:root {
  --bg: #0b1020;
  --bg-soft: #121a30;
  --bg-card: #16203a;
  --bg-input: #0e1730;
  --border: #24304f;
  --border-soft: #1b2540;
  --text: #e7ecf6;
  --text-dim: #96a3c2;
  --text-faint: #6c7897;
  --accent: #4c8dff;
  --accent-2: #23d3a5;
  --accent-3: #ffb454;
  --danger: #ff6b81;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; overflow: hidden; }

/* ------------------------------------------------------------------ header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 18px;
  background: linear-gradient(90deg, #101a33 0%, #0d1730 60%, #0b1020 100%);
  border-bottom: 1px solid var(--border);
  flex: 0 0 auto;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  font-weight: 700; letter-spacing: .5px; font-size: 13px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101f;
}
.brand-text h1 { margin: 0; font-size: 16px; font-weight: 650; letter-spacing: .2px; }
.brand-text p { margin: 2px 0 0; font-size: 12px; color: var(--text-dim); }
.topbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.badge {
  font-size: 11.5px; padding: 4px 9px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--text-dim);
  background: rgba(255, 255, 255, .02); text-decoration: none; white-space: nowrap;
}
.badge.link:hover { color: var(--text); border-color: var(--accent); }

/* ------------------------------------------------------------------ layout */
.layout {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr) 320px;
  min-height: 0;
}

.sidebar, .inspector {
  background: var(--bg-soft);
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.sidebar { border-right: 1px solid var(--border); }
.inspector { border-left: 1px solid var(--border); overflow-y: auto; padding: 14px; }

/* -------------------------------------------------------------------- tabs */
.tabs { display: flex; border-bottom: 1px solid var(--border); flex: 0 0 auto; }
.tab {
  flex: 1; padding: 11px 6px; background: none; border: none;
  color: var(--text-dim); font-size: 13px; cursor: pointer; font-family: var(--sans);
  border-bottom: 2px solid transparent; transition: .15s;
}
.tab:hover { color: var(--text); background: rgba(255, 255, 255, .02); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); background: rgba(76, 141, 255, .08); }

.panel { display: none; padding: 14px; overflow-y: auto; flex: 1 1 auto; min-height: 0; }
.panel.active { display: block; }

/* ------------------------------------------------------------------ fields */
.field { margin-bottom: 12px; }
.field > label {
  display: block; font-size: 11.5px; text-transform: uppercase;
  letter-spacing: .6px; color: var(--text-faint); margin-bottom: 5px;
}
select, input[type="number"], input[type="search"], textarea {
  width: 100%; padding: 8px 9px; border-radius: 8px;
  background: var(--bg-input); color: var(--text);
  border: 1px solid var(--border); font-size: 13px; font-family: var(--sans);
  outline: none; transition: border-color .15s;
}
textarea { font-family: var(--mono); font-size: 12px; resize: vertical; line-height: 1.5; }
select:focus, input:focus, textarea:focus { border-color: var(--accent); }
select:disabled { opacity: .45; cursor: not-allowed; }

.triple { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.triple input { text-align: center; }

.hint { margin: 6px 0 0; font-size: 11.5px; line-height: 1.55; color: var(--text-faint); }
.hint code, code {
  font-family: var(--mono); font-size: 11px;
  background: rgba(255, 255, 255, .06); padding: 1px 4px; border-radius: 4px;
}

/* -------------------------------------------------------------- bb editors */
.bb-editor {
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 11px; margin-bottom: 12px; background: rgba(255, 255, 255, .015);
}
.bb-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 9px; }
.chip {
  font-size: 11.5px; font-weight: 600; padding: 3px 8px; border-radius: 999px;
}
.chip-a { background: rgba(76, 141, 255, .16); color: #9dc0ff; border: 1px solid rgba(76, 141, 255, .3); }
.chip-b { background: rgba(35, 211, 165, .14); color: #7fe7c9; border: 1px solid rgba(35, 211, 165, .3); }
.bb-hint { font-size: 11px; color: var(--text-faint); font-family: var(--mono); }

