/* ═══════════════════════════════════════════════════
   AI Film Studio — Dark Production Theme
═══════════════════════════════════════════════════ */

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

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111117;
  --bg-panel: #13131a;
  --bg-card: #1a1a24;
  --bg-hover: #1f1f2e;
  --bg-input: #16161f;

  --accent: #e63946;
  --accent-dim: #c1121f;
  --accent-glow: rgba(230, 57, 70, 0.15);

  --gold: #f4a261;
  --gold-dim: #e07b39;
  --green: #2a9d8f;
  --green-bright: #4cc9b0;
  --blue: #457b9d;
  --blue-bright: #74b3d5;

  --text-primary: #e8e8f0;
  --text-secondary: #9090a0;
  --text-muted: #55556a;
  --text-accent: #f4a261;

  --border: #1e1e2e;
  --border-subtle: #15151f;

  --pending: #55556a;
  --active: #f4a261;
  --approved: #2a9d8f;
  --awaiting: #74b3d5;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.6);

  --font: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --panel-left: 220px;
  --panel-right: 380px;
  --topbar-height: 52px;
}

html, body {
  height: 100%;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Views ──────────────────────────────────────── */
.view { display: none; }
.view.active { display: flex; flex-direction: column; height: 100vh; overflow: hidden; }

/* ══════════════════════════════════════════════════
   DASHBOARD
══════════════════════════════════════════════════ */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: var(--topbar-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header-left { display: flex; align-items: center; gap: 24px; }

.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon {
  color: var(--accent);
  font-size: 18px;
}
.logo-text {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}
.tagline {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dashboard-main {
  flex: 1;
  overflow-y: auto;
  padding: 32px;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.section-header h2 { font-size: 20px; font-weight: 600; }
.count-badge {
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

/* Project Card */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.project-card:hover {
  border-color: var(--accent);
  background: var(--bg-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.project-card-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.project-card-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.project-card-pipeline {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
}
.pipeline-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--pending);
}
.pipeline-dot.active { background: var(--active); }
.pipeline-dot.approved { background: var(--approved); }
.pipeline-dot.awaiting { background: var(--awaiting); }

.project-card-progress {
  font-size: 12px;
  color: var(--text-secondary);
}
.project-card-delete {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  font-size: 16px;
  opacity: 0;
  transition: opacity 0.2s;
}
.project-card:hover .project-card-delete { opacity: 1; }
.project-card-delete:hover { color: var(--accent); }

/* ── Card internals ────────────────────────────────── */
.pcard-top {
  padding-right: 28px;
  margin-bottom: 16px;
}
.pcard-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 5px;
}
.pcard-genre {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(229,92,68,0.12);
  border: 1px solid rgba(229,92,68,0.25);
  border-radius: 4px;
  padding: 1px 6px;
}
.pcard-date {
  font-size: 11px;
  color: var(--text-muted);
}

/* Mini step pipeline inside card */
.pcs-pipeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 14px;
}
.pcs-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  flex: 0 0 auto;
}
.pcs-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--pending);
  border: 2px solid var(--border);
  flex-shrink: 0;
  transition: background 0.2s;
}
.pcs-dot.approved  { background: var(--approved); border-color: var(--approved); }
.pcs-dot.active    { background: var(--active);   border-color: var(--active);
                     box-shadow: 0 0 0 3px rgba(244,162,97,0.2); }
.pcs-dot.awaiting  { background: var(--awaiting); border-color: var(--awaiting); }
.pcs-label {
  font-size: 9px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.2;
  max-width: 52px;
  word-wrap: break-word;
}
.pcs-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin-top: 4px;   /* align with dot center */
  min-width: 8px;
  transition: background 0.2s;
}
.pcs-line.approved { background: var(--approved); }

/* Status badge at card bottom */
.pcard-status {
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 20px;
  display: inline-block;
}
.pcard-status.pending    { background: var(--bg-input); color: var(--text-muted); }
.pcard-status.active     { background: rgba(244,162,97,0.12); color: var(--active); }
.pcard-status.awaiting   { background: rgba(116,179,213,0.12); color: var(--awaiting); }
.pcard-status.approved   { background: rgba(42,157,143,0.12); color: var(--green-bright); }
.pcard-status.generating { background: rgba(244,162,97,0.12); color: var(--active); animation: pulse 1.4s ease-in-out infinite; }

/* Pipeline "Generating…" badge */
.step-status-badge.generating {
  background: rgba(244,162,97,0.15);
  color: var(--active);
  animation: pulse 1.4s ease-in-out infinite;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 40px;
  color: var(--text-secondary);
}
.empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-primary); }
.empty-state p { margin-bottom: 24px; }

