/* ===================================================================
   Smart Recognition Console - Professional UI Stylesheet
   Primary Color: #478ac9 (Your Preferred Blue)
   Font: Inter (Modern Sans-Serif)
   =================================================================== */

/* === CSS Variables === */
:root {
    /* Primary Brand Colors */
    --primary-color: #478ac9;
    --primary-hover: #3a73ab;
    --primary-light: #5a9ed6;
    --primary-dark: #326191;

    /* Semantic Colors */
    --success-color: #10b981;
    --success-hover: #059669;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;

    /* Backgrounds - Lighter for better readability */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #232936;
    --bg-card: #2a3142;
    --bg-hover: #353d52;

    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;

    /* Borders & Shadows */
    --border-color: rgba(148, 163, 184, 0.12);
    --border-hover: rgba(71, 138, 201, 0.3);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.6);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.7);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* === Global Resets === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === Scrollbar Styling === */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

/* === Navigation Bar === */
.navbar {
    background: linear-gradient(to bottom, var(--bg-card), rgba(30, 39, 54, 0.95));
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
    z-index: 1000;
}

.logo-container {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(71, 138, 201, 0.3);
}

.logo-container i {
    font-size: 24px;
    color: white;
}

.brand-text {
    line-height: 1.3;
}

.brand-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.brand-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Navigation Links */
.nav-links {
    display: flex;
    gap: 0.5rem;
    margin-right: 1rem;
}

.nav-links .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-links .nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.nav-links .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-color: var(--primary-color);
}

.nav-links .nav-link i {
    font-size: 0.875rem;
}

/* System Status Indicator */
.system-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-dot.online {
    background: var(--success-color);
    box-shadow: 0 0 10px var(--success-color);
}

.status-dot.offline {
    background: var(--text-muted);
    animation: none;
}

.status-dot.streaming {
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* Settings Button */
.btn-icon {
    width: 42px;
    height: 42px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.btn-settings {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-settings:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: rotate(90deg);
}

/* === Main Content === */
.main-content {
    padding: 2rem 1.5rem;
    max-width: 1920px;
    margin: 0 auto;
}

/* === Card Styling === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    height: 100%;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--border-hover);
}

.card-header {
    background: linear-gradient(to bottom, rgba(71, 138, 201, 0.10), transparent);
    padding: 1.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.header-content {
    flex: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 0.25rem;
}

.card-title i {
    color: var(--primary-color);
    font-size: 1.15rem;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background: rgba(10, 14, 26, 0.4);
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* === Control Buttons === */
.control-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.control-buttons .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    border: none;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

.control-buttons .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.control-buttons .btn:active {
    transform: translateY(0);
}

.control-buttons .btn i {
    font-size: 0.875rem;
}

/* Button Color Variants */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), var(--success-hover));
    color: white;
}

.btn-success:hover {
    background: linear-gradient(135deg, #14cc8f, var(--success-color));
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-hover));
    color: white;
}

.btn-danger:hover {
    background: linear-gradient(135deg, #f56565, var(--danger-color));
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #2563eb);
    color: white;
}

.btn-info:hover {
    background: linear-gradient(135deg, #60a5fa, var(--info-color));
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn {
    font-weight: 600;
    border-radius: var(--radius-md);
    padding: 0.65rem 1.25rem;
    border: none;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.btn i {
    font-size: 0.9rem;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.btn:hover::before {
    transform: translateX(100%);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(71, 138, 201, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(71, 138, 201, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #14b887);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-hover), var(--success-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #f87171);
    color: white;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--danger-hover), var(--danger-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.4);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #60a5fa);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-info:hover {
    background: linear-gradient(135deg, #2563eb, var(--info-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.4);
    color: white;
}

.btn-outline-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.btn-outline-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* === Video Container === */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.8), var(--shadow-lg);
    border: 2px solid rgba(71, 138, 201, 0.2);
}

.video-container video,
.video-container canvas,
.video-container .remote-stream {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-container canvas {
    pointer-events: none;
    z-index: 2;
    /* Canvas is hidden - overlays only appear in snapshot */
    display: none !important;
}

.video-container .remote-stream {
    z-index: 1;
}

/* Video Watermark */
.video-watermark {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 3;
    border: 1px solid rgba(71, 138, 201, 0.2);
}

.video-watermark i {
    color: var(--primary-color);
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(15px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 10;
}

.loading-text {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.loading-overlay .spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--primary-color);
}

/* === Status Items === */
.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.status-item i {
    color: var(--primary-color);
    font-size: 1rem;
}

.status-label {
    font-weight: 500;
}

.status-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1rem;
}

/* === Timeline === */
.timeline {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 500px;
    overflow-y: auto;
}

