/* AI Hairstyle Visualization - Premium Modern Design */

:root {
    /* Premium Color Palette */
    --primary-color: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --primary-gradient-hover: linear-gradient(135deg, #764ba2 0%, #667eea 50%, #f093fb 100%);
    
    --secondary-color: #8b5cf6;
    --secondary-light: #a78bfa;
    --secondary-dark: #7c3aed;
    
    --accent-color: #ec4899;
    --accent-light: #f472b6;
    
    --success-color: #10b981;
    --success-light: #34d399;
    --danger-color: #ef4444;
    --danger-light: #f87171;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    
    /* Text Colors */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-dark: rgba(255, 255, 255, 0.1);
    
    /* Border & Divider */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --divider: #e2e8f0;
    
    /* Shadows - Premium Depth */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --shadow-glow-strong: 0 0 30px rgba(99, 102, 241, 0.5);
    
    /* Border Radius */
    --radius-xs: 0.25rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.ai-hairstyle-body {
    font-family: 'Figtree', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: var(--primary-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background Pattern */
.ai-hairstyle-body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.ai-hairstyle-container {
    position: relative;
    z-index: 1;
    max-width: 100%;
    margin: 0 auto;
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-2xl);
}

/* Premium Header with Glassmorphism */
.ai-hairstyle-header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(139, 92, 246, 0.95) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--text-inverse);
    padding: var(--spacing-xl) var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-hairstyle-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    gap: var(--spacing-lg);
}

.ai-hairstyle-header h1 {
    font-size: 1.75rem;
    font-weight: 800;
    margin: 0;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.ai-hairstyle-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

/* Progress Stepper */
.progress-stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-xl);
}

.stepper-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    z-index: 2;
}

.stepper-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    border: 3px solid var(--border-color);
    transition: all var(--transition-base);
}

.stepper-item.active .stepper-icon {
    background: var(--primary-gradient);
    color: var(--text-inverse);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    transform: scale(1.1);
}

.stepper-item.completed .stepper-icon {
    background: var(--success-color);
    color: var(--text-inverse);
    border-color: var(--success-color);
}

.stepper-item.completed .stepper-icon::after {
    content: '✓';
    font-size: 1.25rem;
}

.stepper-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-base);
}

.stepper-item.active .stepper-label {
    color: var(--primary-color);
    font-weight: 700;
}

.stepper-line {
    flex: 1;
    height: 3px;
    background: var(--border-color);
    margin: 0 var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.stepper-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: var(--primary-gradient);
    transition: width var(--transition-slow);
}

.stepper-item.completed ~ .stepper-line::after {
    width: 100%;
}

/* Main Content Area */
.ai-hairstyle-main {
    flex: 1;
    padding: var(--spacing-2xl);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    background: linear-gradient(to bottom, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* Step Transitions */
.ai-hairstyle-step {
    display: none;
    animation: slideInUp 0.5s var(--transition-base);
}

.ai-hairstyle-step.active {
    display: block;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.step-content {
    max-width: 900px;
    margin: 0 auto;
    animation: fadeIn 0.6s ease-out;
}

.step-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step-content > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    font-size: 1.125rem;
    line-height: 1.7;
    font-weight: 400;
}

/* Premium Button Styles */
.btn-primary,
.btn-secondary,
.btn-capture,
.btn-retake,
.btn-voice {
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
    text-transform: none;
    box-shadow: var(--shadow-md);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-xl), var(--shadow-glow-strong);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--primary-color);
}

.btn-capture,
.btn-retake {
    width: 100%;
    margin-top: var(--spacing-md);
    padding: 0.875rem 1.5rem;
}

.btn-voice {
    width: 100%;
    padding: var(--spacing-2xl) var(--spacing-xl);
    font-size: 1.375rem;
    background: var(--primary-gradient);
    color: var(--text-inverse);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.btn-voice::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-voice:hover::after {
    width: 300px;
    height: 300px;
}