/* ══════════════════════════════════════════════════
   STUDIO VIEW
══════════════════════════════════════════════════ */
.studio-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  height: var(--topbar-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}
.back-btn:hover { border-color: var(--accent); color: var(--text-primary); }

.project-title {
  font-size: 16px;
  font-weight: 600;
  flex: 1;
}
.project-meta {
  font-size: 12px;
  color: var(--text-muted);
}
.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid var(--green);
  color: var(--green-bright);
  background: rgba(42,157,143,0.08);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn-export:hover {
  background: rgba(42,157,143,0.18);
}

/* ZIP button inside output files panel */
.btn-zip-download {
  margin-left: auto;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid var(--green);
  color: var(--green-bright);
  background: rgba(42,157,143,0.1);
  text-decoration: none;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-zip-download:hover { background: rgba(42,157,143,0.22); }

/* 3-panel layout */
.studio-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Pipeline Panel (Left) ─────────────────────── */
.pipeline-panel {
  width: var(--panel-left);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
}
.pipeline-title {
  padding: 16px 16px 8px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}
.pipeline-steps {
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pipeline-step-btn {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  background: none;
  text-align: left;
  width: 100%;
}
.pipeline-step-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--border);
}
.pipeline-step-btn.current {
  background: var(--accent-glow);
  border-color: var(--accent);
}
.pipeline-step-btn:disabled { cursor: default; opacity: 0.5; }

.step-indicator {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
  transition: all 0.2s;
  border: 2px solid var(--border);
  background: var(--bg-panel);
  color: var(--text-muted);
}
.step-indicator.pending { border-color: var(--border); color: var(--text-muted); }
.step-indicator.in_progress, .step-indicator.awaiting_approval {
  border-color: var(--active);
  color: var(--active);
  animation: pulse-border 2s infinite;
}
.step-indicator.approved {
  background: var(--approved);
  border-color: var(--approved);
  color: white;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244, 162, 97, 0.3); }
  50% { box-shadow: 0 0 0 4px rgba(244, 162, 97, 0); }
}

.step-info { flex: 1; min-width: 0; }
.step-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.step-sublabel {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 1px;
}
.step-status-badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  font-weight: 500;
  white-space: nowrap;
}
.step-status-badge.pending { background: var(--bg-panel); color: var(--text-muted); }
.step-status-badge.in_progress { background: rgba(244,162,97,0.15); color: var(--active); }
.step-status-badge.awaiting_approval { background: rgba(116,179,213,0.15); color: var(--blue-bright); }
.step-status-badge.approved { background: rgba(42,157,143,0.15); color: var(--green-bright); }

.step-start-action {
  margin-left: 38px;
  margin-top: 4px;
  margin-bottom: 8px;
}
.btn-start-step {
  font-size: 11px;
  padding: 4px 10px;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-start-step:hover { background: var(--accent); color: white; }

.pipeline-connector {
  width: 2px;
  height: 8px;
  background: var(--border);
  margin-left: 24px;
}

/* ── Chat Panel (Center) ───────────────────────── */
.chat-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.agent-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--gold));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}
.agent-info { flex: 1; }
.agent-name { font-size: 14px; font-weight: 600; }
.agent-subtitle { font-size: 11px; color: var(--text-muted); }
.step-badge {
  font-size: 11px;
  padding: 3px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
  min-height: 0;
}
/* When concept screen is shown, collapse chat messages */
.chat-panel.concept-mode .chat-messages {
  display: none;
}
.chat-panel.concept-mode .concept-input-screen {
  display: flex !important;
}
.chat-panel.concept-mode .chat-input-area {
  display: none !important;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-track { background: transparent; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.chat-welcome {
  text-align: center;
  padding: 60px 40px;
  color: var(--text-secondary);
}
.welcome-icon { font-size: 40px; margin-bottom: 12px; }
.chat-welcome h3 { font-size: 18px; color: var(--text-primary); margin-bottom: 8px; }

/* Messages */
.message {
  display: flex;
  gap: 10px;
  max-width: 100%;
  animation: fadeInUp 0.2s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.message.user {
  flex-direction: row-reverse;
}
.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.message.agent .message-avatar {
  background: linear-gradient(135deg, var(--accent), var(--gold));
  color: white;
}
.message.user .message-avatar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.message-bubble {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.7;
}
.message.agent .message-bubble {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top-left-radius: 2px;
  color: var(--text-primary);
}
.message.user .message-bubble {
  background: var(--accent-glow);
  border: 1px solid rgba(230, 57, 70, 0.3);
  border-top-right-radius: 2px;
  color: var(--text-primary);
}