.r-groups { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 4px; }
.r-groups .field { margin-bottom: 0; }
.r-groups .field > label { font-size: 10.5px; }

/* ----------------------------------------------------------------- buttons */
.actions { display: flex; gap: 8px; margin: 12px 0 6px; flex-wrap: wrap; }
.btn {
  padding: 8px 13px; border-radius: 8px; cursor: pointer; font-size: 13px;
  border: 1px solid var(--border); background: var(--bg-card); color: var(--text);
  font-family: var(--sans); transition: .15s;
}
.btn:hover:not(:disabled) { border-color: var(--accent); background: #1b2947; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #3a6fe0);
  border-color: transparent; color: #fff; font-weight: 600;
}
.btn.primary:hover:not(:disabled) { filter: brightness(1.12); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.small { padding: 6px 10px; font-size: 12px; }

.seg {
  padding: 5px 10px; font-size: 12px; cursor: pointer;
  background: transparent; color: var(--text-dim);
  border: 1px solid var(--border); border-radius: 7px; font-family: var(--sans);
}
.seg:hover { color: var(--text); }
.seg.active { background: rgba(76, 141, 255, .18); color: #cfe0ff; border-color: var(--accent); }

.toggle {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--text-dim); cursor: pointer; margin-right: 10px;
}
.toggle input { accent-color: var(--accent); }

/* ------------------------------------------------------------------- stage */
.stage { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); }
.viewer-toolbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  padding: 9px 14px; border-bottom: 1px solid var(--border); background: var(--bg-soft);
  flex: 0 0 auto;
}
.viewer-toolbar .group { display: flex; align-items: center; gap: 6px; }
.group-label { font-size: 11.5px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .5px; }

.viewer-wrap { position: relative; flex: 1 1 auto; min-height: 0; }
#viewer { position: absolute; inset: 0; }
#viewer canvas { display: block; }

.viewer-overlay {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: radial-gradient(circle at 50% 45%, rgba(76, 141, 255, .09), transparent 60%);
  pointer-events: none; transition: opacity .25s;
}
.viewer-overlay.hidden { opacity: 0; }
.overlay-card {
  text-align: center; padding: 22px 28px; border-radius: 14px;
  border: 1px dashed var(--border); background: rgba(18, 26, 48, .7); max-width: 460px;
}
.overlay-card h2 { margin: 0 0 8px; font-size: 16px; }
.overlay-card p { margin: 4px 0; font-size: 12.5px; color: var(--text-dim); }
.overlay-mono { font-family: var(--mono); font-size: 11.5px !important; color: var(--accent-2) !important; }

.viewer-status {
  position: absolute; left: 12px; bottom: 12px;
  font-family: var(--mono); font-size: 11.5px; color: var(--text-dim);
  background: rgba(11, 16, 32, .78); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px; max-width: 70%;
  white-space: pre-wrap; pointer-events: none;
}
.viewer-status:empty { display: none; }

/* --------------------------------------------------------------- inspector */
.inspector-title {
  font-size: 11.5px; text-transform: uppercase; letter-spacing: .7px;
  color: var(--text-faint); margin: 0 0 10px; font-weight: 600;
}
.inspector-title:not(:first-child) { margin-top: 22px; }
.empty { font-size: 12.5px; color: var(--text-faint); }
.hidden { display: none !important; }

.kv { display: grid; grid-template-columns: 88px 1fr; gap: 4px 10px; font-size: 12.5px; }
.kv dt { color: var(--text-faint); }
.kv dd { margin: 0; word-break: break-word; }
.kv dd.mono { font-family: var(--mono); font-size: 11.5px; }

.info-name {
  font-family: var(--mono); font-size: 11.5px; line-height: 1.5;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 9px; margin-bottom: 10px; word-break: break-all;
}
.info-section { margin-bottom: 14px; }
.info-section h3 {
  font-size: 12px; margin: 0 0 6px; color: var(--accent-2); font-weight: 600;
  letter-spacing: .3px;
}

