bottom: calc(var(--spacing-lg) + 80px); /* Add bottom padding for fixed bottom-nav */
}

/* ============================================
   Biometric Card
   ============================================ */
.biometric-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-xl); /* More rounded */
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-glass);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    border: var(--glass-border);
}

.biometric-item {
    text-align: center;
}

.biometric-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.biometric-item:nth-child(2) .biometric-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
}

.biometric-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.biometric-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.biometric-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.status-normal {
    background: #e5f3f9;
    color: #1e3a5f;
}

.status-excellent {
    background: #d1e8f0;
    color: #1e3a5f;
}

.status-low {
    background: #fee2e2;
    color: #991b1b;
}

.status-high {
    background: #fef3c7;
    color: #92400e;
}

/* ============================================
   Trends Section
   ============================================ */
.trends-section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.chart-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: var(--glass-border);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.chart-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.chart-header i {
    color: var(--primary-color);
    font-size: var(--font-size-lg);
}

.chart-container {
    height: 200px;
    position: relative;
}

.chart-container canvas {
    width: 100%;
    height: 100%;
}

/* ============================================
   Metrics Grid
   ============================================ */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border: var(--glass-border);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.metric-card:hover::before {
    opacity: 1;
}

.metric-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    flex-shrink: 0;
}

.metric-icon.gsr {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.3);
}

.metric-icon.temp {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.metric-icon.activity {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.metric-icon.sleep {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

.metric-info {
    flex: 1;
}

.metric-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.metric-trend {
    font-size: var(--font-size-xs);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.metric-trend i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-trend.up {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-trend.up i {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-trend.stable {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-trend.stable i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Health Indicators
   ============================================ */
.health-indicators {
    margin-bottom: var(--spacing-lg);
}

.indicators-grid {
    display: grid;
    gap: var(--spacing-md);
}

.indicator-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border: var(--glass-border);
    position: relative;
    overflow: hidden;
}

.indicator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.indicator-card.anxiety::before {
    background: linear-gradient(90deg, #ff6b6b 0%, #ffa500 100%);
}

.indicator-card.stress::before {
    background: linear-gradient(90deg, #4ecdc4 0%, #44a08d 100%);
}

.indicator-card.mood::before {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

.indicator-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.15);
}

.indicator-card:hover::before {
    opacity: 1;
}

.indicator-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    color: white;
    flex-shrink: 0;
}

.indicator-card.anxiety .indicator-icon {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.indicator-card.stress .indicator-icon {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    box-shadow: 0 4px 15px rgba(78, 205, 196, 0.3);
}

.indicator-card.mood .indicator-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.indicator-content {
    flex: 1;
}

.indicator-content h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.indicator-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(124, 58, 237, 0.12);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.indicator-card.anxiety .progress-fill {
    background: linear-gradient(90deg, #ff6b6b 0%, #ffa500 100%);
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.3);
}

.indicator-card.stress .progress-fill {
    background: linear-gradient(90deg, #4ecdc4 0%, #44a08d 100%);
    box-shadow: 0 2px 8px rgba(78, 205, 196, 0.3);
}

.indicator-card.mood .progress-fill {
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* ============================================
   Profile Page Styles
   ============================================ */
.profile-content {
    padding-top: var(--spacing-xl);
}

.profile-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.profile-avatar {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.avatar-circle {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-4xl);
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.edit-avatar-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: 3px solid white;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast);
}

.edit-avatar-btn:hover {
    transform: scale(1.1);
}

.profile-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.profile-email {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.profile-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.settings-menu {
    margin-bottom: var(--spacing-xl);
}

.menu-section {
    margin-bottom: var(--spacing-xl);
}

.menu-section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
    padding: 0 var(--spacing-sm);
}

.menu-item {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.menu-item:hover {
    background: var(--bg-secondary);
    transform: translateX(4px);
}

.menu-item-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-item-left i {
    font-size: var(--font-size-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 24px;
    text-align: center;
}

.menu-item-left span {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
}

.menu-item i.fa-chevron-right {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* ============================================
   Bottom Navigation
   ============================================ */
.bottom-nav {
    position: fixed !important; /* Force fixed position - don't allow override */
    bottom: 0;
    left: 0;
    right: 0;
    background: #f4fafd;
    border-top: 1px solid var(--border-color);
    border-radius: 50px;
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 10001;
    margin-bottom: 10px;
    padding: var(--spacing-xs) 0;
    padding-bottom: calc(var(--spacing-xs) + env(safe-area-inset-bottom));
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 var(--spacing-xs);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    color: #667eea;
    transition: color var(--transition-fast);
    flex: 1;
    padding: var(--spacing-xs);
    border-radius: 50px;
}

.nav-item:hover {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
}

.nav-item:hover i,
.nav-item:hover span {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-item.active {
    background: linear-gradient(135deg, #667eea20 0%, #764ba220 100%);
}

.nav-item.active i,
.nav-item.active span {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-item i {
    font-size: var(--font-size-xl);
}

.nav-item span {
    font-size: var(--font-size-xs);
    font-weight: 500;
}

/* ============================================
   Mobile Optimizations (max-width: 767px)
   ============================================ */
@media (max-width: 767px) {
    /* Reduce padding on mobile */
    .main-content {
        padding: var(--spacing-sm) var(--spacing-md);
        padding-top: calc(var(--spacing-sm) + 70px); /* Add top padding for fixed header */
        padding-bottom: calc(var(--spacing-sm) + 80px); /* Add bottom padding for fixed bottom-nav */
    }
    