/* Markdown inside message bubbles */
.message-bubble h1,
.message-bubble h2,
.message-bubble h3 {
  color: var(--gold);
  margin-top: 12px;
  margin-bottom: 6px;
  font-weight: 600;
}
.message-bubble h1 { font-size: 15px; }
.message-bubble h2 { font-size: 14px; }
.message-bubble h3 { font-size: 13px; }
.message-bubble p { margin-bottom: 8px; }
.message-bubble p:last-child { margin-bottom: 0; }
.message-bubble ul, .message-bubble ol {
  padding-left: 20px;
  margin-bottom: 8px;
}
.message-bubble li { margin-bottom: 4px; }
.message-bubble strong { color: var(--gold); font-weight: 600; }
.message-bubble em { color: var(--blue-bright); }
.message-bubble code {
  background: var(--bg-input);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.message-bubble pre {
  background: var(--bg-input);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 8px 0;
}
.message-bubble hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 12px 0;
}
.message-bubble blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--text-secondary);
  margin: 8px 0;
}
.message-bubble table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin: 8px 0;
}
.message-bubble th {
  background: var(--bg-input);
  padding: 6px 10px;
  text-align: left;
  color: var(--gold);
  border: 1px solid var(--border);
}
.message-bubble td {
  padding: 6px 10px;
  border: 1px solid var(--border);
}
.message-bubble tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* Streaming bubble — plain text during stream, markdown after done */
.streaming-plain {
  white-space: pre-wrap;
  font-size: 13.5px;
  line-height: 1.7;
  min-height: 20px;
}
/* After done, streaming-plain class is removed and full markdown kicks in */

/* Document notification in chat */
.doc-notification {
  background: rgba(42, 157, 143, 0.1);
  border: 1px solid rgba(42, 157, 143, 0.3);
  border-radius: var(--radius);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--green-bright);
  margin-top: 8px;
}
.doc-notification-icon { font-size: 16px; }

/* Typing indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  font-size: 12px;
  color: var(--text-muted);
}
.typing-dot {
  width: 6px;
  height: 6px;
  background: var(--text-muted);
  border-radius: 50%;
  animation: typing 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* ── Concept Input Screen ──────────────────────── */
.concept-input-screen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  overflow-y: auto;
  background: var(--bg-primary);
}

.concept-prompt {
  width: 100%;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.concept-prompt-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.concept-film-icon { font-size: 20px; }

.concept-textarea {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 14px;
  padding: 16px 18px;
  resize: vertical;
  min-height: 120px;
  line-height: 1.7;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.concept-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
}
.concept-textarea::placeholder {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.8;
}

.concept-examples-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.concept-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.concept-chip {
  font-size: 12px;
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}
.concept-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.concept-submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  align-self: flex-end;
}
.concept-submit-btn:hover { background: var(--accent-dim); transform: translateX(2px); }
.concept-submit-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Chat input */
.chat-input-area {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  align-items: flex-end;
}
.chat-textarea {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 13.5px;
  padding: 10px 14px;
  resize: none;
  max-height: 160px;
  overflow-y: auto;
  transition: border-color 0.2s;
  line-height: 1.5;
}
.chat-textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.chat-textarea::placeholder { color: var(--text-muted); }
.chat-textarea:disabled { opacity: 0.4; }

.send-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
  flex-shrink: 0;
}
.send-btn:hover:not(:disabled) { background: var(--accent-dim); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Document Panel (Right) ────────────────────── */
.doc-panel {
  width: var(--panel-right);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
}
.doc-panel-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.doc-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.doc-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.doc-tab {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.15s;
  font-family: var(--font-mono);
}
.doc-tab.active {
  background: var(--accent-glow);
  border-color: var(--accent);
  color: var(--accent);
}
.doc-tab:hover:not(.active) {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.doc-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}
.doc-content::-webkit-scrollbar { width: 4px; }
.doc-content::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.doc-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.doc-empty-icon { font-size: 32px; margin-bottom: 12px; }

/* Document markdown styles */
.doc-markdown {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-primary);
}
.doc-markdown h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.doc-markdown h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 16px;
  margin-bottom: 8px;
}
.doc-markdown h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-bright);
  margin-top: 12px;
  margin-bottom: 6px;
}
.doc-markdown p { margin-bottom: 10px; }
.doc-markdown ul, .doc-markdown ol {
  padding-left: 20px;
  margin-bottom: 10px;
}
.doc-markdown li { margin-bottom: 4px; }
.doc-markdown strong { color: var(--gold); font-weight: 600; }
.doc-markdown em { color: var(--blue-bright); font-style: italic; }
.doc-markdown code {
  background: var(--bg-input);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green-bright);
}
.doc-markdown pre {
  background: var(--bg-input);
  padding: 12px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 10px 0;
  font-size: 12px;
}
.doc-markdown hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}
.doc-markdown blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 12px;
  color: var(--text-secondary);
  margin: 10px 0;
  font-style: italic;
}
.doc-markdown table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin: 10px 0;
}
.doc-markdown th {
  background: var(--bg-input);
  padding: 6px 10px;
  text-align: left;
  color: var(--gold);
  border: 1px solid var(--border);
  font-weight: 600;
}
.doc-markdown td {
  padding: 6px 10px;
  border: 1px solid var(--border);
}
.doc-markdown tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