/* ------------------------------------------------------------------- lists */
.stat-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.stat {
  flex: 1 1 68px; text-align: center; padding: 7px 4px;
  border: 1px solid var(--border-soft); border-radius: 8px; background: var(--bg-card);
}
.stat b { display: block; font-size: 16px; color: var(--accent); }
.stat span { font-size: 10.5px; color: var(--text-faint); }

.lib-scroll { display: flex; flex-direction: column; gap: 10px; }
.lib-group h3 {
  font-size: 12px; margin: 0 0 6px; color: var(--text-dim);
  display: flex; justify-content: space-between; align-items: baseline;
}
.lib-group h3 em { font-style: normal; font-size: 11px; color: var(--text-faint); }
.lib-items { display: flex; flex-wrap: wrap; gap: 5px; }
.pill {
  font-size: 11.5px; font-family: var(--mono); padding: 3px 8px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--bg-card); color: var(--text-dim);
  cursor: pointer; transition: .12s;
}
.pill:hover { color: var(--text); border-color: var(--accent); background: #1b2947; }
.pill.active { border-color: var(--accent); color: #cfe0ff; background: rgba(76, 141, 255, .18); }

.card {
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 10px 11px; background: var(--bg-card); margin-bottom: 10px;
}
.card h4 { margin: 0 0 4px; font-size: 13px; display: flex; align-items: center; gap: 8px; }
.card p { margin: 3px 0; font-size: 12px; color: var(--text-dim); line-height: 1.5; }
.card .meta { font-family: var(--mono); font-size: 11px; color: var(--text-faint); }
.card.clickable { cursor: pointer; transition: .15s; }
.card.clickable:hover { border-color: var(--accent); background: #1a2440; }

.tag {
  font-size: 10.5px; padding: 2px 7px; border-radius: 999px; font-weight: 600;
  border: 1px solid transparent; white-space: nowrap;
}
.tag.ok { background: rgba(35, 211, 165, .14); color: #6fe3c4; border-color: rgba(35, 211, 165, .3); }
.tag.warn { background: rgba(255, 180, 84, .14); color: #ffcb84; border-color: rgba(255, 180, 84, .3); }
.tag.bad { background: rgba(255, 107, 129, .14); color: #ff9aab; border-color: rgba(255, 107, 129, .3); }
.tag.info { background: rgba(76, 141, 255, .14); color: #9dc0ff; border-color: rgba(76, 141, 255, .3); }

.preset-list { display: flex; flex-direction: column; gap: 4px; margin-top: 7px; }
.preset {
  font-family: var(--mono); font-size: 11px; padding: 5px 8px; border-radius: 6px;
  background: var(--bg-input); border: 1px solid var(--border-soft);
  color: var(--text-dim); cursor: pointer; text-align: left;
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  transition: .12s; width: 100%;
}
.preset:hover { border-color: var(--accent); color: var(--text); }
.preset > span:first-child { word-break: break-all; line-height: 1.4; }
.preset > span:last-child { color: var(--text-faint); font-size: 10.5px; }

/* ------------------------------------------------------------------- misc */
.log-box {
  font-family: var(--mono); font-size: 11px; line-height: 1.5; white-space: pre-wrap;
  background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px; margin-top: 12px; max-height: 220px; overflow: auto; color: var(--text-dim);
}
.log-box.error { border-color: rgba(255, 107, 129, .5); color: #ffb3be; }

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 20px);
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 10px 16px; border-radius: 10px; font-size: 12.5px;
  opacity: 0; pointer-events: none; transition: .25s; z-index: 50; max-width: 70vw;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .45);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.error { border-color: rgba(255, 107, 129, .6); color: #ffb3be; }
.toast.ok { border-color: rgba(35, 211, 165, .5); color: #a9f0dd; }

.spinner {
  width: 13px; height: 13px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .25); border-top-color: #fff;
  display: inline-block; animation: spin .7s linear infinite; vertical-align: -2px;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* -------------------------------------------------------------- responsive */
@media (max-width: 1280px) {
  .layout { grid-template-columns: 300px minmax(0, 1fr) 280px; }
}
@media (max-width: 1024px) {
  body { overflow: auto; }
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); max-height: 46vh; }
  .stage { height: 60vh; }
  .inspector { max-height: none; }
}