    /* Better spacing between sections */
    section {
        margin-bottom: var(--spacing-md);
    }
    
    /* Header adjustments */
    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .logo-container {
        gap: var(--spacing-xs);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .logo-container-column {
        gap: var(--spacing-xs);
    }
    
    .header-logo {
        height: 24px;
    }
    
    .header-logo-small {
        height: 28px;
    }
    
    .logo-text {
        align-items: center;
    }
    
    .header-title h1 {
        font-size: var(--font-size-lg);
    }
    
    .header-title .subtitle {
        font-size: 10px;
    }
    
    /* Biometric card mobile */
    .biometric-card {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .biometric-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-sm);
    }
    
    .biometric-value {
        font-size: var(--font-size-3xl);
    }
    
    .biometric-label {
        font-size: 11px;
    }
    
    .metric-explanation {
        font-size: 10px;
    }
    
    .metric-info small {
        font-size: 10px;
    }
    
    /* Welcome card mobile */
    .welcome-card {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .welcome-icon {
        font-size: var(--font-size-2xl);
    }
    
    .welcome-content h2 {
        font-size: var(--font-size-xl);
    }
    
    .welcome-content p {
        font-size: var(--font-size-sm);
    }
    
    /* Help card mobile */
    .help-card {
        padding: var(--spacing-md);
    }
    
    .help-header h3 {
        font-size: var(--font-size-lg);
    }
    
    /* Section titles mobile */
    .section-title {
        font-size: var(--font-size-lg);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
    
    /* Chart cards mobile */
    .chart-card {
        padding: var(--spacing-md);
    }
    
    .chart-container {
        height: 180px;
    }
    
    .chart-header h3 {
        font-size: var(--font-size-base);
    }
    
    .chart-explanation {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 11px;
    }
    
    .chart-explanation-box {
        padding: var(--spacing-sm);
        font-size: 11px;
    }
    
    /* Metrics grid mobile */
    .metrics-grid {
        gap: var(--spacing-sm);
    }
    
    .metric-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .metric-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .metric-value {
        font-size: var(--font-size-xl);
    }
    
    .metric-label {
        font-size: 11px;
    }
    
    .metric-unit {
        font-size: 10px;
    }
    
    /* Indicator cards mobile */
    .indicators-grid {
        gap: var(--spacing-sm);
    }
    
    .indicator-card {
        padding: var(--spacing-md);
        flex-direction: column;
        text-align: center;
    }
    
    .indicator-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
        margin: 0 auto var(--spacing-sm);
    }
    
    .indicator-content h3 {
        font-size: var(--font-size-base);
    }
    
    .indicator-value {
        font-size: var(--font-size-lg);
    }
    
    .indicator-description {
        font-size: 11px;
    }
    
    /* Summary cards mobile */
    .summary-cards {
        gap: var(--spacing-sm);
    }
    
    .summary-card {
        padding: var(--spacing-md);
        flex-direction: column;
        text-align: center;
    }
    
    .summary-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
        margin: 0 auto var(--spacing-sm);
    }
    
    .summary-value {
        font-size: var(--font-size-2xl);
        color: var(--text-white);
    }
    
    .summary-label {
        font-size: 11px;
        color: var(--text-white);
    }
    
    .summary-change {
        font-size: 10px;
    }
    
    .summary-description {
        font-size: 10px;
    }
    
    /* Monitoring grid mobile */
    .monitoring-grid {
        gap: var(--spacing-sm);
    }
    
    .monitor-card {
        padding: var(--spacing-md);
    }
    
    .monitor-value {
        font-size: var(--font-size-2xl);
    }
    
    .monitor-header {
        font-size: 11px;
        margin-bottom: var(--spacing-sm);
    }
    
    .monitor-unit {
        font-size: 10px;
    }
    
    .monitor-status {
        font-size: 10px;
        padding: 3px var(--spacing-xs);
    }
    
    .monitor-info {
        font-size: 9px;
    }
    
    .monitoring-info-box {
        padding: var(--spacing-sm);
        font-size: 11px;
    }
    
    /* Health score mobile */
    .health-score-card {
        padding: var(--spacing-lg);
    }
    
    .health-score-circle {
        width: 150px;
        height: 150px;
    }
    
    .score-value {
        font-size: var(--font-size-3xl);
    }
    
    .health-status {
        font-size: 11px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .health-score-explanation {
        padding: var(--spacing-sm);
        font-size: 11px;
    }
    
    /* Mental health indicators mobile */
    .mental-indicator-card {
        padding: var(--spacing-md);
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .mental-indicator-unified-card {
        padding: var(--spacing-md);
    }
    
    .unified-gauge-container {
        margin-bottom: var(--spacing-lg);
        padding: var(--spacing-xs);
    }
    
    .unified-gauge {
        width: 220px;
        height: 220px;
        margin: 0 auto;
        max-width: calc(100vw - 3rem);
    }
    
    .gauge-center-icon {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
    }
    
    .gauge-center-label {
        font-size: var(--font-size-xs);
        margin-top: 4px;
    }
    
    .indicator-legend {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-lg);
    }
    
    .legend-item {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
        align-items: center;
        flex-direction: row;
        width: 100%;
        color: #667eea;
    }
    