/* Live streaming doc */
.doc-streaming {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-bright);
  background: var(--bg-input);
  padding: 12px;
  border-radius: 6px;
  white-space: pre-wrap;
  line-height: 1.6;
  border: 1px solid rgba(42,157,143,0.2);
}
.cursor-blink::after {
  content: '▌';
  animation: blink 1s infinite;
}
@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Document Actions */
.doc-actions {
  border-top: 1px solid var(--border);
  padding: 16px;
  background: var(--bg-panel);
  flex-shrink: 0;
}
.approval-header {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.approval-buttons {
  display: flex;
  gap: 8px;
}
.btn-approve {
  flex: 1;
  background: rgba(42,157,143,0.15);
  border: 1px solid var(--green);
  color: var(--green-bright);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-approve:hover { background: var(--green); color: white; }

.btn-revise {
  flex: 1;
  background: rgba(116,179,213,0.1);
  border: 1px solid var(--blue);
  color: var(--blue-bright);
  padding: 9px 12px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-revise:hover { background: var(--blue); color: white; }

.revision-input { margin-top: 12px; }
.revision-input textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 13px;
  padding: 10px 12px;
  resize: vertical;
  min-height: 80px;
}
.revision-input textarea:focus { outline: none; border-color: var(--accent); }

/* ══════════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: var(--font);
}
.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-dim); }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--text-muted); color: var(--text-primary); }
.btn-danger {
  background: #c0392b;
  color: white;
  border-color: #c0392b;
}
.btn-danger:hover { background: #a93226; }

/* ══════════════════════════════════════════════════
   MODAL
══════════════════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 480px;
  max-width: 95vw;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 4px;
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }
.modal-body { padding: 20px 24px; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
}

/* Form */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 15px;
  padding: 10px 14px;
  transition: border-color 0.2s;
}
.form-input:focus { outline: none; border-color: var(--accent); }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* Workflow preview */
.workflow-preview {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.workflow-preview-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.workflow-steps-preview { display: flex; flex-direction: column; }
.ws-step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}
.ws-num {
  width: 20px;
  height: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.ws-step span:nth-child(2) { font-size: 13px; font-weight: 500; }
.ws-agent { font-size: 11px; color: var(--text-muted); margin-left: auto; }
.ws-arrow {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  margin-left: 10px;
  line-height: 1;
}

/* ══════════════════════════════════════════════════
   TOAST
══════════════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: 13px;
  box-shadow: var(--shadow);
  z-index: 9999;
  animation: toastIn 0.2s ease;
  max-width: 320px;
}
.toast.success { border-color: var(--green); color: var(--green-bright); }
.toast.error { border-color: var(--accent); color: #ff6b7a; }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════
   APPROVED STEP OVERLAY IN CHAT
══════════════════════════════════════════════════ */
.step-approved-banner {
  background: rgba(42,157,143,0.1);
  border: 1px solid rgba(42,157,143,0.3);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--green-bright);
}

/* ══════════════════════════════════════════════════
   DOCUMENT WRITE CHIPS (in agent bubble)
══════════════════════════════════════════════════ */
.doc-write-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 6px 0 2px;
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-family: var(--font-mono);
  border: 1px solid var(--border);
  background: var(--bg-input);
}
.doc-write-chip.writing {
  border-color: var(--active);
  color: var(--active);
}
.doc-write-chip.done {
  border-color: var(--approved);
  color: var(--green-bright);
  background: rgba(42,157,143,0.08);
}
.bg-working {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--active);
  animation: pulse 1.5s ease-in-out infinite;
}
.bg-indicator-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 5px;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.dwc-spinner {
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.dwc-icon { font-size: 12px; }
.dwc-name { font-weight: 500; }
.dwc-status { opacity: 0.7; font-size: 11px; }

/* ══════════════════════════════════════════════════
   OUTPUT FILES PANEL
══════════════════════════════════════════════════ */
.output-files-panel {
  border-top: 1px solid var(--border);
  padding: 14px 16px;
  background: var(--bg-panel);
  flex-shrink: 0;
}
.output-files-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--green-bright);
  margin-bottom: 6px;
}
.output-files-icon { font-size: 14px; }
.output-files-path {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  word-break: break-all;
  margin-bottom: 10px;
  padding: 4px 8px;
  background: var(--bg-input);
  border-radius: 4px;
  border: 1px solid var(--border);
}
.output-files-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.output-file-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 12px;
  transition: border-color 0.15s, background 0.15s;
}
.output-file-link:hover {
  border-color: var(--green);
  background: rgba(42,157,143,0.08);
  color: var(--green-bright);
}
.file-icon { font-size: 14px; }
.file-name { flex: 1; font-family: var(--font-mono); }
.file-size { color: var(--text-muted); font-size: 10px; }

