:root {
  color-scheme: dark;
  --bg: #090a12;
  --surface: rgba(18, 20, 35, 0.84);
  --surface-strong: #16192a;
  --card: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f6f7fb;
  --muted: #9ca6bd;
  --primary: #8b5cf6;
  --primary-strong: #a78bfa;
  --accent: #22d3ee;
  --warning: #f59e0b;
  --danger: #fb7185;
  --success: #34d399;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(139, 92, 246, 0.32), transparent 34rem),
    radial-gradient(circle at 85% 12%, rgba(34, 211, 238, 0.18), transparent 28rem),
    linear-gradient(135deg, #080910 0%, #0d1020 50%, #111827 100%);
}

button,
input,
textarea { font: inherit; }

button { cursor: pointer; }

.app-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100vh;
  padding: 22px;
  border-right: 1px solid var(--border);
  background: rgba(8, 10, 18, 0.72);
  backdrop-filter: blur(22px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 15px;
  color: #ffffff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 16px 34px rgba(139, 92, 246, 0.32);
}

.brand strong,
.brand small { display: block; }

.brand small,
.eyebrow,
.project-card p,
.feature-card p,
.hero-card p,
.editor-footer,
.metric-grid span { color: var(--muted); }

.panel,
.hero-card,
.editor-panel,
.assistant-panel,
.feature-card,
.drawer {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
}

.panel,
.hero-card,
.editor-panel,
.assistant-panel,
.feature-card { border-radius: 24px; }

.panel.compact { padding: 16px; }

.grow { flex: 1; min-height: 0; }

.panel-head,
.drawer-head,
.editor-toolbar,
.topbar,
.editor-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.panel-head { margin-bottom: 14px; font-weight: 700; }

.panel-head.large { align-items: flex-start; }

.panel-head h2,
.editor-toolbar h2,
.topbar h1,
.drawer-head h2 { margin: 4px 0 0; }

.eyebrow {
  display: inline-flex;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ghost-btn,
.secondary-btn,
.primary-btn,
.toolbar-actions button,
.assist-tabs button {
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.ghost-btn { padding: 7px 11px; font-size: 13px; }

.secondary-btn,
.primary-btn,
.toolbar-actions button { padding: 10px 15px; }

.primary-btn {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), #06b6d4);
  box-shadow: 0 12px 24px rgba(139, 92, 246, 0.26);
}

.project-card {
  padding: 16px;
  border: 1px solid rgba(139, 92, 246, 0.36);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(34, 211, 238, 0.08));
}

.project-card h2 { margin: 10px 0 6px; font-size: 20px; }

.project-badge,
.status-dot,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.project-badge { padding: 5px 9px; color: #ede9fe; background: rgba(139, 92, 246, 0.24); }

.chapter-list { display: grid; gap: 10px; overflow: auto; padding-right: 4px; }

.chapter-item {
  width: 100%;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 15px;
  color: var(--text);
  text-align: left;
  background: rgba(255, 255, 255, 0.045);
}

.chapter-item.active { border-color: var(--primary-strong); background: rgba(139, 92, 246, 0.16); }

.chapter-item strong,
.chapter-item span { display: block; }

.chapter-item span { margin-top: 6px; color: var(--muted); font-size: 12px; }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.metric-grid div {
  padding: 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.055);
}

.metric-grid strong { display: block; font-size: 20px; }

.workspace {
  display: grid;
  gap: 22px;
  padding: 28px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  padding: 12px 0;
  background: linear-gradient(180deg, rgba(9, 10, 18, 0.95), rgba(9, 10, 18, 0.72));
  backdrop-filter: blur(16px);
}

.topbar h1 { font-size: clamp(28px, 4vw, 46px); letter-spacing: -0.05em; }

.topbar-actions,
.toolbar-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) repeat(2, minmax(220px, 0.72fr));
  gap: 16px;
}

.hero-card { padding: 22px; }

.hero-card h2,
.hero-card h3 { margin: 10px 0; }

.gradient-card {
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.78), rgba(6, 182, 212, 0.5)),
    rgba(255, 255, 255, 0.08);
}

.gradient-card p,
.gradient-card span { color: rgba(255, 255, 255, 0.84); }

.editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: stretch;
}

.editor-panel,
.assistant-panel { padding: 20px; }

.editor-toolbar { align-items: flex-start; margin-bottom: 16px; }

#chapterEditor {
  width: 100%;
  min-height: 560px;
  resize: vertical;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 22px;
  color: #fdf7ef;
  outline: none;
  background: rgba(0, 0, 0, 0.22);
  font: 500 18px/1.9 "Noto Serif SC", serif;
}

.editor-footer { margin-top: 12px; font-size: 13px; }

.assistant-panel { display: flex; flex-direction: column; min-height: 100%; }

.status-dot { padding: 6px 10px; color: #bbf7d0; background: rgba(52, 211, 153, 0.16); }

.status-dot.offline { color: #fde68a; background: rgba(245, 158, 11, 0.18); }

.assist-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0 16px; }

.assist-tabs button { padding: 9px; }

.assist-tabs button.active { border-color: var(--primary-strong); background: rgba(139, 92, 246, 0.24); }

.assist-feed { display: grid; gap: 12px; overflow: auto; }

.assist-card,
.knowledge-card,
.publish-card,
.relation-item {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.052);
}

.assist-card h3,
.knowledge-card h3,
.publish-card h3,
.relation-item h3 { margin: 0 0 8px; font-size: 15px; }

.assist-card p,
.knowledge-card p,
.publish-card p,
.relation-item p { margin: 0; color: var(--muted); line-height: 1.6; }