.btn-voice.recording {
    background: linear-gradient(135deg, var(--danger-color) 0%, var(--accent-color) 100%);
    animation: pulseGlow 2s ease-in-out infinite;
    box-shadow: var(--shadow-xl), 0 0 30px rgba(239, 68, 68, 0.5);
}

@keyframes pulseGlow {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-xl), 0 0 30px rgba(239, 68, 68, 0.5);
    }
    50% {
        transform: scale(1.05);
        box-shadow: var(--shadow-xl), 0 0 50px rgba(239, 68, 68, 0.7);
    }
}

/* Top Bar - Dark Header */
.dashboard-top-bar {
    background: #2d3748;
    color: var(--text-inverse);
    padding: var(--spacing-md) var(--spacing-2xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.875rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--success-color);
    animation: pulse 2s ease-in-out infinite;
}

.top-bar-stat {
    font-weight: 600;
    color: var(--text-inverse);
}

.top-bar-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary-color);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.top-bar-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.top-bar-badge {
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-greeting {
    font-weight: 600;
    color: var(--text-inverse);
}

.user-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

/* Dashboard Container */
.dashboard-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
}

.dashboard-title-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
}

.dashboard-title-section h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
}

/* System Status Banner */
.system-status-banner {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: var(--text-inverse);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

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

.status-icon {
    font-size: 1.5rem;
}

.status-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-inverse);
}

.api-status-list {
    margin-bottom: var(--spacing-lg);
}

.api-status-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.api-name {
    font-weight: 600;
    min-width: 150px;
}

.api-status {
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
}

.api-status.connected {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-inverse);
}

.api-key {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-family: monospace;
}

.btn-test-api {
    padding: var(--spacing-md) var(--spacing-xl);
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-inverse);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.btn-test-api:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--border-light);
}

.dashboard-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-xs);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dashboard-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
}

.dashboard-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.btn-refresh {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    background: var(--bg-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.btn-refresh:hover {
    background: var(--primary-gradient);
    border-color: var(--primary-color);
    transform: rotate(180deg);
    color: var(--text-inverse);
}

.dashboard-filter {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    font-family: 'Figtree', sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.dashboard-filter:hover {
    border-color: var(--primary-color);
}

.dashboard-filter:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* KPI Section - SMS Dashboard Style */
.kpi-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.kpi-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.kpi-card-warning {
    border-color: #f59e0b;
    background: linear-gradient(135deg, #fff7ed 0%, #ffffff 100%);
}

.kpi-icon {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.kpi-icon.yellow {
    background: #fef3c7;
}

.kpi-icon.orange {
    background: #fed7aa;
}

.kpi-icon.purple {
    background: #e9d5ff;
}

.kpi-icon.red {
    background: #fee2e2;
}

.kpi-icon.pink {
    background: #fce7f3;
}

.kpi-icon.multi {
    background: linear-gradient(135deg, #fef3c7 0%, #e9d5ff 50%, #fee2e2 100%);
}

.kpi-content {
    flex: 1;
}

.kpi-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.kpi-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Statistics Dashboard */
.stats-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card-primary {
    border-left: 4px solid var(--primary-color);
}

.stat-card-success {
    border-left: 4px solid var(--success-color);
}

.stat-card-warning {
    border-left: 4px solid var(--warning-color);
}

.stat-card-danger {
    border-left: 4px solid var(--danger-color);
}

.stat-card-info {
    border-left: 4px solid var(--info-color);
}

.stat-card-secondary {
    border-left: 4px solid var(--secondary-color);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-icon {
    font-size: 2.5rem;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: 0.75rem;
    font-weight: 700;
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

/* Charts Grid Layouts */
.charts-grid-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.charts-row-additional {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
}

/* Info Cards Grid */
.info-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-2xl) 0;
}

.info-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.info-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.info-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.info-card h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.info-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Upload Progress */
.upload-progress {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

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

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.progress-text {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.chart-container {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.chart-container:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.chart-container:hover::before {
    transform: scaleX(1);
}

.chart-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-light);
}

.chart-container h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.chart-legend {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    display: inline-block;
}

