:root {
  color-scheme: dark;
  --bg: #07141d; --panel: #0e2733; --line: #2a4b57; --ink: #e8efee;
  --muted: #9fb4bb; --gold: #e7b84b; --ok: #36c7b0; --err: #e86c67;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink); background: radial-gradient(900px 500px at 90% -10%, #14414b66, transparent 60%), var(--bg);
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--gold); text-decoration: none; }
code { background: #ffffff12; padding: 1px 5px; border-radius: 4px; font-size: .92em; }
.topbar {
  display: flex; align-items: center; gap: 18px; padding: 14px 22px;
  border-bottom: 1px solid var(--line); background: #07141dcc;
}
.brand { font-weight: 600; letter-spacing: .02em; }
.nav { display: flex; gap: 16px; margin-left: auto; }
.topbar form { margin: 0; }
main { flex: 1; width: min(1000px, 100%); margin: 0 auto; padding: 24px 22px 60px; }
.foot { padding: 14px 22px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--line); }
.card {
  border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(150deg, #10303d99, #081b29cc);
  padding: 20px 22px; margin-bottom: 20px;
}
.card.narrow { max-width: 460px; margin: 40px auto; }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 15px; margin: 20px 0 10px; color: var(--gold); }
.eyebrow { text-transform: uppercase; letter-spacing: .18em; font-size: 11px; color: var(--gold); margin: 0; }
.muted { color: var(--muted); }
.stack { display: grid; gap: 12px; }
.row { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; }
.row label, .stack label { display: grid; gap: 5px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  font: inherit; color: var(--ink); background: #061119; border: 1px solid var(--line);
  border-radius: 7px; padding: 9px 11px; min-width: 140px;
}
textarea { width: 100%; resize: vertical; }
fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; display: grid; gap: 10px; }
legend { color: var(--muted); font-size: 12px; padding: 0 6px; }
a.btn-ghost {
  display: inline-flex; align-items: center; padding: 9px 15px; border: 1px solid var(--line);
  border-radius: 7px; background: #0a1a24; color: var(--ink);
}
.raw { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; line-height: 1.5; min-height: 320px; }
button { font: inherit; cursor: pointer; border-radius: 7px; padding: 9px 15px; border: 1px solid var(--line); background: #0d2530; color: var(--ink); }
button.primary { background: linear-gradient(180deg, #ffe8a1, #e0a93f); color: #241807; border-color: #f3d78d; font-weight: 700; }
button.ghost { background: #0a1a24; }
button.danger { background: #3a1d1d; border-color: #6b3030; color: #f4c9c7; }
button[disabled] { opacity: .45; cursor: not-allowed; }
.grid { width: 100%; border-collapse: collapse; }
.grid th, .grid td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.grid th { color: var(--muted); font-weight: 600; font-size: 12px; }
.row-actions { display: flex; gap: 8px; }
.row-actions form { margin: 0; }
.banner { padding: 10px 14px; border-radius: 7px; margin: 0 0 16px; }
.banner.ok { background: #10352f; border: 1px solid var(--ok); }
.banner.err { background: #3a1d1d; border: 1px solid var(--err); }
.status { padding: 10px 14px; border-radius: 7px; margin: 12px 0; font-weight: 600; }
.status.ok { background: #10352f; border: 1px solid var(--ok); }
.status.err { background: #3a1d1d; border: 1px solid var(--err); }
.report { list-style: none; padding: 0; display: grid; gap: 6px; }
.report li { padding: 8px 12px; border-radius: 6px; border: 1px solid var(--line); }
.report li.ok { border-color: #2c6b60; }
.report li.err { border-color: var(--err); background: #2a1414; }
.report li.warn { border-color: #c4a265; background: #2a2214; }
.report li.info { border-color: var(--line); color: var(--muted); }
details.validation { margin: 12px 0; }
details.validation > summary { cursor: pointer; color: var(--muted); font-size: 13px; padding: 6px 0; }
.files { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
pre { background: #061119; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; overflow-x: auto; }
.actions { gap: 10px; }

/* Entity list with thumbnails */
.entity-list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.entity-row { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: #081b29cc; }
.entity-row form { margin: 0; }
.entity-link { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 0; color: var(--ink); }
.entity-row .thumb { flex: 0 0 auto; width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 7px; background: #061119; overflow: hidden; }
.entity-row .thumb img { width: 100%; height: 100%; object-fit: contain; }
.entity-row .thumb .icon { width: 24px; height: 24px; color: var(--muted); }
.entity-main { display: grid; min-width: 0; }
.entity-key code { font-size: 13px; }
.entity-summary { color: var(--muted); font-size: 13px; }

/* Form fields */
.field { display: grid; gap: 4px; }
.field > label { display: grid; gap: 5px; }
.help { margin: 0; font-size: 12px; color: var(--muted); font-style: italic; }
.asset-field { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.asset-field input[type="text"] { flex: 1; min-width: 200px; }