.timeline-empty {
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.timeline-empty i {
    font-size: 2.5rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.timeline-item {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-color);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.timeline-item:hover {
    background: rgba(71, 138, 201, 0.08);
    transform: translateX(6px);
}

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

.timeline-item:last-child {
    border-bottom: none;
}

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

.timeline-item strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.timeline-item small {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.timeline-badge {
    padding: 0.25rem 0.75rem;
    background: rgba(71, 138, 201, 0.15);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* === Face Gallery === */
.face-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 1rem;
    max-height: 450px;
    overflow-y: auto;
}

.gallery-empty {
    grid-column: 1 / -1;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.gallery-empty i {
    font-size: 2.5rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.face-card {
    background: rgba(71, 138, 201, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem;
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.face-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.face-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(71, 138, 201, 0.3);
    border-color: var(--primary-color);
    background: rgba(71, 138, 201, 0.12);
}

.face-card:hover::after {
    transform: scaleX(1);
}

.face-card img {
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    border: 2px solid var(--border-color);
    transition: all var(--transition-normal);
}

.face-card:hover img {
    border-color: var(--primary-color);
}

.face-card strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.face-card small {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.face-card .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) !important;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* === Modals === */
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: linear-gradient(to bottom, rgba(71, 138, 201, 0.08), transparent);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-title i {
    color: var(--primary-color);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    background: rgba(10, 14, 26, 0.4);
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* === Form Controls === */
.form-label {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-label i {
    color: var(--primary-color);
}

.form-control {
    background: rgba(10, 14, 26, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.form-control:focus {
    background: rgba(10, 14, 26, 0.8);
    border-color: var(--primary-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(71, 138, 201, 0.2);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-text {
    color: var(--text-muted);
    font-size: 0.825rem;
}

.form-text i {
    color: var(--primary-color);
}

/* Face Preview in Modal */
.face-preview-container {
    background: rgba(10, 14, 26, 0.6);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
}

.face-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--text-muted);
}

.face-preview i {
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.5;
}

/* === Alerts === */
.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
}

.alert-info {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.alert-primary {
    background: rgba(71, 138, 201, 0.15);
    color: var(--primary-light);
    border: 1px solid rgba(71, 138, 201, 0.3);
}

/* === Toast Notifications === */
.toast-container {
    position: fixed;
    top: 5rem;
    right: 1.5rem;
    z-index: 9999;
}

.floating-alert {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    min-width: 320px;
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
}

.floating-alert.success {
    border-left: 4px solid var(--success-color);
    background: linear-gradient(to right, rgba(16, 185, 129, 0.15), var(--bg-card));
}

.floating-alert.error {
    border-left: 4px solid var(--danger-color);
    background: linear-gradient(to right, rgba(239, 68, 68, 0.15), var(--bg-card));
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* === Offcanvas Panel === */
.offcanvas {
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    max-width: 420px;
}

.offcanvas-header {
    background: linear-gradient(to bottom, rgba(71, 138, 201, 0.08), transparent);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

.offcanvas-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.offcanvas-title i {
    color: var(--primary-color);
}

.offcanvas-body {
    padding: 1.5rem;
}

.example-btn {
    text-align: left;
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
}

.example-btn i {
    width: 24px;
    color: var(--primary-color);
}

.example-btn:hover {
    background: rgba(71, 138, 201, 0.1);
    border-color: var(--primary-color);
    transform: translateX(4px);
}

/* === Responsive Design === */
@media (max-width: 1400px) {
    .brand-title {
        font-size: 1.2rem;
    }

    .control-buttons {
        width: 100%;
    }

    .control-buttons .btn span {
        display: none;
    }

    .control-buttons .btn {
        flex: 1;
        justify-content: center;
    }
}

@media (max-width: 992px) {
    .main-content {
        padding: 1.5rem 1rem;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .control-buttons {
        width: 100%;
    }

    .card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .brand-subtitle {
        display: none;
    }

    .timeline {
        max-height: 350px;
    }

    .face-gallery {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    .brand-title {
        font-size: 1rem;
    }

    .logo-container {
        width: 40px;
        height: 40px;
    }

    .logo-container i {
        font-size: 20px;
    }

    .toast-container {
        right: 1rem;
        left: 1rem;
    }

    .floating-alert {
        min-width: auto;
    }

    .status-text {
        display: none;
    }
}

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

.card {
    animation: fadeIn 0.4s ease;
}

/* === Utilities === */
.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-muted { color: var(--text-muted) !important; }

.fw-semibold { font-weight: 600; }

/* === Code Blocks === */
code {
    background: rgba(71, 138, 201, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: var(--primary-light);
    font-size: 0.85em;
    font-family: 'Courier New', monospace;
}