    .legend-color {
        width: 56px;
        height: 56px;
        flex-shrink: 0;
        border-radius: var(--radius-lg);
    }
    
    .legend-color i {
        font-size: var(--font-size-xl);
        
    }
    
    .legend-content {
        flex: 1;
        min-width: 0;
        width: 100%;
    }
    
    .legend-title {
        font-size: var(--font-size-base);
        font-weight: 700;
        margin-bottom: var(--spacing-xs);
    }
    
    .legend-title span {
        display: block;
    }
    
    .legend-value {
        font-size: var(--font-size-sm);
        font-weight: 600;
        margin-bottom: var(--spacing-xs);
        color: var(--text-primary);
    }
    
    .legend-desc {
        font-size: var(--font-size-xs);
        line-height: 1.5;
        color: var(--text-secondary);
    }
    
    .indicator-visual {
        width: 80px;
        margin: 0 auto;
    }
    
    .indicator-gauge {
        width: 80px;
        height: 80px;
    }
    
    .indicator-gauge::before {
        width: 55px;
        height: 55px;
    }
    
    /* Activity summary mobile */
    .activity-item {
        padding: var(--spacing-sm) 0;
    }
    
    .activity-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .activity-value {
        font-size: var(--font-size-base);
    }
    
    /* Sleep analysis mobile */
    .sleep-card {
        padding: var(--spacing-md);
    }
    
    .sleep-time,
    .quality-score {
        font-size: var(--font-size-xl);
    }
    
    .sleep-stages {
        gap: var(--spacing-xs);
    }
    
    .sleep-stage {
        padding: var(--spacing-xs);
    }
    
    .stage-value {
        font-size: var(--font-size-base);
    }
    
    .stage-desc {
        font-size: 9px;
    }
    
    /* Recommendations mobile */
    .recommendation-item {
        padding: var(--spacing-md);
    }
    
    .rec-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .rec-content h3 {
        font-size: var(--font-size-sm);
    }
    
    .rec-content p {
        font-size: 11px;
    }
    
    /* Insights mobile */
    .insights-grid {
        gap: var(--spacing-sm);
    }
    
    .insight-card {
        padding: var(--spacing-md);
    }
    
    .insight-icon {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-lg);
    }
    
    .insight-content h3 {
        font-size: var(--font-size-sm);
    }
    
    .insight-content p {
        font-size: 11px;
    }
    
    /* Metric detail cards mobile */
    .metric-detail-card {
        padding: var(--spacing-md);
    }
    
    .metric-detail-title {
        font-size: var(--font-size-base);
    }
    
    .metric-detail-value {
        font-size: var(--font-size-lg);
    }
    
    .metric-detail-chart {
        height: 150px;
    }
    
    .metric-explanation-text {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 11px;
    }
    
    .metric-detail-stats {
        gap: var(--spacing-xs);
        padding-top: var(--spacing-sm);
    }
    
    .detail-stat {
        padding: var(--spacing-xs);
    }
    
    .stat-value {
        font-size: var(--font-size-base);
    }
    
    .stat-label {
        font-size: 10px;
    }
    
    /* Comparison chart mobile */
    .comparison-card {
        padding: var(--spacing-md);
    }
    
    .comparison-card canvas {
        height: 200px;
    }
    
    /* Chart legend mobile - horizontal layout */
    .chart-legend {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        gap: var(--spacing-sm) !important;
        font-size: var(--font-size-xs);
        justify-content: center !important;
        align-items: center !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: var(--spacing-xs) 0 !important;
        width: 100% !important;
    }
    
    .chart-legend .legend-item {
        display: inline-flex !important;
        flex-direction: row !important;
        flex-shrink: 0 !important;
        white-space: nowrap !important;
        font-size: var(--font-size-xs);
        width: auto !important;
        min-width: auto !important;
        max-width: none !important;
        padding: var(--spacing-xs) var(--spacing-sm) !important;
        margin: 0 !important;
        background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
        border: 1px solid var(--border-color) !important;
        border-radius: var(--radius-md) !important;
    }
    
    .chart-legend .legend-color {
        flex-shrink: 0 !important;
        width: 12px !important;
        height: 12px !important;
        display: inline-block !important;
    }
    
    /* Bottom navigation mobile */
    .nav-item {
        padding: var(--spacing-xs) 4px;
    }
    
    .nav-item i {
        font-size: var(--font-size-lg);
    }
    
    .nav-item span {
        font-size: 10px;
    }
    
    /* Help tooltip mobile */
    .tooltip {
        max-width: 200px;
        font-size: 11px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    /* Section header with help mobile */
    .section-header-with-help {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }
    
    .help-icon {
        font-size: var(--font-size-base);
    }
    
    /* Chart title with help mobile */
    .chart-title-with-help {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .chart-help {
        font-size: 12px;
    }
    
    /* Metric label with help mobile */
    .metric-label-with-help {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .metric-help-icon {
        font-size: 10px;
    }
    
    /* Indicator title with help mobile */
    .indicator-title-with-help {
        flex-wrap: wrap;
        gap: 4px;
        justify-content: center;
    }
    
    .indicator-help-icon {
        font-size: 10px;
    }
    
    /* Monitor header help mobile */
    .monitor-header {
        flex-wrap: wrap;
        position: relative;
        padding-bottom: var(--spacing-xs);
    }
    
    .monitor-header .monitor-help {
        position: absolute;
        top: 0;
        right: 0;
    }
    
