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

:root {
    color-scheme: dark;
    --bg: #0b1220;
    --bg-elevated: #141c2e;
    --bg-card: linear-gradient(165deg, rgba(30, 41, 59, 0.95) 0%, rgba(15, 23, 42, 0.98) 100%);
    --bg-preview: #0f172a;
    --bg-fallback: linear-gradient(145deg, #1e3a5f 0%, #0f172a 55%, #172554 100%);
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --text-subtle: #64748b;
    --accent: #3b82f6;
    --accent-strong: #2563eb;
    --accent-soft: #93c5fd;
    --accent-glow: rgba(59, 130, 246, 0.35);
    --stat-accent: #6ee7b7;
    --border: rgba(148, 163, 184, 0.14);
    --border-hover: rgba(59, 130, 246, 0.55);
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    --shadow-hover: 0 28px 70px rgba(15, 23, 42, 0.55), 0 0 0 1px rgba(59, 130, 246, 0.18);
    --overlay: linear-gradient(180deg, transparent 35%, rgba(11, 18, 32, 0.72) 100%);
    --badge-cat-bg: rgba(59, 130, 246, 0.14);
    --badge-cat-text: #bfdbfe;
    --filter-bg: rgba(20, 28, 46, 0.9);
    --filter-text: #94a3b8;
    --filter-active-bg: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --filter-active-text: #fff;
    --topbar-bg: rgba(11, 18, 32, 0.88);
    --topbar-border: rgba(148, 163, 184, 0.12);
    --toggle-bg: #1e293b;
    --toggle-thumb: #e2e8f0;
    --hero-glow: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(59, 130, 246, 0.22), transparent 70%);
}

[data-theme="light"] {
    color-scheme: light;
    --bg: #eef2f7;
    --bg-elevated: #ffffff;
    --bg-card: linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
    --bg-preview: #e2e8f0;
    --bg-fallback: linear-gradient(145deg, #dbeafe 0%, #f1f5f9 50%, #e0e7ff 100%);
    --text: #0f172a;
    --text-muted: #475569;
    --text-subtle: #64748b;
    --accent: #2563eb;
    --accent-strong: #1d4ed8;
    --accent-soft: #1d4ed8;
    --accent-glow: rgba(37, 99, 235, 0.2);
    --stat-accent: #059669;
    --border: rgba(148, 163, 184, 0.35);
    --border-hover: rgba(37, 99, 235, 0.45);
    --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 28px 60px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(37, 99, 235, 0.12);
    --overlay: linear-gradient(180deg, transparent 35%, rgba(241, 245, 249, 0.85) 100%);
    --badge-cat-bg: rgba(37, 99, 235, 0.1);
    --badge-cat-text: #1d4ed8;
    --filter-bg: #ffffff;
    --filter-text: #475569;
    --filter-active-bg: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --filter-active-text: #ffffff;
    --topbar-bg: rgba(255, 255, 255, 0.92);
    --topbar-border: rgba(203, 213, 225, 0.9);
    --toggle-bg: #cbd5e1;
    --toggle-thumb: #ffffff;
    --hero-glow: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(37, 99, 235, 0.12), transparent 70%);
}

body {
    font-family: Inter, system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background-color 0.25s ease, color 0.25s ease;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--hero-glow);
    pointer-events: none;
    z-index: 0;
}

.catalog-topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--topbar-bg);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--topbar-border);
}

.catalog-topbar-inner {
    width: min(1320px, 100% - 2rem);
    margin: 0 auto;
    padding: 0.85rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.catalog-brand {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-subtle);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.4rem 0.85rem 0.4rem 0.5rem;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--text);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.theme-toggle-track {
    position: relative;
    width: 2.5rem;
    height: 1.35rem;
    background: var(--toggle-bg);
    border-radius: 999px;
    flex-shrink: 0;
    transition: background 0.25s ease;
}

.theme-toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 1rem;
    height: 1rem;
    background: var(--toggle-thumb);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.25s ease;
}

[data-theme="light"] .theme-toggle-thumb {
    transform: translateX(1.15rem);
}

.theme-toggle-label-dark,
.theme-toggle-label-light {
    line-height: 1;
}

[data-theme="light"] .theme-toggle-label-dark {
    display: none;
}

[data-theme="dark"] .theme-toggle-label-light {
    display: none;
}

.wrap {
    position: relative;
    z-index: 1;
    width: min(1320px, 100% - 2rem);
    margin: 0 auto;
    padding: 2rem 0 5rem;
}