/* Asset picker modal */
.asset-modal { width: min(900px, 92vw); max-height: 88vh; border: 1px solid var(--gold-edge); border-radius: 10px; padding: 0; color: var(--ink); background: linear-gradient(150deg, #12303d, #05141f); }
.asset-modal::backdrop { background: #020a10c9; }
.asset-modal header { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: #0a1a24; z-index: 1; }
.asset-modal header h2 { margin: 0; white-space: nowrap; }
.asset-modal header input[type="search"] { flex: 1; }
.asset-modal .asset-grid { padding: 14px 16px; max-height: 68vh; overflow: auto; margin-top: 0; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
.asset-pick { display: grid; gap: 4px; padding: 6px; border: 1px solid var(--line); border-radius: 8px; background: #061119; cursor: pointer; }
.asset-pick:hover { border-color: var(--gold); }
.asset-pick img { width: 100%; height: 84px; object-fit: contain; background: repeating-conic-gradient(#0b1a22 0% 25%, #081420 0% 50%) 50% / 16px 16px; }
.asset-pick code { font-size: 10px; color: var(--muted); word-break: break-all; }

/* Choice rows (events) */
.choice-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; align-items: end; border: 1px solid var(--line); border-radius: 8px; padding: 12px; margin-bottom: 10px; background: #081b29cc; }
.choice-row label { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.choice-row .danger { justify-self: end; }

/* Dungeon nodes */
.node-block { border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 14px; background: #081b29cc; display: grid; gap: 10px; }
.node-block h3 { margin: 6px 0 0; font-size: 14px; color: var(--gold); }
.node-block > .danger { justify-self: start; }

/* AI diff */
.diff { background: #061119; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; overflow: auto; max-height: 60vh; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; line-height: 1.5; }
.diff span { display: block; white-space: pre-wrap; }
.diff .add { color: #7fe3c6; background: #0e2b24; }
.diff .del { color: #f0938e; background: #2a1414; }
.diff .ctx { color: var(--muted); }

/* SVG asset preview */
.svg-preview { display: block; width: min(480px, 100%); border: 1px solid var(--line); border-radius: 8px; background: #061119; }

/* Assets */
.asset-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 12px; margin-top: 16px; }
.asset { margin: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #061119; }
.asset img { width: 100%; height: 108px; object-fit: contain; background: repeating-conic-gradient(#0b1a22 0% 25%, #081420 0% 50%) 50% / 16px 16px; }
.asset figcaption { padding: 6px 8px; font-size: 11px; word-break: break-all; color: var(--muted); }
.asset-preview { display: block; max-width: 180px; max-height: 120px; margin-top: 8px; border: 1px solid var(--line); border-radius: 6px; background: #061119; }
.asset-preview.big { max-width: 340px; max-height: 220px; }

/* Progression timeline */
.timeline { list-style: none; padding: 0; margin: 18px 0; position: relative; display: grid; gap: 0; }
.timeline::before { content: ""; position: absolute; left: 19px; top: 26px; bottom: 54px; width: 2px; background: #2a4b57; }
.stop { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px; }
.stop-index { width: 32px; height: 32px; margin-top: 12px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--gold); color: var(--gold); font-weight: 700; background: #0a1a24; position: relative; z-index: 1; }
.stop-index.loop-index { border-color: var(--ok); color: var(--ok); }
.stop-card { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 14px; margin: 10px 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: linear-gradient(150deg, #10303d99, #081b29cc); }
.stop-art { background-size: cover; background-position: center; min-height: 96px; }
.stop-body { padding: 12px 14px; min-width: 0; }
.stop-body h2 { font-size: 16px; margin: 0 0 4px; }
.stop-body h2 code { font-size: 12px; color: var(--muted); }
.loop-card { padding: 12px 14px; color: var(--ok); border: 1px dashed var(--ok); background: #0c2420; }
.pills { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 0; }
.pill { padding: 3px 9px; border: 1px solid var(--line); border-radius: 999px; font-size: 11px; color: var(--muted); }
.pill.gold { color: var(--gold); border-color: #e7b84b66; }

/* Rendered JSON views */
.render { background: #061119; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; margin: 10px 0; }
.render p { margin: 6px 0; }

/* Stat cards */
.stat-cards { list-style: none; padding: 0; margin: 14px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; }
.stat-cards li { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; background: #081b29cc; color: var(--muted); font-size: 12px; }
.stat-cards li span { display: block; font-size: 22px; font-weight: 700; color: var(--gold-light); font-variant-numeric: tabular-nums; }
.render li { margin: 5px 0; }
.node { border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; margin: 10px 0; }
.node h3 { margin: 0 0 6px; font-size: 15px; }

