:root {
  --bg-color: #f7f4ef;
  --surface-color: #ffffff;
  --surface-hover: #f3ece4;
  --primary-color: #c48b5f;
  --primary-hover: #b87748;
  --accent-color: #8ea88a;
  --text-main: #2f241d;
  --text-muted: #7b6a5d;
  --glass-bg: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(196, 139, 95, 0.18);
  --border-radius: 12px;
  --transition-speed: 0.3s;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--bg-color);
  background-image:
    radial-gradient(circle at 12% 10%, rgba(196, 139, 95, 0.18), transparent 30%),
    radial-gradient(circle at 90% 0%, rgba(142, 168, 138, 0.18), transparent 25%),
    linear-gradient(180deg, #faf7f2 0%, #f5f0ea 45%, #efe7df 100%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.logo span {
  color: var(--primary-color);
  background: linear-gradient(to right, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.search-bar {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.search-bar input {
  width: 100%;
  padding: 0.75rem 1rem;
  padding-left: 2.5rem;
  border-radius: 50px;
  border: 1px solid var(--glass-border);
  background-color: rgba(255, 255, 255, 0.92);
  color: var(--text-main);
  outline: none;
  transition: all var(--transition-speed);
}

.search-bar input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(196, 139, 95, 0.18);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.container {
  padding: 2rem;
  max-width: 1440px;
  margin: 0 auto;
}

.category-filters {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  scrollbar-width: none;
}

.category-filters::-webkit-scrollbar {
  display: none;
}

.chip {
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  background-color: var(--surface-color);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  white-space: nowrap;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-speed);
}

.chip:hover {
  background-color: var(--surface-hover);
}

.chip.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(196, 139, 95, 0.25);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.video-card {
  display: flex;
  flex-direction: column;
  background-color: var(--surface-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  text-decoration: none;
  border: 1px solid var(--glass-border);
  transition: transform var(--transition-speed), box-shadow var(--transition-speed);
  position: relative;
  box-shadow: 0 6px 18px rgba(0,0,0,0.05);
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 28px rgba(0,0,0,0.10);
}

.thumbnail-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background-color: #ddd;
}

.thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover .thumbnail {
  transform: scale(1.05);
}

.play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.video-card:hover .play-overlay {
  opacity: 1;
}

.play-icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.92);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  box-shadow: 0 4px 18px rgba(0,0,0,0.15);
}

.video-info {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.video-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tag-badge {
  background-color: rgba(196, 139, 95, 0.10);
  color: var(--primary-color);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.7rem;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 3rem;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-btn {
  background-color: var(--surface-color);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
  min-width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
}

.page-btn.active {
  background-color: var(--primary-color);
  color: white;
}

.video-player-container {
  max-width: 1100px;
  margin: 0 auto;
}

.player-wrapper,
.video-details {
  background: var(--surface-color);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.back-link {
  color: var(--text-muted);
  text-decoration: none;
}

.section-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }

  .container {
    padding: 1rem;
  }

  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
  }
}