/* CineSpark Design System — Premium Cinema Experience */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-deep: #050409;
  --bg-card: #0d0a14;
  --bg-surface: #13101c;
  --bg-elevated: #1a1622;
  --accent: #c084fc;
  --accent-warm: #f97316;
  --accent-glow: rgba(192, 132, 252, 0.2);
  --accent-warm-glow: rgba(249, 115, 22, 0.12);
  --text-primary: #f5f3fa;
  --text-secondary: #a89fb6;
  --text-dim: #6b6578;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);
  --border-accent: rgba(192, 132, 252, 0.25);
  --danger: #ef4444;
  --success: #22c55e;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: linear-gradient(180deg, var(--bg-deep) 0%, #0a0810 100%);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--text-primary); }

/* Grain overlay */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* ==================== NAVIGATION ==================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(5, 4, 9, 0.7);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-brand .spark {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-warm) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.2s;
  font-weight: 400;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
}

.nav-links a.active {
  color: var(--accent);
  background: var(--accent-glow);
}

.nav-links .btn-upload {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-warm) 100%);
  color: #fff !important;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border-radius: 8px;
  margin-left: 0.5rem;
}
.nav-links .btn-upload:hover {
  opacity: 0.9;
}

/* ==================== LAYOUT ==================== */
.page-content {
  padding-top: 96px;
  padding-bottom: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 2rem;
  padding-right: 2rem;
  min-height: 100vh;
}

.page-header {
  margin-bottom: 2.5rem;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 300;
}

/* ==================== FILM GRID ==================== */
.film-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.film-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  cursor: pointer;
  display: block;
  color: inherit;
  position: relative;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 1px rgba(192, 132, 252, 0.1);
}

.film-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-12px) scale(1.03);
  box-shadow: 0 24px 64px rgba(192, 132, 252, 0.25), 0 0 32px rgba(249, 115, 22, 0.1);
  color: inherit;
}

.film-card .thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background: linear-gradient(135deg, #1a1028 0%, #0f0a16 100%);
  overflow: hidden;
  filter: brightness(0.95);
}

.film-card .thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.film-card .thumbnail .play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.6) 100%);
  opacity: 0;
  transition: opacity 0.35s, background 0.35s;
}

.film-card:hover .play-overlay {
  opacity: 1;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.75) 100%);
}

.play-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(192, 132, 252, 0.9), rgba(249, 115, 22, 0.7));
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.6rem;
  box-shadow: 0 16px 48px rgba(192, 132, 252, 0.4), 0 0 32px rgba(192, 132, 252, 0.2);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.film-card:hover .play-icon {
  transform: scale(1.15);
}

.film-card .thumbnail .no-thumb {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  opacity: 0.2;
}

.film-card .card-body {
  padding: 1rem 1.25rem 1.25rem;
}

.film-card .card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.015em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #fff;
}

.film-card .card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.film-card .card-creator {
  color: var(--text-secondary);
  font-weight: 400;
}

.film-card .card-views {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* ==================== SORT BAR ==================== */
.sort-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.sort-bar button {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
  font-family: 'DM Sans', sans-serif;
}

.sort-bar button:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
}

.sort-bar button.active {
  background: var(--accent-glow);
  border-color: rgba(192, 132, 252, 0.3);
  color: var(--accent);
}

/* ==================== EMPTY STATE ==================== */
.empty-state {
  text-align: center;
  padding: 6rem 2rem;
}

.empty-state .icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  opacity: 0.3;
}

.empty-state h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.empty-state p {
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 400px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-family: 'DM Sans', sans-serif;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-warm) 100%);
  color: #fff;
}
.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--border-hover);
}

.btn-ghost {
  background: none;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
}
.btn-ghost:hover { color: var(--text-primary); }

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  font-family: 'Space Grotesk', sans-serif;
}

.form-group .required {
  color: var(--accent-warm);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  transition: border-color 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: rgba(192, 132, 252, 0.4);
  box-shadow: 0 0 0 3px rgba(192, 132, 252, 0.08);
}

.form-input::placeholder {
  color: var(--text-dim);
}

textarea.form-input {
  resize: vertical;
  min-height: 100px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.35rem;
}

/* ==================== FILE UPLOAD ==================== */
.file-upload-area {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  background: var(--bg-deep);
}

.file-upload-area:hover,
.file-upload-area.dragover {
  border-color: var(--accent);
  background: rgba(192, 132, 252, 0.03);
}

.file-upload-area .upload-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.file-upload-area .upload-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.file-upload-area .upload-hint {
  color: var(--text-dim);
  font-size: 0.75rem;
}

.file-upload-area .file-selected {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: center;
  color: var(--accent);
  font-weight: 500;
}

.file-upload-area .file-selected .file-size {
  color: var(--text-dim);
  font-weight: 300;
  font-size: 0.85rem;
}

/* ==================== PROGRESS BAR ==================== */
.progress-container {
  display: none;
  margin-top: 1.5rem;
}

.progress-container.visible {
  display: block;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background: var(--bg-deep);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-warm));
  border-radius: 3px;
  width: 0%;
  transition: width 0.3s;
}

.progress-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.5rem;
  text-align: center;
}

/* ==================== VIDEO PLAYER ==================== */
.video-container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto 3rem;
  border-radius: 16px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 16/9;
  box-shadow:
    0 0 60px rgba(192, 132, 252, 0.15),
    0 0 120px rgba(249, 115, 22, 0.08),
    0 32px 80px rgba(0, 0, 0, 0.8);
  position: relative;
}

.video-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(135deg, rgba(192, 132, 252, 0.08) 0%, transparent 50%, rgba(249, 115, 22, 0.06) 100%),
    radial-gradient(ellipse 800px 400px at 50% -50%, rgba(192, 132, 252, 0.1) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

.video-container video {
  width: 100%;
  height: 100%;
  display: block;
}

.film-info {
  max-width: 960px;
  margin: 0 auto;
}

.film-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  background: linear-gradient(180deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.film-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.film-meta .creator {
  font-weight: 500;
  color: var(--text-primary);
}

.film-meta .views,
.film-meta .date {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.film-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  font-weight: 300;
  max-width: 720px;
}

.film-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.tag.tool-tag {
  background: var(--accent-warm-glow);
  color: var(--accent-warm);
}

/* ==================== ALERTS ==================== */
.alert {
  padding: 1rem 1.25rem;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  display: none;
}

.alert.visible { display: block; }

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  color: #86efac;
}

/* ==================== LOADING ==================== */
.loading {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-dim);
}

.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.film-card {
  animation: fadeInUp 0.6s ease-out backwards;
}

.film-card:nth-child(1) { animation-delay: 0.05s; }
.film-card:nth-child(2) { animation-delay: 0.1s; }
.film-card:nth-child(3) { animation-delay: 0.15s; }
.film-card:nth-child(n+4) { animation-delay: calc(0.05s * (var(--index, 1) % 6)); }

/* ==================== FOOTER ==================== */
.site-footer {
  padding: 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

.site-footer .brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.site-footer .sub {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.3rem;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
  .film-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav { padding: 0 1rem; }
  .nav-links a { padding: 0.4rem 0.75rem; font-size: 0.85rem; }
  .page-content { padding-left: 1rem; padding-right: 1rem; padding-top: 80px; }

  .film-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .page-header h1 { font-size: 1.75rem; }
  .page-header p { font-size: 0.95rem; }
}

@media (max-width: 480px) {
  .page-header h1 { font-size: 1.5rem; }
  .nav-brand { font-size: 1rem; }

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