    /* Ensure text doesn't overflow */
    .biometric-label,
    .metric-label,
    .section-title,
    h1, h2, h3 {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    /* Better spacing for cards */
    .chart-card,
    .metric-detail-card,
    .insight-card,
    .recommendation-item {
        margin-bottom: var(--spacing-sm);
    }
    
    /* Tighter spacing for sections */
    .trends-section,
    .metrics-section,
    .health-indicators,
    .insights-section,
    .comparison-section {
        margin-bottom: var(--spacing-md);
    }
    
    /* Prevent text from being too small */
    .section-header {
        margin-bottom: var(--spacing-sm);
    }
    
    /* Optimize legend for mobile */
    .chart-legend {
        margin-top: var(--spacing-xs);
        margin-bottom: var(--spacing-sm);
    }
    
    /* Better help card spacing */
    .help-content {
        gap: var(--spacing-sm);
    }
    
    .help-item {
        padding: var(--spacing-sm);
    }
    
    /* Fix overflow issues */
    .comparison-header,
    .chart-header,
    .metric-detail-header {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
    
    /* Profile adjustments */
    .profile-header {
        padding-top: var(--spacing-md);
    }
    
    .settings-menu {
        margin-bottom: var(--spacing-lg);
    }
    
    .menu-section {
        margin-bottom: var(--spacing-lg);
    }
    
    /* Profile page mobile */
    .profile-avatar .avatar-circle {
        width: 100px;
        height: 100px;
        font-size: var(--font-size-3xl);
    }
    
    .profile-name {
        font-size: var(--font-size-xl);
    }
    
    .profile-stats {
        gap: var(--spacing-xs);
    }
    
    .stat-item {
        padding: var(--spacing-sm);
    }
    
    .stat-value {
        font-size: var(--font-size-xl);
    }
    
    /* Menu items mobile */
    .menu-item {
        padding: var(--spacing-md);
    }
    
    .menu-item-left span {
        font-size: var(--font-size-sm);
    }
    
    /* Period selector mobile */
    .period-selector {
        font-size: 11px;
        padding: 6px var(--spacing-xs);
    }
}

/* ============================================
   Responsive Design - Desktop
   ============================================ */
@media (min-width: 768px) {
    .main-content {
        padding: var(--spacing-xl) var(--spacing-2xl);
    }
    
    .biometric-card {
        padding: var(--spacing-2xl);
    }
    
    .metrics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .indicators-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .chart-container {
        height: 250px;
    }
    
    .monitoring-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .insights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bottom-nav {
        position: fixed !important; /* Ensure it stays fixed on desktop */
        left: 50%;
        transform: translateX(-50%);
        max-width: 1200px;
        border-left: 1px solid var(--border-color);
        border-right: 1px solid var(--border-color);
    }
    
    body {
        padding-bottom: 0;
    }
    
    .main-content {
        padding-bottom: calc(100px + 80px); /* Add extra padding for fixed bottom-nav */
    }
}

@media (min-width: 1024px) {
    .header-content {
        padding: var(--spacing-lg) var(--spacing-2xl);
    }
    
    .main-content {
        padding: var(--spacing-2xl);
        padding-top: calc(var(--spacing-2xl) + 80px); /* Add top padding for fixed header */
        padding-bottom: calc(var(--spacing-2xl) + 80px); /* Add bottom padding for fixed bottom-nav */
    }
    
    .biometric-card {
        gap: var(--spacing-2xl);
    }
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.biometric-card,
.chart-card,
.metric-card,
.indicator-card {
    animation: fadeIn 0.5s ease-out;
}

/* ============================================
   Analytics Page Styles
   ============================================ */
.period-selector {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.period-selector:hover {
    border-color: var(--primary-color);
}

.period-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.period-indicator i {
    font-size: var(--font-size-base);
    color: white !important;
    -webkit-text-fill-color: white !important;
    background: none !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
}

.today-summary {
    padding: var(--spacing-lg);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.summary-item {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.summary-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.summary-item-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.summary-item-content {
    flex: 1;
}

.summary-item-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.summary-item-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.summary-loading,
.summary-empty,
.summary-error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.summary-empty {
    color: var(--text-light);
}

.summary-error {
    color: var(--danger-color);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.summary-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border: 1px solid var(--border-color);
}

.summary-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.summary-card.primary {
    background: var(--gradient-primary);
    color: white;
}

.summary-card.secondary {
    background: var(--gradient-secondary);
    color: white;
}

.summary-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.summary-card:hover .summary-icon {
    transform: scale(1.05) rotate(5deg);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

/* Primary card icon - Purple to Blue gradient */
.summary-card.primary .summary-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Secondary card icon - Pink to Red gradient */
.summary-card.secondary .summary-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.summary-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, transparent 50%);
    border-radius: var(--radius-lg);
}

.summary-icon i {
    color: white;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.2));
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.summary-content {
    flex: 1;
}

.summary-label {
    font-size: var(--font-size-xs);
    opacity: 0.9;
    margin-bottom: var(--spacing-xs);
}

.summary-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.summary-change {
    font-size: var(--font-size-xs);
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0.9;
}

.summary-change.positive {
    opacity: 1;
}

.summary-description {
    font-size: var(--font-size-xs);
    opacity: 0.85;
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.chart-section {
    margin-bottom: var(--spacing-lg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.chart-legend {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    flex-direction: row;
    align-items: center;
}