/* Scrollbar global */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ══════════════════════════════════════════════════════════
   REFERENCE IMAGE GALLERY (Stage 8)
══════════════════════════════════════════════════════════ */

.ref-gallery-header {
  padding: 12px 16px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.ref-stats {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.ref-stat { color: var(--text-secondary); }
.ref-stat-sep { opacity: 0.4; }
.ref-stat-error { color: var(--red, #ff6b7a); }
.ref-progress-bar-wrap {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  margin-bottom: 12px;
}
.ref-progress-bar {
  height: 100%;
  background: var(--green);
  border-radius: 2px;
  transition: width 0.4s;
}
.ref-gallery-actions {
  padding: 0 16px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ref-workflow-guide {
  font-size: 12px;
  color: var(--text-muted);
  flex: 1;
}
.ref-workflow-guide strong {
  color: var(--text-secondary);
}
.ref-generating-indicator {
  font-size: 12px;
  color: var(--green-bright);
  animation: pulse 1.5s infinite;
}
.ref-gallery-groups {
  padding: 0 12px 16px;
  overflow-y: auto;
  flex: 1;
}
.ref-group { margin-bottom: 20px; }
.ref-group-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
  padding: 0 4px;
}
.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.ref-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s;
}
.ref-card:hover { border-color: var(--text-muted); }
.ref-card.ref-approved { border-color: var(--green); background: rgba(42,157,143,0.06); }
.ref-img-wrap {
  width: 100%;
  aspect-ratio: 1;
  overflow: hidden;
  cursor: pointer;
  position: relative;
}
.ref-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.2s;
}
.ref-img:hover { opacity: 0.85; }
.ref-img-error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: var(--bg-tertiary);
}
.ref-img-placeholder {
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-muted);
  background: var(--bg-tertiary);
}
.ref-img-placeholder.ref-generating { color: var(--green-bright); }
.ref-img-placeholder.ref-error { color: var(--red, #ff6b7a); }
.ref-img-placeholder.ref-pending { color: var(--border); }
.ref-card-name {
  font-size: 10px;
  color: var(--text-muted);
  padding: 4px 6px;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ref-card-actions {
  display: flex;
  border-top: 1px solid var(--border);
}
.ref-btn {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 12px;
  transition: background 0.15s, color 0.15s;
}
.ref-btn:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.ref-btn-approve:hover, .ref-btn-approve.active { color: var(--green); }
.ref-btn-reject:hover { color: var(--red, #ff6b7a); }
.ref-btn + .ref-btn { border-left: 1px solid var(--border); }

/* ── Stage 8: New Tabbed Reference Gallery v2 ───────────────────────────── */
.ref-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  padding: 10px 0 6px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.ref-tab-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 500;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.ref-tab-btn:hover { color: var(--text-primary); border-color: var(--accent); }
.ref-tab-btn.active {
  background: rgba(99,102,241,0.12);
  border-color: var(--accent);
  color: var(--accent);
}
.ref-tab-count {
  font-size: 10px;
  padding: 1px 5px;
  border-radius: 10px;
  background: var(--bg-tertiary);
  color: var(--text-muted);
}
.ref-tab-btn.active .ref-tab-count {
  background: rgba(99,102,241,0.2);
  color: var(--accent);
}

.ref-tab-content { display: none; }
.ref-tab-content.active { display: block; }

.ref-section {
  margin-bottom: 20px;
}
.ref-section-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}
.ref-section-header-global {
  border-bottom: none;
  margin-bottom: 4px;
  padding-top: 0;
}
.ref-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex: 1;
}

.ref-grid-v2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 10px;
}

.ref-card-v2 {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.2s;
}
.ref-card-v2:hover { border-color: var(--accent); }
.ref-card-v2.ref-card-done   { border-color: rgba(74,222,128,0.2); }
.ref-card-v2.ref-card-error  { border-color: rgba(255,107,122,0.3); }
.ref-card-v2.ref-approved    { border-color: var(--green, #4ade80); }

.ref-card-v2-status {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  z-index: 1;
}
.ref-status-pending    { background: var(--border); }
.ref-status-generating { background: #818cf8; animation: pulse 1s infinite; }
.ref-status-done       { background: #4ade80; }
.ref-status-error      { background: #ff6b7a; }

