:root {
  color-scheme: dark;
  --bg: #0f1116;
  --card: #161a22;
  --ink: #f4f1ec;
  --muted: #a7a2a0;
  --accent: #f28b3d;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --border: rgba(244, 241, 236, 0.08);
}

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

body {
  margin: 0;
  font-family: "DM Sans", "Figtree", system-ui, sans-serif;
  background: radial-gradient(circle at top, #1a1f2a 0%, #0f1116 55%, #0b0d12 100%);
  color: var(--ink);
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.page.detail {
  max-width: 1400px;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 24px;
  border-radius: 16px;
  background: rgba(17, 20, 28, 0.9);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.top-nav .brand {
  font-family: "Fraunces", "Iowan Old Style", serif;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.top-nav .links {
  display: inline-flex;
  gap: 14px;
}

.nav-search {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-search input {
  width: min(420px, 100%);
  background: #0f1219;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 14px;
  color: var(--ink);
  font-size: 0.95rem;
}

.top-nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.top-nav a:hover {
  border-color: var(--border);
  background: #0f1219;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 28px;
}

h1 {
  font-family: "Fraunces", "Iowan Old Style", serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.video-card {
  background: var(--card);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 55px rgba(31, 29, 26, 0.18);
}

.video-link {
  color: inherit;
  text-decoration: none;
  display: grid;
  grid-template-rows: auto 1fr;
}

.thumb {
  position: relative;
  background: #111;
  aspect-ratio: 16 / 9;
}

.preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  background: #111;
}

.duration {
  position: absolute;
  right: 10px;
  bottom: 10px;
  background: rgba(8, 10, 14, 0.85);
  color: #fff;
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: 999px;
}

.meta {
  padding: 14px 16px 18px;
  display: grid;
  gap: 6px;
}

.title {
  font-weight: 700;
  line-height: 1.25;
}

.uploader {
  font-size: 0.9rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.views {
  font-size: 0.9rem;
  color: var(--muted);
}

.author {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  overflow: hidden;
  flex: 0 0 auto;
  border: 1px solid rgba(31, 29, 26, 0.15);
  background: #fff;
}

.author img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.pagination {
  margin: 32px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  background: #11141c;
}

.page-link.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.page-link.nav {
  min-width: 70px;
}

.empty {
  padding: 40px;
  background: #11141c;
  border-radius: 18px;
  text-align: center;
}

.page.auth {
  max-width: 520px;
  margin: 0 auto;
  padding-top: 80px;
}

.auth-form {
  display: grid;
  gap: 16px;
  background: var(--card);
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.auth-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.auth-form input {
  background: #0f1219;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  color: var(--ink);
  font-size: 1rem;
}

.auth-form button {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  background: var(--accent);
  color: #0b0d12;
  font-weight: 700;
  cursor: pointer;
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(242, 139, 61, 0.1);
  border: 1px solid rgba(242, 139, 61, 0.35);
  color: var(--ink);
}

.back-link {
  display: inline-flex;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 16px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.player video {
  width: 100%;
  border-radius: 18px;
  background: #0b0d12;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  max-height: 78vh;
}

.video-shell {
  position: relative;
}

.sprite-preview {
  position: absolute;
  bottom: 48px;
  left: 0;
  transform: translateX(-50%);
  background: #0b0d12;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  pointer-events: none;
}

.sprite-preview img {
  display: block;
  width: 160px;
  height: 90px;
  object-fit: none;
  image-rendering: crisp-edges;
}

.info {
  background: var(--card);
  padding: 20px;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.info h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  margin: 0;
}

.stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.stat {
  padding: 6px 10px;
  border-radius: 999px;
  background: #10131a;
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

@media (max-width: 720px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

@media (min-width: 1200px) {
  .page.detail {
    padding-top: 40px;
  }

  .info {
    padding: 24px 26px;
  }
}