.chart-legend .legend-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    white-space: nowrap;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.chart-legend .legend-item:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.chart-legend .legend-color {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.chart-card.large {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chart-card.large .chart-legend {
    margin-bottom: 0;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    justify-content: center;
    display: flex;
}

.chart-card.large .chart-legend .legend-item {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-size: var(--font-size-xs) !important;
    color: var(--text-secondary) !important;
    white-space: nowrap !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
    border-radius: var(--radius-md) !important;
    border: 1px solid var(--border-color) !important;
    transition: all var(--transition-base) !important;
}

.chart-card.large .chart-legend .legend-item:hover {
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-sm) !important;
}

.chart-card.large .chart-legend .legend-color {
    width: 10px !important;
    height: 10px !important;
    border-radius: 50% !important;
    display: inline-block !important;
    flex-shrink: 0 !important;
}

.chart-card.large canvas {
    width: 100%;
    height: 300px;
}

.detailed-metrics {
    margin-bottom: var(--spacing-lg);
}

.metric-detail-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.metric-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.metric-detail-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.metric-detail-title i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-detail-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.metric-detail-chart {
    height: 200px;
    margin-bottom: var(--spacing-md);
}

.metric-detail-chart canvas {
    width: 100%;
    height: 100%;
}

.metric-detail-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.detail-stat {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.insights-section {
    margin-bottom: var(--spacing-lg);
}

.insights-grid {
    display: grid;
    gap: var(--spacing-md);
}

.insight-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-md);
    border-left: 4px solid;
    transition: transform var(--transition-base);
    border: 1px solid var(--border-color);
}

.insight-card:hover {
    transform: translateX(4px);
}

.insight-card.positive {
    border-left-color: var(--accent-color);
}

.insight-card.info {
    border-left-color: var(--primary-color);
}

.insight-card.warning {
    border-left-color: var(--warning-color);
}

.insight-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.insight-card.positive .insight-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.insight-card.info .insight-icon {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
}

.insight-card.warning .insight-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(245, 87, 108, 0.3);
}

.insight-content h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.insight-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.comparison-section {
    margin-bottom: var(--spacing-lg);
}

.comparison-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.comparison-header {
    margin-bottom: var(--spacing-md);
}

.comparison-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-card canvas {
    width: 100%;
    height: 250px;
}

/* ============================================
   Health Page Styles
   ============================================ */
.health-overview {
    margin-bottom: var(--spacing-xl);
}

.health-score-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.health-score-circle {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
}

.score-ring {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.score-ring-bg {
    fill: none;
    stroke: var(--bg-secondary);
    stroke-width: 8;
}

.score-ring-fill {
    fill: none;
    stroke: url(#scoreGradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease;
}

.score-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-value {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.score-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.health-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.health-status i {
    color: white;
}

.realtime-monitoring {
    margin-bottom: var(--spacing-xl);
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.monitor-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border: 1px solid var(--border-color);
}

.monitor-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.monitor-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.monitor-header .monitor-help {
    position: absolute;
    right: 0;
}

.monitor-header i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.monitor-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.monitor-unit {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.monitor-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.monitor-status.normal {
    background: #e5f3f9;
    color: #1e3a5f;
}

.monitor-status.excellent {
    background: #d1e8f0;
    color: #1e3a5f;
}

.monitor-trend {
    height: 40px;
    margin-top: var(--spacing-sm);
}

.monitor-trend canvas {
    width: 100%;
    height: 100%;
}

.monitor-help {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-xs);
    cursor: help;
}

.monitor-info {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    font-style: italic;
}

.monitoring-info-box {
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.monitoring-info-box p {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.monitoring-info-box i {
    color: var(--primary-color);
}

/* ============================================
   Recording Section
   ============================================ */
.recording-section {
    margin-bottom: var(--spacing-xl);
}

.recording-control-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.recording-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-md);
}

.recording-status-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #ff6b9d 0%, #ff8fab 100%);
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--font-size-lg);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
}

.recording-status-icon i.recording-active {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.95);
    }
}

.recording-status-text {
    flex: 1;
}

.recording-status-label {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.recording-time {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-variant-numeric: tabular-nums;
}

.recording-controls {
    display: flex;
    gap: var(--spacing-md);
}

.record-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.record-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.record-start {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.record-start:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.record-stop {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.record-stop:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
}

.recording-results {
    margin-top: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.recording-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.recording-results-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.close-results-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.close-results-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.recording-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.recording-summary-item {
    text-align: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-md);
}

.summary-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.summary-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.recording-charts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.recording-chart-card {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.recording-chart-card h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.recording-chart-card h4 i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.recording-chart-card canvas {
    width: 100%;
    height: 150px;
}

@media (max-width: 768px) {
    .recording-summary {
        grid-template-columns: 1fr;
    }
    
    .recording-charts {
        grid-template-columns: 1fr;
    }
    
    .recording-controls {
        flex-direction: column;
    }
}

.health-score-explanation {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.health-score-explanation p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.stage-desc {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-top: 4px;
    font-style: italic;
}

.mental-health-section {
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   Recommendations Section
   ============================================ */
.recommendations-section {
    margin-bottom: var(--spacing-xl);
}

.recommendations-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.recommendations-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.recommendations-icon-container {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
    flex-shrink: 0;
}