.ref-card-v2-actions {
  display: flex;
  border-top: 1px solid var(--border);
}

.ref-btn-regen { }
.ref-btn-regen:hover { color: var(--accent); }

.ref-gate-warning {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 12px;
  color: #f5c842;
  margin-bottom: 10px;
  line-height: 1.5;
}

/* ── Per-entity anchor controls ──────────────────────────────────────────── */
.ref-entity-header {
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.ref-master-badge {
  position: absolute;
  top: 4px;
  left: 4px;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 5px;
  border-radius: 3px;
  z-index: 2;
  pointer-events: none;
}
.ref-card-anchor {
  border-color: rgba(245, 158, 11, 0.5) !important;
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.2);
}
.ref-card-anchor.ref-approved {
  border-color: rgba(34, 197, 94, 0.6) !important;
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.2);
}
.ref-anchor-indicator {
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}
.ref-variant-label {
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}
.btn-accent {
  background: rgba(245, 158, 11, 0.12);
  color: #f5c842;
  border: 1px solid rgba(245, 158, 11, 0.4);
  padding: 4px 10px;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
.btn-accent:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.6);
}

/* ── Ref feedback panel ─────────────────────────────────────────────────── */
.ref-feedback-panel {
  padding: 8px;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.15);
  border-radius: 0 0 6px 6px;
}
.ref-feedback-history {
  margin-bottom: 6px;
  max-height: 80px;
  overflow-y: auto;
}
.ref-feedback-item {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 3px;
  line-height: 1.4;
}
.ref-feedback-num {
  color: var(--text-secondary);
  font-weight: 600;
  margin-right: 4px;
}
.ref-feedback-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  padding: 6px 8px;
  resize: vertical;
  box-sizing: border-box;
}
.ref-feedback-input:focus {
  outline: none;
  border-color: var(--accent);
}
.ref-img-wrap img.ref-img {
  cursor: pointer;
}
.ref-img-wrap img.ref-img:hover {
  opacity: 0.85;
}

/* ── Stage 9: Storyboard Grid ───────────────────────────────────────────── */
.sb-container { padding: 16px; }
.sb-header { margin-bottom: 16px; }
.sb-stats { display: flex; gap: 16px; font-size: 13px; color: var(--text-muted); margin-bottom: 8px; }
.sb-stat-review { color: var(--amber, #f5c842); }
.sb-progress-wrap { height: 4px; background: var(--border); border-radius: 2px; margin-bottom: 10px; overflow: hidden; }
.sb-progress-bar { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.4s; }
.sb-header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.sb-scenes { display: flex; flex-direction: column; gap: 20px; }
.sb-scene-group {}
.sb-scene-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); padding: 4px 0 8px; border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.sb-scene-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }

.sb-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; transition: border-color 0.2s; }
.sb-card:hover { border-color: var(--accent); }
.sb-card-pass { border-color: rgba(74, 222, 128, 0.3); }
.sb-card-approved { border-color: var(--green); }
.sb-card-error { border-color: rgba(255, 107, 122, 0.4); }
.sb-card-human_review { border-color: var(--amber, #f5c842); }

.sb-card-img-wrap { aspect-ratio: 16/9; background: var(--bg-tertiary); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.sb-frame-img { width: 100%; height: 100%; object-fit: cover; cursor: pointer; transition: opacity 0.2s; }
.sb-frame-img:hover { opacity: 0.9; }
.sb-frame-placeholder { color: var(--text-muted); font-size: 24px; display: flex; align-items: center; justify-content: center; width: 100%; aspect-ratio: 16/9; }
.sb-spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.8s linear infinite; }

.sb-card-info { padding: 6px 8px 2px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.sb-card-id { font-size: 11px; font-weight: 600; color: var(--text-primary); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-card-type { font-size: 10px; color: var(--text-muted); }

.sb-badge { font-size: 10px; font-weight: 600; padding: 2px 5px; border-radius: 3px; white-space: nowrap; }
.sb-badge-pending      { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.sb-badge-generating   { background: rgba(99,102,241,0.15); color: #818cf8; }
.sb-badge-validating   { background: rgba(245,200,66,0.12); color: #f5c842; }
.sb-badge-pass         { background: rgba(74,222,128,0.12); color: #4ade80; }
.sb-badge-fail         { background: rgba(255,107,122,0.12); color: #ff6b7a; }
.sb-badge-review       { background: rgba(245,200,66,0.15); color: #f5c842; }
.sb-badge-approved     { background: rgba(74,222,128,0.2); color: #4ade80; }
.sb-badge-error        { background: rgba(255,107,122,0.2); color: #ff6b7a; }

.sb-val-result { font-size: 10px; padding: 4px 8px; border-top: 1px solid var(--border); }
.sb-val-pass { color: #4ade80; }
.sb-val-fail { color: #ff6b7a; }
.sb-val-issue { margin-top: 2px; opacity: 0.8; }

