:root {
  --color-bg: #0d0d13;
  --color-surface: #16161f;
  --color-surface-2: #1e1e2a;
  --color-border: #2a2a38;
  --color-text: #f2f2f5;
  --color-muted: #9a9aa8;
  --color-accent: #7c5cff;
  --color-accent-2: #4cc9f0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.45);

  --duration-fast: 150ms;
  --duration-normal: 280ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  --space-section: clamp(2.5rem, 1.5rem + 4vw, 5rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.has-download-bar {
  padding-bottom: 76px;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 13, 19, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.brand-play {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #fff;
  font-size: 0.8rem;
}

.brand-name em {
  font-style: normal;
  color: var(--color-accent-2);
}

.site-nav {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--color-muted);
  font-size: 0.95rem;
  transition: color var(--duration-fast) ease, background var(--duration-fast) ease;
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.nav-link.is-active {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.header-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 10px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  transition: filter var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.header-action:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

/* ---------- Announcement ---------- */
.announcement {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 24px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
  color: #fff;
  font-size: 0.92rem;
  text-align: center;
}

.announcement[hidden] {
  display: none;
}

.announcement-close {
  font-size: 1.3rem;
  line-height: 1;
  opacity: 0.85;
  transition: opacity var(--duration-fast) ease;
}

.announcement-close:hover {
  opacity: 1;
}

/* ---------- Hero ---------- */
.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  padding-top: var(--space-section);
  padding-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(1.7rem, 1.2rem + 2.4vw, 2.8rem);
  letter-spacing: -0.02em;
  font-weight: 800;
}

.hero-sub {
  margin-top: 0.5rem;
  color: var(--color-muted);
  font-size: 1.05rem;
}

/* ---------- Hero CTA ---------- */
.hero-cta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: #fff;
  font-weight: 700;
  font-size: 1.02rem;
  box-shadow: 0 10px 28px rgba(124, 92, 255, 0.32);
  transition: transform var(--duration-fast) ease, filter var(--duration-fast) ease;
}

.btn-download:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn-download-icon {
  font-size: 1.1rem;
}

/* ---------- Grid ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
  border-color: #3a3a4e;
}

.card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}

.card-thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.card-thumb-img.is-loaded {
  opacity: 1;
}

.card-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent 45%);
}

.card-play {
  position: relative;
  z-index: 1;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  font-size: 1.1rem;
  opacity: 0;
  transform: scale(0.85);
  transition: opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out);
}

.card:hover .card-play {
  opacity: 1;
  transform: scale(1);
}

.card-duration {
  position: absolute;
  right: 10px;
  bottom: 10px;
  z-index: 1;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.75);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.card-body {
  padding: 14px;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.6em;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.card-views {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.card-views::before {
  content: "👁";
  font-size: 0.8rem;
}

.card-rating {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-accent-2);
  font-weight: 600;
}

.rating-bar {
  width: 54px;
  height: 5px;
  border-radius: 4px;
  background: var(--color-border);
  overflow: hidden;
}

.rating-bar > span {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.tag {
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--color-surface-2);
  color: var(--color-muted);
}

.tag.is-hot {
  background: rgba(255, 92, 92, 0.16);
  color: #ff6b6b;
}

.tag.is-new {
  background: rgba(76, 201, 240, 0.16);
  color: #4cc9f0;
}

.tag.is-vip {
  background: rgba(255, 196, 0, 0.16);
  color: #ffc400;
}

/* ---------- Footer of catalog ---------- */
.catalog-footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 36px 0 0;
}

.load-more {
  padding: 13px 34px;
  border-radius: 12px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.load-more:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.load-more[hidden] {
  display: none;
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: var(--space-section);
  padding: 28px 24px;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}

.modal-dialog {
  position: relative;
  width: min(720px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  animation: modal-in var(--duration-normal) var(--ease-out);
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  font-size: 1.4rem;
  line-height: 1;
  transition: background var(--duration-fast) ease;
}

.modal-close:hover {
  background: var(--color-accent);
}

.player {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 18px;
}

.player-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.player-lock {
  position: relative;
  z-index: 1;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  font-size: 1.7rem;
}

.modal-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.modal-gate {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.modal-gate p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* ---------- Download modal ---------- */
.modal-dialog-sm {
  width: min(400px, 100%);
  text-align: center;
}

.download-box {
  padding: 8px 4px 4px;
}

.download-icon {
  font-size: 2.6rem;
  margin-bottom: 12px;
}

.download-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.download-sub {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- Bottom download bar ---------- */
.download-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  background: rgba(22, 22, 31, 0.94);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  animation: bar-in var(--duration-normal) var(--ease-out);
}

.download-bar[hidden] {
  display: none;
}

@keyframes bar-in {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.download-bar-icon {
  font-size: 1.7rem;
}

.download-bar-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  line-height: 1.25;
}

.download-bar-info strong {
  font-size: 0.95rem;
  font-weight: 700;
}

.download-bar-info span {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.download-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border-radius: 10px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  transition: filter var(--duration-fast) ease;
}

.download-bar-btn:hover {
  filter: brightness(1.1);
}

.download-bar-close {
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-muted);
  transition: color var(--duration-fast) ease;
}

.download-bar-close:hover {
  color: var(--color-text);
}

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .site-nav {
    display: none;
  }

  .header-inner {
    gap: 12px;
  }

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 14px;
  }
}