/* AI Manga Pipeline — premium dark design */

:root {
  --bg: #0a0a0c;
  --bg-1: #14141a;
  --bg-2: #1c1c24;
  --bg-3: #28282f;
  --border: #2a2a32;
  --border-strong: #3a3a45;
  --text: #f4f4f7;
  --text-dim: #8a8a95;
  --text-mute: #5a5a65;
  --accent: #f59e0b;
  --accent-2: #fbbf24;
  --accent-glow: rgba(245, 158, 11, 0.15);
  --success: #22c55e;
  --warn: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
  --mono: 'JetBrains Mono', monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
}

body {
  background:
    radial-gradient(circle at 0% 0%, rgba(245, 158, 11, 0.06), transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(251, 191, 36, 0.04), transparent 50%),
    var(--bg);
}

#app { min-height: 100vh; }

/* ---- shell ---- */
.shell {
  max-width: 1320px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.appHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 0.75rem; }
.brandMark {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 0 24px var(--accent-glow);
}
.brandCopy h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brandCopy .eyebrow {
  font-size: 0.7rem;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
}

.versionTag {
  font-size: 0.75rem;
  color: var(--text-mute);
  font-family: var(--mono);
  padding: 0.3rem 0.6rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 999px;
}

/* ---- main layout ---- */
.workspace {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.5rem;
}

@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; }
}

/* ---- panel ---- */
.panel {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.panelTitle {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--text-mute);
  margin-bottom: 0.85rem;
}

/* ---- form ---- */
label {
  display: block;
  margin-bottom: 0.85rem;
}
label > span {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
}

textarea, input, select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.15s;
}
textarea:focus, input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { resize: vertical; min-height: 140px; line-height: 1.6; font-family: var(--sans); }

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1rem;
  border: none;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #1a1a1f;
  box-shadow: 0 4px 12px var(--accent-glow);
}
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px var(--accent-glow); }
.btn.primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn.secondary {
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.secondary:hover { background: var(--bg-3); border-color: var(--border-strong); }

.btn.ghost { background: transparent; color: var(--text-dim); padding: 0.4rem 0.6rem; }
.btn.ghost:hover { color: var(--text); }

/* ---- storyboard display ---- */
.storyHeader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.storyHeader h2 {
  font-size: 1.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.storyMeta {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--mono);
}

.roleGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.roleCard {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem;
}
.roleName {
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.3rem;
}
.roleDesc { font-size: 0.78rem; color: var(--text-dim); line-height: 1.5; }

/* ---- panels grid ---- */
.panelsGrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.panelCard {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.85rem;
  transition: all 0.15s;
}
.panelCard:hover { border-color: var(--accent); transform: translateY(-2px); }

.panelHead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.panelNum {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 700;
}
.panelShot {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  background: var(--bg-3);
  border-radius: 3px;
  color: var(--text-dim);
}
.panelMood {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 3px;
  border: 1px solid var(--accent);
}
.panelScene { font-size: 0.82rem; color: var(--text); line-height: 1.5; margin-bottom: 0.5rem; }

.panelDialogue {
  font-size: 0.78rem;
  background: rgba(255,255,255,0.04);
  border-left: 2px solid var(--accent);
  padding: 0.4rem 0.6rem;
  border-radius: 0 4px 4px 0;
  color: var(--text-dim);
  font-style: italic;
}

/* ---- placeholder / spinner ---- */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty {
  padding: 3rem;
  text-align: center;
  color: var(--text-dim);
}
.empty .icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  opacity: 0.6;
}
.empty .msg { font-size: 0.85rem; }
.empty .hint {
  font-size: 0.75rem;
  color: var(--text-mute);
  margin-top: 0.4rem;
}

/* ---- styles selector ---- */
.styleGrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}
.styleCard {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.7rem;
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
}
.styleCard:hover { border-color: var(--border-strong); }
.styleCard.active {
  border-color: var(--accent);
  background: var(--accent-glow);
  color: var(--accent);
}

/* ---- toast ---- */
#toast-wrap {
  position: fixed;
  top: 1rem; right: 1rem;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  padding: 0.75rem 1rem;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  min-width: 220px;
  border-left: 3px solid var(--accent);
  animation: slideIn 0.2s ease-out;
}
.toast.error { border-left-color: var(--danger); }
.toast.info { border-left-color: var(--text-mute); }
@keyframes slideIn { from { transform: translateX(20px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ---- header dropdown row ---- */
.actionsRow {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.85rem;
}
.actionsRow .btn { flex: 1; min-width: 120px; }

/* ---- viewer ---- */
.viewer {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  min-height: 600px;
}

.viewerImg {
  width: 100%;
  border-radius: 6px;
  display: block;
}