.sb-card-actions { display: flex; border-top: 1px solid var(--border); }
.sb-btn { flex: 1; padding: 5px 4px; font-size: 11px; background: none; border: none; cursor: pointer; color: var(--text-muted); transition: background 0.15s, color 0.15s; }
.sb-btn:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.sb-btn + .sb-btn { border-left: 1px solid var(--border); }
.sb-btn-approve:hover { color: #4ade80; }
.sb-btn-regen:hover { color: var(--accent); }

.sb-modal-content { max-width: 1000px; }
.sb-modal-content .ref-modal-img { max-height: 70vh; border-radius: 4px; }

/* ── Stage 10: Video Generation Grid ────────────────────────────────────── */
.vid-scene-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }

.vid-card { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; transition: border-color 0.2s; }
.vid-card:hover { border-color: var(--accent); }
.vid-card-done { border-color: rgba(74,222,128,0.3); }
.vid-card-approved { border-color: var(--green); }
.vid-card-error { border-color: rgba(255,107,122,0.4); }

.vid-card-media { aspect-ratio: 16/9; background: var(--bg-tertiary); overflow: hidden; position: relative; }
.vid-clip { width: 100%; height: 100%; object-fit: cover; display: block; cursor: pointer; }
.vid-placeholder { width: 100%; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 28px; }

.vid-card-info { padding: 6px 8px 2px; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.vid-badge { font-size: 10px; font-weight: 600; padding: 2px 5px; border-radius: 3px; white-space: nowrap; }
.vid-badge-pending    { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.vid-badge-generating { background: rgba(99,102,241,0.15); color: #818cf8; }
.vid-badge-done       { background: rgba(74,222,128,0.12); color: #4ade80; }
.vid-badge-approved   { background: rgba(74,222,128,0.2); color: #4ade80; }
.vid-badge-error      { background: rgba(255,107,122,0.2); color: #ff6b7a; }
.vid-ref-badge { font-size: 10px; font-weight: 500; padding: 2px 5px; border-radius: 3px; background: rgba(42,157,143,0.15); color: #2a9d8f; white-space: nowrap; }
.vid-ref-none  { background: rgba(255,107,122,0.1); color: #ff6b7a; }
.vid-model { font-size: 9px; color: var(--text-muted); padding: 1px 4px; background: var(--bg-tertiary); border-radius: 3px; }

.vid-last-frame-wrap { border-top: 1px solid var(--border); padding: 4px 8px; display: flex; align-items: center; gap: 6px; }
.vid-last-frame { width: 48px; height: 27px; object-fit: cover; border-radius: 2px; border: 1px solid var(--border); }
.vid-last-frame-label { font-size: 10px; color: var(--text-muted); }
.vid-error-msg { font-size: 10px; color: #ff6b7a; padding: 3px 8px; border-top: 1px solid var(--border); word-break: break-word; }

/* ── Reference Gallery v2 — Smart 5-tab Layout ──────────────────────────── */

/* Character group card */
.ref-char-group { background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 10px; margin-bottom: 16px; overflow: hidden; }
.ref-char-group-header { padding: 10px 16px 8px; border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.02); }
.ref-char-name { font-size: 14px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.3px; }

/* Character row (base / variant) */
.ref-char-row { padding: 10px 16px 12px; border-bottom: 1px solid var(--border); }
.ref-char-row:last-child { border-bottom: none; }
.ref-char-row-variant { background: rgba(244,162,97,0.03); }
.ref-char-row-header { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.ref-char-row-label { font-size: 12px; font-weight: 600; color: var(--text-secondary); }
.ref-variant-note { font-size: 10px; color: var(--text-muted); margin-left: 4px; }

/* Costume tab */
.ref-act-group { margin-bottom: 20px; }
.ref-act-header { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-accent); padding: 6px 0 8px; border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.ref-costume-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.ref-costume-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; transition: border-color 0.2s; }
.ref-costume-card:hover { border-color: var(--gold); }
.ref-costume-meta { padding: 6px 8px 4px; }
.ref-costume-title { font-size: 11px; font-weight: 600; color: var(--text-primary); }
.ref-costume-scene-range { font-size: 10px; color: var(--text-secondary); margin-top: 2px; }
.ref-costume-scene-tags { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 4px; }
.ref-costume-tag { font-size: 9px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 3px; padding: 1px 5px; color: var(--text-secondary); }
.ref-costume-tag-fb { background: rgba(180,120,40,0.12); color: #c8882a; border-color: rgba(180,120,40,0.3); }
.ref-costume-common-badge { font-size: 9px; font-weight: 600; background: rgba(244,162,97,0.15); color: var(--gold); border: 1px solid rgba(244,162,97,0.3); border-radius: 3px; padding: 1px 5px; }
.ref-costume-scene-list { font-size: 9px; color: var(--text-muted); margin-top: 3px; line-height: 1.4; }
/* legacy compat */
.ref-costume-char { font-size: 11px; font-weight: 600; color: var(--text-primary); }
.ref-costume-act { font-size: 10px; color: var(--text-secondary); margin-top: 1px; }
.ref-costume-scenes { font-size: 9px; color: var(--text-muted); margin-top: 2px; }