.recommendations-header-text {
    flex: 1;
}

.recommendations-header-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.recommendations-header-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.recommendation-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.recommendation-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
    opacity: 1;
    transition: opacity var(--transition-base);
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.recommendation-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: #667eea;
}

.recommendation-item:hover::before {
    opacity: 1;
    width: 5px;
}

.recommendation-item.priority-high::before {
    background: linear-gradient(180deg, #ff6b6b 0%, #ffa500 100%);
}

.recommendation-item.priority-medium::before {
    background: linear-gradient(180deg, #4ecdc4 0%, #44a08d 100%);
}

.recommendation-item.priority-low::before {
    background: linear-gradient(180deg, #f093fb 0%, #f5576c 100%);
}

.rec-priority-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.3);
}

.rec-priority-badge.medium {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    box-shadow: 0 2px 8px rgba(78, 205, 196, 0.3);
}

.rec-priority-badge.low {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 2px 8px rgba(240, 147, 251, 0.3);
}

.rec-content-wrapper {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.rec-icon-wrapper {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.rec-icon-wrapper.meditation {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

.rec-icon-wrapper.exercise {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.3);
}

.rec-icon-wrapper.social {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 12px rgba(240, 147, 251, 0.3);
}

.rec-icon-wrapper.hydration {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
}

.rec-icon-wrapper.nature {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    box-shadow: 0 4px 12px rgba(17, 153, 142, 0.3);
}

.rec-text-content {
    flex: 1;
}

.rec-text-content {
    flex: 1;
    min-width: 0;
}

.rec-text-content h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.rec-text-content p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.rec-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.rec-stat {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    font-weight: 500;
}

.rec-stat i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.recommendations-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.recommendations-update-info {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    line-height: 1.5;
}

.recommendations-update-info i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-sm);
}

@media (max-width: 768px) {
    .recommendations-section {
        margin-bottom: var(--spacing-lg);
    }
    
    .recommendations-card {
        padding: var(--spacing-md);
        border-radius: var(--radius-lg);
    }
    
    .recommendations-header {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .recommendations-icon-container {
        width: 56px;
        height: 56px;
        font-size: var(--font-size-xl);
    }
    
    .recommendations-header-text h3 {
        font-size: var(--font-size-base);
        margin-bottom: 2px;
    }
    
    .recommendations-header-text p {
        font-size: var(--font-size-xs);
    }
    
    .recommendations-list {
        gap: var(--spacing-md);
    }
    
    .recommendation-item {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .recommendation-item::before {
        width: 3px;
    }
    
    .recommendation-item:hover::before {
        width: 4px;
    }
    
    .rec-priority-badge {
        font-size: 10px;
        padding: 5px var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
        display: inline-flex;
    }
    
    .rec-content-wrapper {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .rec-icon-wrapper {
        width: 56px;
        height: 56px;
        font-size: var(--font-size-lg);
        flex-shrink: 0;
        border-radius: var(--radius-md);
    }
    
    .rec-text-content {
        flex: 1;
        min-width: 0;
    }
    
    .rec-text-content h4 {
        font-size: var(--font-size-base);
        font-weight: 700;
        margin-bottom: var(--spacing-xs);
        line-height: 1.4;
        color: var(--text-primary);
    }
    
    .rec-text-content p {
        font-size: var(--font-size-sm);
        line-height: 1.7;
        margin-bottom: var(--spacing-sm);
        color: var(--text-secondary);
    }
    
    .rec-stats {
        flex-direction: column;
        gap: var(--spacing-xs);
        margin-top: var(--spacing-sm);
    }
    
    .rec-stat {
        font-size: 11px;
        padding: 8px var(--spacing-sm);
        width: 100%;
        justify-content: flex-start;
        border-radius: var(--radius-sm);
    }
    
    .recommendations-footer {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-md);
    }
    
    .recommendations-update-info {
        flex-direction: row;
        gap: var(--spacing-xs);
        font-size: var(--font-size-xs);
        text-align: center;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .recommendations-update-info i {
        font-size: 10px;
    }
}

/* Unified Mental Health Indicator Card */
.mental-indicator-unified-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    text-align: center;
}

.unified-gauge-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.unified-gauge {
    position: relative;
    width: 250px;
    height: 250px;
    margin: 0 auto;
    max-width: 100%;
}

.unified-gauge-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    display: block;
}

.unified-gauge-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.gauge-center-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-xs);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.gauge-center-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

/* Indicator Legend */
.indicator-legend {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

@media (max-width: 768px) {
    .indicator-legend {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

.legend-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.legend-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.legend-color {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.legend-color::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
    border-radius: var(--radius-md);
}

.legend-color i {
    color: white;
    font-size: var(--font-size-lg);
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.legend-color.anxiety-color {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa500 100%);
}

.legend-color.stress-color {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
}

.legend-color.mood-color {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.legend-color.depression-color {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.legend-content {
    flex: 1;
    text-align: left;
}

.legend-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.legend-title span {
    display: block;
}

.legend-value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.legend-desc {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    line-height: 1.4;
}

.mental-indicator-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    border: 1px solid var(--border-color);
}

.indicator-visual {
    flex-shrink: 0;
    width: 100px;
    text-align: center;
}

.indicator-gauge {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    background: conic-gradient(from 0deg, var(--primary-color) 0%, var(--primary-color) var(--gauge-percent, 0%), var(--bg-light) var(--gauge-percent, 0%), var(--bg-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xs);
    position: relative;
}