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

.chart-large canvas {
    max-height: 400px;
}

.chart-medium canvas {
    max-height: 300px;
}

.chart-small canvas {
    max-height: 250px;
}

/* Operating Mode Section */
.operating-mode-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
}

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

.section-icon {
    font-size: 1.5rem;
}

.section-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

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

.mode-button {
    padding: var(--spacing-lg) var(--spacing-2xl);
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.mode-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

/* Quick Actions Section */
.quick-actions-section {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.action-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    cursor: pointer;
}

.action-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.action-card-warning {
    border-color: #f59e0b;
    background: linear-gradient(135deg, #fff7ed 0%, #ffffff 100%);
}

.action-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.action-icon.yellow {
    background: #fef3c7;
}

.action-icon.purple {
    background: #e9d5ff;
}

.action-icon.multi {
    background: linear-gradient(135deg, #fef3c7 0%, #e9d5ff 50%, #fee2e2 100%);
}

.action-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.action-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Start Session Section */
.start-session-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-2xl);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-color);
}

.btn-large-main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-2xl);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    min-height: 80px;
}

.qr-section-inline {
    text-align: center;
}

.qr-code-container-small {
    display: inline-block;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
}

.qr-instruction-small {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin: 0;
}

/* Dashboard Footer */
.dashboard-footer {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--border-light);
}

.quick-actions h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.action-buttons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.125rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    min-height: 100px;
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    font-weight: 600;
}

.qr-section h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-align: center;
}

/* QR Code Section */
.qr-section {
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.qr-code-container {
    display: inline-block;
    padding: var(--spacing-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: transform var(--transition-base);
}

.qr-code-container:hover {
    transform: scale(1.05);
}

.qr-instruction {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    max-width: 300px;
    margin: 0 auto;
}

/* Selfie Upload - Premium Cards */
.selfie-upload-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-2xl) 0;
}

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

.selfie-preview {
    position: relative;
    width: 100%;
    aspect-ratio: 3/4;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 3px dashed var(--border-color);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.selfie-preview:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.selfie-preview.has-image {
    border-style: solid;
    border-color: var(--success-color);
    box-shadow: var(--shadow-xl);
}

.selfie-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
    border-radius: var(--radius-2xl);
}

.selfie-preview.has-image img {
    display: block;
}

.selfie-preview.has-image .selfie-placeholder {
    display: none;
}

.selfie-placeholder {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--spacing-lg);
}

.selfie-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: var(--text-inverse);
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--bg-primary);
}

.selfie-placeholder p {
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: var(--spacing-sm);
}

.selfie-input {
    display: none;
}

/* Style Selection - Premium Tabs */
.style-selection-container {
    margin: var(--spacing-2xl) 0;
}

.input-method-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    background: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
}

.tab-btn {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.tab-btn::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-base);
    border-radius: var(--radius-full);
}

.tab-btn.active {
    color: var(--primary-color);
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

.tab-btn.active::before {
    transform: scaleX(1);
}

.tab-btn:hover:not(.active) {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Input Panels - Glassmorphism */
.input-panel {
    display: none;
    padding: var(--spacing-2xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    min-height: 350px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.4s ease-out;
}

.input-panel.active {
    display: block;
}

#style-text-input {
    width: 100%;
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    margin-bottom: var(--spacing-lg);
    background: var(--bg-primary);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

#style-text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md), 0 0 0 4px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.voice-status {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
    border: 2px dashed var(--border-color);
    transition: all var(--transition-base);
}

.voice-status:not(:empty) {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    color: var(--text-primary);
}

/* Hairstyle Library - Premium Grid */
.hairstyle-library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-sm);
}

.library-item {
    position: relative;
    aspect-ratio: 3/4;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 3px solid transparent;
    box-shadow: var(--shadow-md);
    background: var(--bg-secondary);
}

.library-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
}

.library-item:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: var(--primary-color);
}

.library-item:hover::before {
    opacity: 1;
}

.library-item.selected {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl), 0 0 0 4px rgba(99, 102, 241, 0.2), var(--shadow-glow);
    transform: scale(1.05);
}

.library-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.library-item:hover img {
    transform: scale(1.1);
}