.assist-card.warning { border-color: rgba(245, 158, 11, 0.48); }

.assist-card.danger { border-color: rgba(251, 113, 133, 0.48); }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card { padding: 18px; }

.feature-card h3 { margin: 14px 0 8px; }

.icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 15px;
  background: rgba(139, 92, 246, 0.18);
}

.graph-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 18px;
}

.ops-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  gap: 18px;
}

.graph-panel,
.relation-panel,
.ops-panel { padding: 20px; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.form-grid input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  outline: none;
  background: rgba(255, 255, 255, 0.06);
}

.config-textarea {
  width: 100%;
  min-height: 112px;
  margin-bottom: 14px;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  outline: none;
  resize: vertical;
  background: rgba(255, 255, 255, 0.06);
}

.version-list {
  display: grid;
  gap: 10px;
  max-height: 270px;
  overflow: auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.stat-card {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.052);
}

.stat-card strong,
.stat-card span { display: block; }

.stat-card strong { font-size: 26px; }

.stat-card span { margin-top: 6px; color: var(--muted); }

.log-list {
  display: grid;
  gap: 10px;
  max-height: 290px;
  overflow: auto;
}

.log-card {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.052);
}

.log-card.danger { border-color: rgba(251, 113, 133, 0.5); }

.log-card h3 { margin: 0 0 8px; font-size: 14px; }

.log-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; overflow-wrap: anywhere; }

.goal-box {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.goal-box input,
.goal-box button,
.knowledge-card button,
.log-card button {
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.progress-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  max-height: 250px;
  overflow: auto;
}

.progress-card {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.052);
}

.progress-card h3 { margin: 0 0 8px; }

.progress-card p { margin: 8px 0 0; color: var(--muted); }

.progress-bar {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.version-card {
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.052);
}

.version-card h3 { margin: 0 0 8px; }

.version-card p { margin: 0 0 10px; color: var(--muted); line-height: 1.55; }

.version-card button,
.card-actions button {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.status-published { color: #bbf7d0; background: rgba(52, 211, 153, 0.16); }

.status-failed { color: #fecdd3; background: rgba(251, 113, 133, 0.18); }

.node-map {
  position: relative;
  min-height: 340px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 22px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    rgba(0, 0, 0, 0.18);
  background-size: 36px 36px;
}

.graph-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.graph-tabs button {
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.graph-tabs button.active { border-color: var(--primary-strong); background: rgba(139, 92, 246, 0.22); }

.graph-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.graph-stats span {
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.045);
}

.graph-stats strong { display: block; margin-top: 4px; color: var(--text); font-size: 18px; }

.graph-edges {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.graph-edges line { stroke: rgba(167, 139, 250, 0.42); stroke-width: 2; }

.node {
  position: absolute;
  display: grid;
  min-width: 92px;
  min-height: 92px;
  place-items: center;
  padding: 12px;
  border: 1px solid rgba(167, 139, 250, 0.6);
  border-radius: 999px;
  text-align: center;
  background: rgba(139, 92, 246, 0.18);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.26);
}

button.node { color: var(--text); cursor: pointer; }

.node.core {
  min-width: 128px;
  min-height: 128px;
  border-color: rgba(34, 211, 238, 0.72);
  background: rgba(34, 211, 238, 0.18);
}

.node-knowledge { border-color: rgba(34, 211, 238, 0.6); background: rgba(34, 211, 238, 0.16); }
.node-character { border-color: rgba(52, 211, 153, 0.62); background: rgba(52, 211, 153, 0.16); }
.node-timeline { border-color: rgba(245, 158, 11, 0.65); background: rgba(245, 158, 11, 0.16); }
.node-scene { border-color: rgba(244, 114, 182, 0.62); background: rgba(244, 114, 182, 0.16); }
.node-world { border-color: rgba(167, 139, 250, 0.72); background: rgba(167, 139, 250, 0.16); }

.graph-detail {
  margin-top: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.052);
}

.graph-detail strong,
.graph-detail span { display: block; }

.graph-detail strong { color: var(--text); }

.graph-detail p { margin: 8px 0 0; line-height: 1.6; }

.relation-list { display: grid; gap: 12px; }

.tag { padding: 4px 8px; margin-bottom: 8px; color: #cffafe; background: rgba(34, 211, 238, 0.14); }

.drawer {
  position: fixed;
  top: 20px;
  right: 20px;
  bottom: 20px;
  z-index: 20;
  width: min(760px, calc(100vw - 40px));
  overflow: auto;
  padding: 22px;
  border-radius: 28px;
  transform: translateX(calc(100% + 40px));
  transition: transform 0.24s ease;
}

.drawer.open {
  transform: translateX(0);
}

.search-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin: 20px 0;
}

.search-box input {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  outline: none;
  background: rgba(255, 255, 255, 0.06);
}

.knowledge-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.knowledge-columns > div,
.publish-board { display: grid; gap: 12px; align-content: start; }

.publish-board { margin-top: 20px; }

@media (max-width: 1180px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .editor-layout,
  .hero-grid,
  .graph-layout,
  .ops-layout { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .workspace,
  .sidebar { padding: 16px; }
  .topbar,
  .editor-toolbar,
  .drawer-head,
  .editor-footer { align-items: flex-start; flex-direction: column; }
  .feature-grid,
  .knowledge-columns,
  .search-box,
  .form-grid,
  .stats-grid,
  .goal-box,
  .graph-stats { grid-template-columns: 1fr; }
  #chapterEditor { min-height: 420px; font-size: 16px; }
}

.admin-btn,
.admin-btn-sm {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  font: inherit;
  cursor: pointer;
}

.admin-btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}