/* Location tab */
.ref-loc-group { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 16px; overflow: hidden; }
.ref-loc-group-header { display: flex; align-items: center; gap: 8px; padding: 10px 16px; background: rgba(255,255,255,0.02); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.ref-loc-group-icon { font-size: 14px; }
.ref-loc-group-name { font-size: 13px; font-weight: 700; color: var(--text-primary); }
.ref-loc-group-tag { font-size: 10px; color: var(--text-muted); background: var(--bg-card); border-radius: 4px; padding: 2px 6px; margin-left: auto; }
.ref-loc-sub { margin: 0 12px 10px; }
.ref-loc-sub .ref-section-header { background: transparent; }

/* Scene packages tab */
.ref-scene-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 10px; overflow: hidden; transition: border-color 0.2s; }
.ref-scene-card:hover { border-color: var(--blue-bright); }
.ref-scene-approved { border-color: var(--green) !important; }
.ref-scene-header { display: flex; align-items: flex-start; justify-content: space-between; padding: 8px 12px; gap: 8px; flex-wrap: wrap; border-bottom: 1px solid var(--border); }
.ref-scene-info { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; flex-wrap: wrap; }
.ref-scene-num { font-size: 10px; font-weight: 700; background: var(--accent); color: #fff; border-radius: 3px; padding: 1px 6px; flex-shrink: 0; }
.ref-scene-title { font-size: 12px; font-weight: 600; color: var(--text-primary); }
.ref-scene-meta { font-size: 10px; color: var(--text-muted); }
.ref-scene-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.ref-scene-readiness { font-size: 10px; padding: 2px 6px; border-radius: 4px; font-weight: 600; }
.ref-scene-readiness.ready { background: rgba(74,222,128,0.12); color: #4ade80; }
.ref-scene-readiness.not-ready { background: rgba(255,255,255,0.05); color: var(--text-muted); }
.ref-scene-refs { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; }
.ref-scene-thumb { width: 64px; flex-shrink: 0; text-align: center; }
.ref-scene-thumb img { width: 64px; height: 48px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); display: block; }
.ref-scene-thumb-pending img, .ref-scene-thumb-generating img { opacity: 0.3; }
.ref-scene-thumb.ref-approved img { border-color: var(--green); }
.ref-scene-thumb-empty { display: flex; align-items: center; justify-content: center; width: 64px; height: 48px; background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 4px; font-size: 16px; color: var(--text-muted); }
.ref-scene-thumb-label { font-size: 9px; color: var(--text-muted); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Props tab */
.ref-props-section { margin-bottom: 20px; }
.ref-props-section-header { display: flex; align-items: center; justify-content: space-between; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-accent); padding: 6px 0 8px; border-bottom: 1px solid var(--border); margin-bottom: 10px; }

/* Section-level actions bar */
.ref-section-actions { padding: 8px 0 12px; }

/* Entity state indicators */
.ref-entity-done { font-size: 11px; font-weight: 600; color: #4ade80; }
.ref-entity-busy { font-size: 11px; color: var(--text-muted); }

/* ── Film Assembly ──────────────────────────────────── */
.film-assembly-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 600px;
}
.film-assembly-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.film-assembly-stats {
  display: flex;
  gap: 16px;
}
.film-stat {
  font-size: 12px;
  color: var(--text-secondary);
}
.film-stat:first-child {
  color: var(--text-primary);
  font-weight: 600;
}
.film-assembly-actions {
  display: flex;
  gap: 8px;
}
.film-render-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.film-render-status {
  flex-direction: column;
  gap: 6px;
  padding: 10px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.render-progress-bar-wrap {
  width: 100%;
  height: 4px;
  background: var(--bg-input);
  border-radius: 2px;
  overflow: hidden;
}
.render-progress-bar {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s;
}
.render-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.render-status-text {
  font-size: 12px;
  color: var(--text-secondary);
}
.render-download-btn {
  font-size: 12px;
  padding: 4px 12px;
  text-decoration: none;
}

/* Timeline container */
#timeline-container {
  background: var(--bg-primary);
  border-radius: var(--radius);
}

/* Remotion spin animation */
@keyframes spin {
  to { transform: rotate(360deg); }
}