.library-item-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
    color: var(--text-inverse);
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 700;
    z-index: 2;
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.library-item:hover .library-item-label,
.library-item.selected .library-item-label {
    transform: translateY(0);
}

/* Image Carousel - Premium Design */
.image-carousel {
    margin: var(--spacing-2xl) 0;
    position: relative;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-2xl);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    gap: var(--spacing-2xl);
}

.carousel-item {
    min-width: 100%;
    position: relative;
    transition: all var(--transition-slow);
    opacity: 0.6;
}

.carousel-item.active {
    opacity: 1;
    transform: scale(1.05);
    z-index: 2;
}

.carousel-item img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    cursor: pointer;
    transition: transform var(--transition-base);
}

.carousel-item:hover img {
    transform: scale(1.02);
}

.carousel-item-label {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.carousel-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    pointer-events: none;
    z-index: 10;
}

.carousel-btn {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-size: 1.75rem;
    color: var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    pointer-events: all;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 300;
}

.carousel-btn:hover {
    transform: scale(1.15);
    background: var(--primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    border-color: transparent;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.carousel-indicator {
    width: 0.875rem;
    height: 0.875rem;
    border-radius: var(--radius-full);
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.carousel-indicator:hover {
    background: var(--primary-light);
    transform: scale(1.2);
}

.carousel-indicator.active {
    background: var(--primary-color);
    transform: scale(1.4);
    box-shadow: var(--shadow-md), 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

/* Selected Image Display */
.selected-image-display {
    margin: var(--spacing-2xl) 0;
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.selected-image-display img {
    max-width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    animation: scaleIn 0.6s var(--transition-bounce);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Premium Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    color: var(--text-inverse);
}

.loading-spinner {
    width: 5rem;
    height: 5rem;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--text-inverse);
    border-right-color: var(--text-inverse);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
    box-shadow: var(--shadow-glow);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-text {
    margin-top: var(--spacing-xl);
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

/* AI Voice Output - Premium Toast */
.ai-voice-output {
    position: fixed;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--text-primary);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    max-width: 90%;
    display: none;
    z-index: 1000;
    animation: slideUpBounce 0.5s var(--transition-bounce);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    font-size: 1rem;
}

.ai-voice-output.active {
    display: block;
}

@keyframes slideUpBounce {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(30px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0) scale(1);
    }
}

/* Responsive Design - Mobile (Portrait) */
@media (max-width: 768px) {
    .ai-hairstyle-header {
        padding: var(--spacing-lg) var(--spacing-lg);
    }
    
    .ai-hairstyle-header h1 {
        font-size: 1.375rem;
    }
    
    .ai-hairstyle-main {
        padding: var(--spacing-lg);
    }
    
    .step-content h2 {
        font-size: 2rem;
    }
    
    .step-content > p {
        font-size: 1rem;
    }
    
    .stats-dashboard {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .stat-card {
        padding: var(--spacing-md);
        flex-direction: column;
        text-align: center;
    }
    
    .stat-icon {
        width: 3rem;
        height: 3rem;
        font-size: 2rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .progress-stepper {
        padding: var(--spacing-md) var(--spacing-lg);
        overflow-x: auto;
    }
    
    .stepper-icon {
        width: 2rem;
        height: 2rem;
        font-size: 0.75rem;
    }
    
    .stepper-label {
        font-size: 0.65rem;
    }
    
    .stepper-line {
        margin: 0 var(--spacing-xs);
        min-width: 30px;
    }
    
    .dashboard-top-bar {
        padding: var(--spacing-sm) var(--spacing-lg);
        flex-wrap: wrap;
    }
    
    .top-bar-left {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .top-bar-btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .dashboard-container {
        padding: var(--spacing-lg);
    }
    
    .dashboard-title-section h2 {
        font-size: 1.5rem;
    }
    
    .kpi-section {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .kpi-value {
        font-size: 2rem;
    }
    
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .start-session-section {
        flex-direction: column;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .dashboard-header h2 {
        font-size: 2rem;
    }
    
