:root {
    --bg: #0f1117;
    --bg-secondary: #171923;
    --surface: rgba(255,255,255,0.04);
    --surface-hover: rgba(255,255,255,0.08);
    --border: rgba(255,255,255,0.08);
    --text: #f5f7fb;
    --muted: #a4adbf;
    --primary: #ff0033;
    --primary-soft: rgba(255, 0, 51, 0.12);
    --shadow: 0 10px 40px rgba(0,0,0,0.35);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top right, rgba(255,0,51,0.18), transparent 25%),
        linear-gradient(180deg, #0f1117 0%, #090b10 100%);
    color: var(--text);
    min-height: 100vh;
}

body.light {
    --bg: #f4f6fb;
    --bg-secondary: #ffffff;
    --surface: rgba(255,255,255,0.75);
    --surface-hover: rgba(0,0,0,0.04);
    --border: rgba(0,0,0,0.08);
    --text: #111827;
    --muted: #5f6675;
    --shadow: 0 10px 30px rgba(0,0,0,0.08);
    background: linear-gradient(180deg, #eef2ff 0%, #f9fafb 100%);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(10, 12, 18, 0.82);
    border-bottom: 1px solid var(--border);
}

.navbar {
    padding: 1rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    color: var(--text);
    text-decoration: none;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, #ff0033, #ff5c7c);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    font-size: 1.1rem;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-copy small {
    color: var(--muted);
}

.search-form {
    width: min(100%, 720px);
}

.search-form .input-group {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    overflow: hidden;
    backdrop-filter: blur(18px);
}

.search-form input {
    background: transparent;
    border: 0;
    color: var(--text);
    padding: 0.9rem 1.2rem;
}

.search-form input:focus {
    background: transparent;
    color: var(--text);
    box-shadow: none;
}

.search-form input::placeholder {
    color: var(--muted);
}

.btn-search {
    background: transparent;
    border: 0;
    color: var(--muted);
    width: 60px;
}

.btn-search:hover {
    color: var(--text);
}

.btn-ghost,
.btn-primary-soft {
    border-radius: 999px;
    padding: 0.75rem 1.2rem;
    border: 1px solid var(--border);
    transition: 0.2s ease;
}

.btn-ghost {
    background: var(--surface);
    color: var(--text);
}

.btn-ghost:hover,
.btn-primary-soft:hover {
    transform: translateY(-1px);
    background: var(--surface-hover);
    color: var(--text);
}

.btn-primary-soft {
    background: var(--primary-soft);
    color: #ff6f8f;
    border-color: rgba(255,0,51,0.2);
}

.hero-card,
.watch-panel,
.side-section,
.glass-alert,
.empty-state,
.video-meta {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
}

.hero-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
}

.hero-card h1 {
    font-size: clamp(2rem, 4vw, 3.4rem);
    margin-bottom: 1rem;
    font-weight: 800;
}

.hero-card p {
    max-width: 760px;
    color: var(--muted);
    margin: 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    background: var(--primary-soft);
    color: #ff6f8f;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.8rem;
}

.hero-badges span {
    padding: 0.8rem 1rem;
    border-radius: 999px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    font-size: 0.9rem;
}

.layout-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(320px, 0.9fr);
    gap: 1.5rem;
}

.watch-panel {
    padding: 1rem;
}

.player-shell {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    border-radius: 16px;
    background: #000;
}

.player-shell iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.video-meta {
    margin-top: 1rem;
    padding: 1.4rem;
}

.video-meta h2 {
    font-size: clamp(1.4rem, 2vw, 2rem);
    margin-bottom: 0.9rem;
}

.video-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--muted);
    margin-bottom: 1rem;
}

.description-box {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 14px;
    background: rgba(255,255,255,0.03);
}

.description-box summary {
    cursor: pointer;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.description-box p {
    color: var(--muted);
    white-space: pre-wrap;
    margin-bottom: 0;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.side-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.side-section {
    padding: 1.2rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.section-title h3 {
    margin: 0;
    font-size: 1.1rem;
}

.shorts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
}

.short-card,
.suggestion-card {
    text-decoration: none;
    color: inherit;
}

.short-card {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.short-card img {
    width: 100%;
    aspect-ratio: 9 / 16;
    object-fit: cover;
    border-radius: 14px;
    transition: transform 0.25s ease;
}

.short-card:hover img,
.suggestion-card:hover img {
    transform: scale(1.02);
}

.short-card span {
    font-size: 0.88rem;
    line-height: 1.3;
}

.suggestions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.suggestion-card {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 0.9rem;
    padding: 0.6rem;
    border-radius: 16px;
    transition: background 0.2s ease;
}

.suggestion-card:hover {
    background: rgba(255,255,255,0.04);
}

.thumb-wrap {
    position: relative;
}

.thumb-wrap img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 14px;
}

.duration {
    position: absolute;
    right: 0.6rem;
    bottom: 0.6rem;
    background: rgba(0,0,0,0.82);
    color: #fff;
    font-size: 0.75rem;
    padding: 0.2rem 0.45rem;
    border-radius: 8px;
}

.suggestion-content {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.suggestion-content strong {
    line-height: 1.35;
}

.suggestion-content small,
.muted {
    color: var(--muted);
}

.empty-state {
    padding: 4rem 2rem;
    text-align: center;
}

.empty-state i {
    font-size: 4rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.quick-id-form {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.quick-id-form input {
    width: 240px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.04);
    color: var(--text);
    padding: 0.8rem 1rem;
}

.site-footer {
    margin-top: 3rem;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--muted);
}

.site-footer a {
    color: #ff6f8f;
    text-decoration: none;
}

code {
    background: rgba(255,255,255,0.08);
    color: #ff6f8f;
    padding: 0.2rem 0.45rem;
    border-radius: 8px;
}

@media (max-width: 1200px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .suggestion-card {
        grid-template-columns: 1fr;
    }

    .shorts-grid {
        grid-template-columns: 1fr 1fr;
    }

    .quick-id-form {
        flex-direction: column;
        align-items: center;
    }

    .search-form {
        margin: 1rem 0;
    }
}