.indicator-gauge::before {
    content: '';
    position: absolute;
    width: 70px;
    height: 70px;
    border-radius: var(--radius-full);
    background: var(--bg-card);
}

.indicator-gauge .gauge-fill {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    background: conic-gradient(from 0deg, var(--primary-color) 0%, var(--primary-color) var(--gauge-percent, 0%), transparent var(--gauge-percent, 0%));
}

.indicator-percentage {
    position: relative;
    z-index: 1;
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
}

.mental-indicator-card.anxiety .indicator-gauge {
    background: conic-gradient(from 0deg, #7fb0c9 0%, #7fb0c9 25%, var(--bg-light) 25%, var(--bg-light) 100%);
}

.mental-indicator-card.stress .indicator-gauge {
    background: conic-gradient(from 0deg, #7fb0c9 0%, #7fb0c9 85%, var(--bg-light) 85%, var(--bg-light) 100%);
}

.mental-indicator-card.mood .indicator-gauge {
    background: conic-gradient(from 0deg, #b3d5e4 0%, #b3d5e4 70%, var(--bg-light) 70%, var(--bg-light) 100%);
}

.mental-indicator-card.depression .indicator-gauge {
    background: conic-gradient(from 0deg, #7fb0c9 0%, #7fb0c9 15%, var(--bg-light) 15%, var(--bg-light) 100%);
}

.indicator-details {
    flex: 1;
}

.indicator-details h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.indicator-details h3 i {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.indicator-status {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.indicator-status.low {
    color: var(--primary-color);
}

.indicator-status.high {
    color: var(--primary-color);
}

.indicator-status.stable {
    color: var(--primary-color);
}

.indicator-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-sm);
}

.indicator-tips {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tip-tag {
    padding: 4px var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.activity-summary {
    margin-bottom: var(--spacing-xl);
}

.activity-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.activity-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.activity-item:last-child {
    margin-bottom: 0;
}

.activity-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    flex-shrink: 0;
}

.activity-icon.steps {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.activity-icon.calories {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 4px 12px rgba(245, 87, 108, 0.3);
}

.activity-icon.distance {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.3);
}

.activity-info {
    flex: 1;
}

.activity-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.activity-value {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.activity-progress {
    width: 100%;
    height: 8px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.activity-progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.sleep-analysis {
    margin-bottom: var(--spacing-xl);
}

.sleep-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.sleep-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.sleep-duration,
.sleep-quality {
    text-align: center;
}

.sleep-time,
.quality-score {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.sleep-label,
.quality-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.sleep-chart {
    height: 150px;
    margin-bottom: var(--spacing-lg);
}

.sleep-chart canvas {
    width: 100%;
    height: 100%;
}

.sleep-stages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.sleep-stage {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.stage-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.stage-value {
    display: block;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.health-recommendations {
    margin-bottom: var(--spacing-xl);
}

.recommendations-list {
    display: grid;
    gap: var(--spacing-md);
}

.recommendation-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    transition: transform var(--transition-base);
    border: 1px solid var(--border-color);
}

.recommendation-item:hover {
    transform: translateX(4px);
}

.rec-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.rec-content h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.rec-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ============================================
   User-Friendly Help Elements
   ============================================ */
.welcome-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
    color: white;
}

.welcome-content {
    text-align: center;
}

.welcome-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: white;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.welcome-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.welcome-content p {
    font-size: var(--font-size-base);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.help-button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.help-button:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.help-guide {
    margin-bottom: var(--spacing-lg);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.help-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--primary-color);
    background: var(--bg-light);
}

.help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.help-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.help-header h3 i {
    color: var(--primary-color);
}

.close-help {
    background: var(--bg-secondary);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.close-help:hover {
    background: var(--danger-color);
    color: white;
    transform: rotate(90deg);
}

.help-content {
    display: grid;
    gap: var(--spacing-md);
}

.help-item {
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.help-item strong {
    display: block;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.help-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.section-header-with-help {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.help-tooltip-container {
    position: relative;
}

.help-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-lg);
    cursor: help;
    transition: all var(--transition-fast);
}

.help-icon:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transform: scale(1.1);
}

/* Tooltip styling */
.tooltip {
    position: fixed;
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    max-width: 250px;
    z-index: 10000;
    box-shadow: var(--shadow-xl);
    display: none;
    pointer-events: none;
    animation: fadeIn 0.2s ease-out;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--text-primary);
}

.metric-explanation {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-light);
    font-weight: 400;
    margin-top: 2px;
}

.metric-info {
    margin-top: var(--spacing-xs);
}

.metric-info small {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-style: italic;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.chart-title-with-help {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.chart-help {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-base);
    cursor: help;
}

.chart-explanation {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary-color);
}

.chart-explanation p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.chart-explanation-box {
    background: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.chart-explanation-box p {
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
}

.metric-explanation-text {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 3px solid var(--primary-color);
}

.metric-explanation-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.comparison-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    line-height: 1.5;
}

.metric-label-with-help {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.metric-help-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-xs);
    cursor: help;
    transition: all var(--transition-base);
}

.metric-help-icon:hover {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-unit {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.indicator-title-with-help {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.indicator-help-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-xs);
    cursor: help;
    transition: all var(--transition-base);
}

.indicator-help-icon:hover {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.indicator-description {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.progress-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
    text-align: right;
    font-weight: 500;
}