    .charts-grid-main,
    .charts-grid-secondary,
    .charts-row-additional {
        grid-template-columns: 1fr;
    }
    
    .dashboard-footer {
        grid-template-columns: 1fr;
    }
    
    .charts-section {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .chart-container {
        padding: var(--spacing-lg);
    }
    
    .chart-container h3 {
        font-size: 1.125rem;
    }
    
    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .chart-legend {
        flex-wrap: wrap;
    }
    
    .info-cards-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.375rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .fab {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 3rem;
        height: 3rem;
        font-size: 1.25rem;
    }
    
    .selfie-upload-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hairstyle-library-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--spacing-md);
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons button {
        width: 100%;
    }
    
    .carousel-controls {
        padding: 0 var(--spacing-sm);
    }
    
    .carousel-btn {
        width: 2.75rem;
        height: 2.75rem;
        font-size: 1.5rem;
    }
    
    .input-method-tabs {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .tab-btn {
        width: 100%;
    }
}

/* Responsive Design - TV/Mirror (Landscape) */
@media (min-width: 1024px) and (orientation: landscape) {
    .ai-hairstyle-container {
        max-width: 100%;
    }
    
    .ai-hairstyle-main {
        padding: var(--spacing-3xl);
    }
    
    .selfie-upload-container {
        grid-template-columns: repeat(3, 1fr);
        max-width: 1200px;
        margin: var(--spacing-2xl) auto;
    }
    
    .hairstyle-library-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .carousel-item.active {
        transform: scale(1.1);
    }
    
    .step-content {
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
    }
    
    .step-content::-webkit-scrollbar {
        height: 10px;
    }
    
    .step-content::-webkit-scrollbar-track {
        background: var(--bg-tertiary);
        border-radius: var(--radius-full);
    }
    
    .step-content::-webkit-scrollbar-thumb {
        background: var(--primary-gradient);
        border-radius: var(--radius-full);
    }
    
    .step-content::-webkit-scrollbar-thumb:hover {
        background: var(--primary-gradient-hover);
    }
}

/* Touch-friendly for TV */
@media (pointer: coarse) {
    .btn-primary,
    .btn-secondary,
    .btn-capture,
    .btn-retake,
    .tab-btn {
        min-height: 48px;
        min-width: 48px;
    }
    
    .library-item {
        min-height: 220px;
    }
    
    .carousel-btn {
        min-width: 48px;
        min-height: 48px;
    }
}

/* Print styles */
@media print {
    .ai-hairstyle-header,
    .action-buttons,
    .carousel-controls {
        display: none;
    }
    
    .ai-hairstyle-body {
        background: white;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Floating Action Button */
.fab {
    position: fixed;
    bottom: var(--spacing-2xl);
    right: var(--spacing-2xl);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-full);
    background: var(--primary-gradient);
    color: var(--text-inverse);
    border: none;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all var(--transition-base);
    animation: pulseFloat 3s ease-in-out infinite;
}

@keyframes pulseFloat {
    0%, 100% {
        transform: translateY(0) scale(1);
        box-shadow: var(--shadow-xl), var(--shadow-glow);
    }
    50% {
        transform: translateY(-10px) scale(1.05);
        box-shadow: var(--shadow-2xl), 0 0 40px rgba(99, 102, 241, 0.6);
    }
}

.fab:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: var(--shadow-2xl), var(--shadow-glow-strong);
}

.fab:active {
    transform: scale(0.95);
}

/* Tooltip */
.tooltip {
    position: fixed;
    background: rgba(15, 23, 42, 0.95);
    color: var(--text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    pointer-events: none;
    z-index: 10000;
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 250px;
    text-align: center;
}

.tooltip.active {
    opacity: 1;
    transform: translateY(0);
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 6px solid rgba(15, 23, 42, 0.95);
    transition: all var(--transition-base);
}

.tooltip.tooltip-bottom::after {
    bottom: auto;
    top: -6px;
    border-top: none;
    border-bottom: 6px solid rgba(15, 23, 42, 0.95);
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --border-color: #334155;
    }
}