:root {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ebebeb;
    --bg-card: rgba(255, 255, 255, 0.72);
    --bg-card-hover: rgba(255, 255, 255, 0.88);
    --bg-glass: rgba(255, 255, 255, 0.55);
    --bg-nav: rgba(245, 245, 245, 0.8);
    --bg-input: rgba(255, 255, 255, 0.7);
    --bg-overlay: rgba(255, 255, 255, 0.6);
    --bg-hero: linear-gradient(180deg, #e8e8e8 0%, #f5f5f5 100%);
    --text-primary: #111111;
    --text-secondary: #555555;
    --text-muted: #888888;
    --text-inverse: #ffffff;
    --border-color: rgba(0, 0, 0, 0.1);
    --border-strong: rgba(0, 0, 0, 0.18);
    --accent: #333333;
    --accent-hover: #111111;
    --accent-subtle: rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 4px 20px rgba(0, 0, 0, 0.06);
    --blur-amount: 16px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.2s ease;
    --success: #2d8a4e;
    --warning: #9a7b2d;
    --danger: #b83232;
    --info: #3a6b8a;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif;
}

[data-theme="dark"] {
    --bg-primary: #0e0e0e;
    --bg-secondary: #1a1a1a;
    --bg-card: rgba(30, 30, 30, 0.72);
    --bg-card-hover: rgba(40, 40, 40, 0.88);
    --bg-glass: rgba(25, 25, 25, 0.6);
    --bg-nav: rgba(14, 14, 14, 0.85);
    --bg-input: rgba(40, 40, 40, 0.7);
    --bg-overlay: rgba(0, 0, 0, 0.5);
    --bg-hero: linear-gradient(180deg, #141414 0%, #0e0e0e 100%);
    --text-primary: #e5e5e5;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --text-inverse: #111111;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.15);
    --accent: #d0d0d0;
    --accent-hover: #ffffff;
    --accent-subtle: rgba(255, 255, 255, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-glass: 0 4px 20px rgba(0, 0, 0, 0.3);
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #f87171;
    --info: #60a5fa;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--transition), color var(--transition);
}

.smoke-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-nav);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background var(--transition);
}

.smoke-nav .nav-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.smoke-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.smoke-nav .nav-links a {
    padding: 7px 14px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.smoke-nav .nav-links a:hover,
.smoke-nav .nav-links a.active {
    color: var(--text-primary);
    background: var(--accent-subtle);
}

.smoke-nav .nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.smoke-nav .nav-user {
    font-size: 13px;
    color: var(--text-muted);
    padding: 0 8px;
}

.theme-toggle {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    background: var(--bg-glass);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all var(--transition);
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
    font-family: var(--font-family);
}

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

.btn-primary:hover {
    opacity: 0.85;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--accent-subtle);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 7px 12px;
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--accent-subtle);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-glass);
    transition: all var(--transition);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-md);
}

.glass-card-static {
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-glass);
}

.smoke-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.smoke-container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.smoke-container-full {
    width: 100%;
    padding: 24px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.smoke-grid {
    display: grid;
    gap: 20px;
}

.smoke-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.smoke-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.smoke-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .smoke-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .smoke-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .smoke-grid-4,
    .smoke-grid-3,
    .smoke-grid-2 { grid-template-columns: 1fr; }

    .smoke-nav .nav-links { display: none; }

    .smoke-container,
    .smoke-container-wide,
    .smoke-container-full { padding: 16px; }
}

.smoke-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    transition: all var(--transition);
    outline: none;
}

.smoke-input:focus {
    border-color: var(--border-strong);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}

.smoke-input::placeholder {
    color: var(--text-muted);
}

.smoke-select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    cursor: pointer;
    outline: none;
    transition: all var(--transition);
    -webkit-appearance: none;
}

.smoke-select:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}

.smoke-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group {
    margin-bottom: 16px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-pro {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.badge-trial {
    background: var(--accent-subtle);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.badge-free {
    background: var(--accent-subtle);
    color: var(--text-muted);
}

.smoke-table {
    width: 100%;
    border-collapse: collapse;
}

.smoke-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.smoke-table td {
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

.smoke-table tr:hover td {
    background: var(--accent-subtle);
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.smoke-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    overflow-x: auto;
}

.smoke-tab {
    padding: 10px 18px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    background: none;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: var(--font-family);
}

.smoke-tab:hover {
    color: var(--text-primary);
}

.smoke-tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--text-primary);
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin: 24px 0;
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }

.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }

.smoke-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 24px;
    text-align: center;
    margin-top: 48px;
}

.smoke-footer a {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 12px;
    font-size: 13px;
    transition: color var(--transition);
}

.smoke-footer a:hover {
    color: var(--text-primary);
}

.smoke-footer p {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

.smoke-hero {
    background: var(--bg-hero);
    padding: 80px 24px;
    text-align: center;
}

.smoke-hero h1 {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 16px;
}

.smoke-hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .smoke-hero { padding: 48px 16px; }
    .smoke-hero h1 { font-size: 32px; }
    .smoke-hero p { font-size: 16px; }
}

.smoke-alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    border: 1px solid;
}

.smoke-alert-info {
    background: rgba(58, 107, 138, 0.1);
    border-color: rgba(58, 107, 138, 0.2);
    color: var(--info);
}

.smoke-alert-success {
    background: rgba(45, 138, 78, 0.1);
    border-color: rgba(45, 138, 78, 0.2);
    color: var(--success);
}

.smoke-alert-warning {
    background: rgba(154, 123, 45, 0.1);
    border-color: rgba(154, 123, 45, 0.2);
    color: var(--warning);
}

.smoke-alert-danger {
    background: rgba(184, 50, 50, 0.1);
    border-color: rgba(184, 50, 50, 0.2);
    color: var(--danger);
}

.progress-bar {
    height: 6px;
    background: var(--accent-subtle);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--text-primary);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.smoke-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.smoke-modal {
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-amount));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 480px;
    width: 90%;
    box-shadow: var(--shadow-lg);
}

.smoke-tooltip {
    position: relative;
}

.smoke-tooltip::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 10px;
    background: var(--text-primary);
    color: var(--bg-primary);
    font-size: 12px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    margin-bottom: 6px;
}

.smoke-tooltip:hover::after {
    opacity: 1;
}

.skeleton {
    background: linear-gradient(90deg, var(--accent-subtle) 25%, var(--bg-card) 50%, var(--accent-subtle) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.video-grid {
    display: grid;
    gap: 12px;
}

.video-grid-1 { grid-template-columns: 1fr; }
.video-grid-2 { grid-template-columns: repeat(2, 1fr); }
.video-grid-3 { grid-template-columns: repeat(3, 1fr); }
.video-grid-4 { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }

.video-tile {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.video-tile video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-tile-label {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(8px);
}

.emotion-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.emotion-bar-label {
    width: 70px;
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.emotion-bar-track {
    flex: 1;
    height: 6px;
    background: var(--accent-subtle);
    border-radius: 3px;
    overflow: hidden;
}

.emotion-bar-fill {
    height: 100%;
    background: var(--text-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
}

.emotion-bar-value {
    width: 38px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: right;
}

.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
}