.biometric-card {
    position: relative;
}

.biometric-card .section-header-with-help {
    width: 100%;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    grid-column: 1 / -1;
}

.metrics-section {
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ============================================
   BLE Connection Section
   ============================================ */
.ble-connection-section {
    margin-bottom: var(--spacing-xl);
}

.ble-connection-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.ble-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.ble-status-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.ble-status-text {
    flex: 1;
}

.ble-status-label {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.ble-status-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.ble-controls {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.ble-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.ble-btn.ble-connect {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.ble-btn.ble-connect:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.ble-btn.ble-connect:active {
    transform: translateY(0);
}

.ble-btn.ble-disconnect {
    background: var(--danger-color);
    color: white;
    box-shadow: var(--shadow-md);
}

.ble-btn.ble-disconnect:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.ble-btn.ble-disconnect:active {
    transform: translateY(0);
}

.ble-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.ble-btn i {
    font-size: var(--font-size-lg);
}

/* ============================================
   Recording History Section
   ============================================ */
.recording-history-section {
    margin-bottom: var(--spacing-xl);
}

.history-loading,
.history-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-secondary);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.history-loading i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.history-empty i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.history-empty p {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.history-empty small {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.recording-history-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.recording-history-item {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.recording-history-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.recording-history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.recording-history-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.recording-history-date i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(90, 155, 184, 0.1) 0%, rgba(127, 176, 201, 0.1) 100%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.recording-date-text {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.recording-time-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.recording-history-duration {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, rgba(90, 155, 184, 0.1) 0%, rgba(127, 176, 201, 0.1) 100%);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--primary-color);
}

.recording-history-duration i {
    font-size: var(--font-size-sm);
}

.recording-history-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.history-stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(244, 250, 253, 0.8) 0%, rgba(229, 243, 249, 0.6) 100%);
    border-radius: var(--radius-md);
    border: 1px solid rgba(179, 213, 228, 0.3);
}

.history-stat-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.history-stat-icon.heart {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.2) 0%, rgba(255, 139, 171, 0.2) 100%);
    color: #ff6b9d;
}

.history-stat-icon.spo2 {
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.2) 0%, rgba(68, 160, 141, 0.2) 100%);
    color: #4ecdc4;
}

.history-stat-icon.gsr {
    background: linear-gradient(135deg, rgba(255, 230, 109, 0.2) 0%, rgba(255, 217, 102, 0.2) 100%);
    color: #ffb347;
}

.history-stat-icon.temp {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2) 0%, rgba(255, 87, 108, 0.2) 100%);
    color: #ff6b6b;
}

.history-stat-content {
    flex: 1;
}

.history-stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.history-stat-value {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-primary);
}

.recording-history-footer {
    display: flex;
    justify-content: flex-end;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.recording-data-points {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.recording-data-points i {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .recording-history-stats {
        grid-template-columns: 1fr;
    }
    
    .recording-history-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .recording-history-duration {
        align-self: flex-start;
    }
}

/* Notification Styles */
.notification-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
    pointer-events: none;
}

.notification {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    border-left: 4px solid var(--primary-color);
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-motion {
    border-left-color: #f59e0b;
}

.notification-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-size: 18px;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.notification-message {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.notification-close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    padding: 0;
}

.notification-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.notification-close i {
    font-size: 14px;
}

/* Mobile responsive for notifications */
@media (max-width: 768px) {
    .notification-container {
        top: 70px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .notification {
        transform: translateY(-100px);
    }
    
    .notification.show {
        transform: translateY(0);
    }
}

/* ============================================
   Modal Styles
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    animation: fadeIn 0.3s ease-out;
}

/* Blur background except top-header and bottom-nav */
.modal-overlay::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: -1;
}

/* Keep top-header and bottom-nav visible (not blurred) - they have higher z-index */
/* The blur effect is applied via ::before pseudo-element which is behind everything */
/* top-header and bottom-nav have z-index 10001, so they appear above the blur */

.modal-container {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 10000;
    position: relative;
    animation: slideUp 0.3s ease-out;
    border: 1px solid var(--border-color);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.modal-close-btn:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-xl);
    text-align: center;
}

.modal-icon {
    font-size: 3rem;
    color: var(--warning-color);
    margin-bottom: var(--spacing-lg);
}

.modal-icon i {
    display: block;
}

.modal-message {
    font-size: var(--font-size-base);
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    white-space: pre-line;
}

.modal-checklist {
    text-align: left;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.modal-checklist-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.modal-checklist-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.modal-checklist-items li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.modal-checklist-items li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-md);
}

.modal-btn {
    padding: var(--spacing-sm) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.modal-btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.modal-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.modal-btn-primary:active {
    transform: translateY(0);
}

/* Ensure top-header and bottom-nav stay above modal overlay */
/* Ensure top-header and bottom-nav stay above modal overlay and are not blurred */
/* These elements already have position: fixed and z-index set in their base styles */
/* We keep them fixed to ensure they don't scroll with content */
/* The blur effect from modal-overlay::before won't affect them because they're above it */
/* DO NOT override position: fixed - keep it as is */

/* Mobile responsive for modal */
@media (max-width: 768px) {
    .modal-container {
        max-width: 90%;
        margin: var(--spacing-lg);
    }
    
    .modal-body {
        padding: var(--spacing-lg);
    }
    
    .modal-icon {
        font-size: 2.5rem;
    }
}