.catalog-hero {
    margin-bottom: 2.5rem;
    max-width: 720px;
}

.catalog-kicker {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-soft);
    margin-bottom: 0.75rem;
}

h1 {
    font-size: clamp(2rem, 4.5vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 0.85rem;
}

.sub {
    color: var(--text-muted);
    max-width: 720px;
    line-height: 1.65;
    font-size: 1.02rem;
}

.catalog-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    margin-top: 1.5rem;
}

.catalog-stat {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.85rem 1.1rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    min-width: 120px;
}

.catalog-stat strong {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--accent-soft);
    line-height: 1;
}

.catalog-stat span {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-subtle);
}

.filter-group {
    margin-bottom: 1.35rem;
}

.filter-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-subtle);
    margin-bottom: 0.55rem;
}

.filter-type-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: 0.35rem;
    max-width: 720px;
}

.filter-bar--types .filter-btn--type.active {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
}

.catalog-sections {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.catalog-section.hidden {
    display: none;
}

.catalog-section-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.catalog-section-title {
    font-size: clamp(1.25rem, 2.5vw, 1.55rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.35rem;
}

.catalog-section-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    max-width: 640px;
    line-height: 1.55;
}

.catalog-section-count {
    flex-shrink: 0;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-subtle);
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 1rem;
}

.filter-btn {
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--filter-bg);
    color: var(--filter-text);
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
}

.filter-btn:hover {
    border-color: var(--border-hover);
    color: var(--text);
    transform: translateY(-1px);
}

.filter-btn.active {
    background: var(--filter-active-bg);
    border-color: transparent;
    color: var(--filter-active-text);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.filter-meta {
    font-size: 0.85rem;
    color: var(--text-subtle);
    margin-bottom: 1.5rem;
}

.filter-meta strong {
    color: var(--accent-soft);
}

.filter-empty {
    color: var(--text-muted);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.card.hidden {
    display: none;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 0.28s ease, transform 0.28s ease, box-shadow 0.28s ease;
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.35), transparent 45%, rgba(148, 163, 184, 0.08));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.28s ease;
}

.card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

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

.card-link {
    color: inherit;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-preview {
    position: relative;
    aspect-ratio: 16 / 10;
    background: var(--bg-preview);
    overflow: hidden;
}

.card-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.card:hover .card-preview img {
    transform: scale(1.06);
}

.card-preview-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, rgba(11, 18, 32, 0.05) 0%, rgba(11, 18, 32, 0.55) 100%);
    opacity: 0;
    transition: opacity 0.28s ease;
}

.card:hover .card-preview-overlay {
    opacity: 1;
}

.card-open {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.96);
    color: #0f172a;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transform: translateY(8px);
    transition: transform 0.28s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.card:hover .card-open {
    transform: translateY(0);
}

.card-num {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    z-index: 2;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    background: rgba(11, 18, 32, 0.72);
    backdrop-filter: blur(8px);
    color: #f8fafc;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

[data-theme="light"] .card-num {
    background: rgba(255, 255, 255, 0.92);
    color: #0f172a;
    border-color: rgba(15, 23, 42, 0.08);
}

.card-preview-fallback {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    background: var(--bg-fallback);
}

.card-preview-fallback-num {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: rgba(148, 163, 184, 0.45);
}

.card-body {
    padding: 1.15rem 1.25rem 1.35rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.badge {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.28rem 0.6rem;
    border-radius: 999px;
}

.card-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.badge.category {
    background: var(--badge-cat-bg);
    color: var(--badge-cat-text);
    border: 1px solid rgba(59, 130, 246, 0.15);
}

.badge.type {
    background: rgba(16, 185, 129, 0.14);
    color: #6ee7b7;
    border: 1px solid rgba(16, 185, 129, 0.22);
}

[data-theme="light"] .badge.type {
    background: rgba(5, 150, 105, 0.1);
    color: #047857;
    border-color: rgba(5, 150, 105, 0.2);
}

.card-meta {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.45;
}

.title {
    font-weight: 700;
    font-size: 1rem;
    line-height: 1.4;
    letter-spacing: -0.01em;
    color: var(--text);
}

@media (max-width: 640px) {
    .catalog-topbar-inner {
        flex-direction: column;
        align-items: stretch;
    }

    .catalog-brand {
        text-align: center;
    }

    .theme-toggle {
        align-self: center;
    }

    .catalog-section-head {
        flex-direction: column;
    }

    .grid {
        grid-template-columns: 1fr;
        gap: 1.15rem;
    }
}