/* === Faces Page Specific Styles === */
.faces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

.search-filter-bar {
    background: rgba(71, 138, 201, 0.05);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.search-filter-bar .form-control {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.search-filter-bar .form-control:focus {
    background: var(--bg-card);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(71, 138, 201, 0.25);
    color: var(--text-primary);
}

.search-filter-bar .input-group-text {
    background: var(--bg-tertiary);
    border-color: var(--border-color);
    color: var(--text-muted);
}

.face-count-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    height: 100%;
}

.face-count-badge i {
    font-size: 1.1rem;
}

.face-count-badge strong {
    font-size: 1.1rem;
}

/* === Snapshot Analysis Panel === */
.snapshot-container {
    position: relative;
    width: 100%;
    min-height: 250px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.snapshot-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    max-height: 400px;
}

.snapshot-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-muted);
    padding: 2rem;
    text-align: center;
}

.snapshot-placeholder i {
    font-size: 3rem;
    opacity: 0.5;
    color: var(--primary-color);
}

.snapshot-placeholder p {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.snapshot-placeholder small {
    font-size: 0.85rem;
}

/* Snapshot History Grid */
.snapshot-history-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.snapshot-history-label i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

.snapshot-history-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.snapshot-thumbnail-placeholder,
.snapshot-thumbnail {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 aspect ratio */
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.snapshot-thumbnail-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.snapshot-thumbnail-placeholder i {
    position: absolute;
    font-size: 1.5rem;
    color: var(--text-muted);
    opacity: 0.3;
}

.snapshot-thumbnail {
    cursor: pointer;
}

.snapshot-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.snapshot-thumbnail:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.snapshot-thumbnail-time {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-secondary);
    font-size: 0.65rem;
    padding: 0.25rem;
    text-align: center;
}

/* === Attendance Analysis Panel === */
.attendance-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.attendance-snapshot-container {
    position: relative;
    width: 100%;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.attendance-snapshot-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    max-height: 600px;
}

.snapshot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 1rem;
}

.snapshot-overlay i {
    font-size: 3rem;
    opacity: 0.5;
}

.snapshot-overlay p {
    margin: 0;
    font-size: 1rem;
}

.snapshot-overlay.d-none {
    display: none !important;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1.25rem;
}

.stat-icon.bg-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.stat-icon.bg-success {
    background: linear-gradient(135deg, var(--success-color), var(--success-hover));
}

.stat-icon.bg-warning {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
}

.stat-icon.bg-info {
    background: linear-gradient(135deg, var(--info-color), #2563eb);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-value.small {
    font-size: 0.9rem;
    font-weight: 500;
}

.attendance-card .table {
    color: var(--text-primary);
    margin-bottom: 0;
}

.attendance-card .table thead th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    border-bottom: 2px solid var(--border-color);
    padding: 0.75rem;
}

.attendance-card .table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.attendance-card .table tbody tr:hover {
    background-color: var(--bg-hover);
}

.attendance-card .table tbody td {
    padding: 0.75rem;
    vertical-align: middle;
}

.attendance-card .badge {
    padding: 0.35rem 0.75rem;
    font-weight: 500;
}

#attendanceStatusBadge i {
    margin-right: 0.25rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 0.25rem;
    }

    .nav-links .nav-link span {
        display: none;
    }

    .faces-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .attendance-card .table {
        font-size: 0.85rem;
    }
}

/* === Persons Management Tab Styles === */
.persons-stats .stat-mini {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.persons-stats .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.persons-stats .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.persons-list-container {
    max-height: 500px;
    overflow-y: auto;
}

.person-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    transition: all var(--transition-normal);
}

.person-item:hover {
    background: var(--bg-hover);
    border-color: var(--border-hover);
    transform: translateX(3px);
}

.person-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.person-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.person-id-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

.person-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.person-info i {
    width: 14px;
    margin-right: 0.25rem;
}

.person-face-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
}

.face-status-badge {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 8px;
    font-weight: 600;
}

.face-status-badge.registered {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
}

.face-status-badge.pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning-color);
}

.btn-register-face {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-register-face:hover {
    background: var(--success-hover);
    transform: scale(1.05);
}

.persons-empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
}

.persons-empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Tab styling overrides for right panel */
.card-header-tabs {
    border-bottom: none;
    margin-bottom: -1px;
}

.card-header-tabs .nav-link {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.card-header-tabs .nav-link:hover {
    color: var(--text-secondary);
}

.card-header-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: transparent;
}

.card-header-tabs .nav-link i {
    margin-right: 0.4rem;
}