:root {
  --bg: #0b0d12;
  --bg-gradient: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(108, 140, 255, 0.18), transparent);
  --surface: #141820;
  --surface-elevated: #1c2230;
  --border: #2a3142;
  --text: #f0f2f5;
  --muted: #9aa3b5;
  --accent: #6c8cff;
  --accent-hover: #5577ee;
  --accent-soft: rgba(108, 140, 255, 0.14);
  --success: #34c759;
  --success-soft: rgba(52, 199, 89, 0.14);
  --error: #ff5c5c;
  --error-soft: rgba(255, 92, 92, 0.14);
  --warning: #ffd60a;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
  --max-width: 1100px;
}

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

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.page-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

/* ── Animated background ── */
.bg-animation {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  will-change: transform;
}

.bg-orb-1 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(108, 140, 255, 0.55) 0%, transparent 70%);
  top: -12%;
  left: -8%;
  animation: float-orb-1 22s ease-in-out infinite;
}

.bg-orb-2 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(138, 100, 255, 0.4) 0%, transparent 70%);
  top: 35%;
  right: -10%;
  animation: float-orb-2 28s ease-in-out infinite;
}

.bg-orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(52, 199, 89, 0.2) 0%, transparent 70%);
  bottom: -8%;
  left: 30%;
  animation: float-orb-3 25s ease-in-out infinite;
}

.bg-mesh {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108, 140, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 140, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 75%);
  animation: mesh-drift 40s linear infinite;
}

@keyframes float-orb-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(60px, 40px) scale(1.08); }
  66% { transform: translate(30px, 80px) scale(0.95); }
}

@keyframes float-orb-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-50px, 60px) scale(1.05); }
  66% { transform: translate(-80px, -30px) scale(0.92); }
}

@keyframes float-orb-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(70px, -50px) scale(1.1); }
}

@keyframes mesh-drift {
  0% { background-position: 0 0; }
  100% { background-position: 48px 48px; }
}

@media (prefers-reduced-motion: reduce) {
  .bg-orb,
  .bg-mesh { animation: none; }
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* ── Header ── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(20, 24, 32, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0.9rem 0;
  margin-bottom: 2.5rem;
}

.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span { color: var(--accent); }

.app-nav { display: flex; gap: 0.35rem; }

.nav-link {
  color: var(--muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}

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

/* ── Page layout ── */
.page-header { margin-bottom: 2rem; }

.page-header h1 {
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.page-header .lead { color: var(--muted); font-size: 1.05rem; max-width: 600px; }

.page-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 1.5rem;
  align-items: start;
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card h2, .card h3 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 1rem;
  font-weight: 600;
}

.feature-list { display: grid; gap: 0.75rem; }

.feature-item {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  background: var(--surface-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.feature-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.feature-item strong { display: block; font-size: 0.95rem; margin-bottom: 0.15rem; }
.feature-item span { color: var(--muted); font-size: 0.88rem; }

/* ── Forms ── */
.form-card { display: flex; flex-direction: column; gap: 1.1rem; }

.form-group { display: flex; flex-direction: column; gap: 0.45rem; }

.form-group label {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text);
}

.form-group label .required { color: var(--error); margin-left: 0.15rem; }

.form-group input,
.form-group select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.8rem 1rem;
  color: var(--text);
  font-size: 0.95rem;
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239aa3b5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-group input::placeholder { color: #5a6278; }

/* Custom file input */
.file-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.file-input-wrap:hover { border-color: var(--accent); background: var(--accent-soft); }

.file-input-wrap input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
}

.file-input-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.file-input-btn {
  background: var(--accent);
  color: #fff;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.file-input-name { color: var(--muted); font-size: 0.88rem; }

.form-hint {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  padding: 0.75rem 1rem;
  background: var(--surface-elevated);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.form-hint a { color: var(--accent); font-weight: 500; }

.asset-preview {
  width: 100%;
  border-radius: var(--radius-sm);
  background: #000;
  border: 1px solid var(--border);
  max-height: 180px;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.8rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #8aa4ff);
  color: #fff;
  box-shadow: 0 4px 16px rgba(108, 140, 255, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--accent-hover), #7a96ff);
  box-shadow: 0 6px 20px rgba(108, 140, 255, 0.45);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--muted); background: var(--surface-elevated); }

.btn-ghost { background: var(--surface-elevated); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--muted); }

.btn-danger { background: var(--error-soft); color: var(--error); border: 1px solid rgba(255, 92, 92, 0.35); }
.btn-danger:hover { background: rgba(255, 92, 92, 0.22); }

.btn-block { width: 100%; }

/* ── Alerts ── */
.messages { margin-bottom: 1.25rem; display: grid; gap: 0.6rem; }

.alert {
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.92rem;
}

.alert-success { background: var(--success-soft); border-color: rgba(52, 199, 89, 0.35); color: var(--success); }
.alert-error { background: var(--error-soft); border-color: rgba(255, 92, 92, 0.35); color: var(--error); }
.alert-info { background: var(--accent-soft); border-color: rgba(108, 140, 255, 0.35); color: var(--accent); }

/* ── Progress ── */
.progress-bar {
  background: var(--border);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
  margin: 1rem 0;
}

.progress-fill {
  background: linear-gradient(90deg, var(--accent), #8aa4ff);
  height: 100%;
  border-radius: 999px;
  transition: width 0.4s ease;
}

/* ── Video / asset grids ── */
.video-player, .preview-video {
  width: 100%;
  border-radius: var(--radius-sm);
  background: #000;
  border: 1px solid var(--border);
  display: block;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  border-radius: var(--radius-sm);
  background: var(--surface-elevated);
  border: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 1rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.video-card, .asset-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.video-card:hover, .asset-card:hover {
  border-color: rgba(108, 140, 255, 0.35);
  box-shadow: var(--shadow);
}

.video-card-header, .asset-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.video-card h3, .asset-card h3 { font-size: 1.05rem; letter-spacing: -0.01em; }

.badge {
  font-size: 0.68rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.badge-pending, .badge-processing_portrait, .badge-processing_video,
.badge-processing_trim, .badge-processing_merge { background: rgba(255, 214, 10, 0.15); color: var(--warning); }
.badge-completed, .badge-active { background: var(--success-soft); color: var(--success); }
.badge-failed { background: var(--error-soft); color: var(--error); }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

.card-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
.inline-form { display: inline; }

.empty-state {
  text-align: center;
  padding: 3.5rem 2rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  margin-top: 1.5rem;
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  opacity: 0.4;
}

.status-layout { max-width: 760px; margin: 0 auto; }

.upload-card .upload-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: end;
}

@media (max-width: 860px) {
  .page-layout { grid-template-columns: 1fr; }
  .upload-card .upload-row { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; align-items: flex-start; }
}