/* World sub-navigation */
.subnav {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 10px 22px; border-bottom: 1px solid var(--line); background: #081b29aa;
}
.subnav-crumb { font-size: 13px; color: var(--muted); white-space: nowrap; }
.subnav-crumb a { color: var(--muted); }
.subnav-crumb a:hover { color: var(--gold); }
.subnav-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.subnav-tabs a { padding: 5px 11px; border-radius: 999px; font-size: 13px; color: var(--muted); border: 1px solid transparent; }
.subnav-tabs a:hover { color: var(--ink); border-color: var(--line); }
.subnav-tabs a.active { color: #241807; background: linear-gradient(180deg, #ffe8a1, #e0a93f); border-color: #f3d78d; font-weight: 600; }

/* Grouped tiles (world page) */
.group { margin-top: 16px; }
.group-hint { margin: 2px 0 8px; font-size: 12px; }
.tile-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 10px; }
.tile { display: flex; align-items: center; justify-content: space-between; gap: 10px; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; background: #081b29cc; color: var(--ink); }
.tile:hover { border-color: var(--gold); }
.tile-label { display: grid; gap: 2px; }
.tile-label small { color: var(--muted); font-size: 12px; }
.tile-count { flex: 0 0 auto; min-width: 26px; text-align: center; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--gold); font-size: 12px; font-variant-numeric: tabular-nums; }
.file-chip { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; background: #081b29cc; font-size: 13px; }

/* Worlds list */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.world-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
.world-card { border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; background: linear-gradient(150deg, #10303d99, #081b29cc); display: grid; gap: 10px; }
.world-card--off { opacity: .72; }
.world-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.world-name { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; color: var(--ink); }
.world-name strong { font-size: 16px; }
.world-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.pill.ok { color: var(--ok); border-color: #36c7b066; }
.pill.err { color: var(--err); border-color: #e86c6766; }
.world-stats { list-style: none; padding: 0; margin: 0; display: flex; gap: 18px; flex-wrap: wrap; }
.world-stats li { color: var(--muted); font-size: 12px; }
.world-stats li span { display: block; font-size: 18px; font-weight: 700; color: var(--gold); font-variant-numeric: tabular-nums; }
.world-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.world-actions form { margin: 0; }

/* Painted-image sheet: preview + sliced cells */
.sheet-preview { display: block; width: min(560px, 100%); border: 1px solid var(--line); border-radius: 8px; background: #061119; margin-top: 8px; }
.cell-grid { list-style: none; padding: 0; margin: 12px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); gap: 10px; }
.cell-grid li { display: grid; gap: 4px; justify-items: center; border: 1px solid var(--line); border-radius: 8px; padding: 8px; background: #081b29cc; }
.cell-grid img { width: 72px; height: 72px; object-fit: contain; background: repeating-conic-gradient(#0b1a22 0% 25%, #081420 0% 50%) 50% / 16px 16px; }
.cell-grid select { width: 100%; min-width: 0; font-size: 11px; padding: 4px 6px; }
.cell-grid code { font-size: 11px; }
.cell-grid small { color: var(--muted); font-size: 11px; text-align: center; }

/* AI loading overlay */
.ai-loading { position: fixed; inset: 0; display: grid; place-items: center; background: #020a10cc; z-index: 50; }
.ai-loading[hidden] { display: none; }
.ai-loading .box { display: grid; gap: 12px; justify-items: center; padding: 26px 34px; border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(150deg, #12303d, #05141f); text-align: center; }
.ai-loading .box p { margin: 0; }
.spinner { width: 42px; height: 42px; border-radius: 50%; border: 4px solid #2a4b57; border-top-color: var(--gold); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Advanced (collapsible) sections & active tab buttons */
.btn-ghost.active { border-color: var(--gold); color: var(--gold); }
.advanced { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin: 16px 0 20px; background: #081b29aa; }
.advanced > summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.advanced > summary:hover { color: var(--gold); }
.advanced textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }

/* World hero + guided intro */
.world-hero h1 { font-size: 26px; }
.world-hero h1 code { font-size: 15px; color: var(--muted); }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; }
.intro { background: linear-gradient(150deg, #12364299, #081b29cc); border-color: #2f5b68; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 10px; }
.steps li { position: relative; padding-left: 44px; color: #cdd9d6; font-size: 14px; line-height: 1.55; }
.steps li::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: -1px; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--gold); color: var(--gold); font-weight: 700; font-size: 13px; background: #0a1a24; }
.steps a { color: var(--gold); }
.card > .lead { color: #cdd9d6; font-size: 14px; line-height: 1.55; margin: 4px 0 14px; }

/* Refuge editor: image gallery */
.refuge-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 8px; }
.refuge-tile { margin: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: #061119; display: grid; }
.refuge-tile img { width: 100%; height: 170px; object-fit: cover; background: repeating-conic-gradient(#0b1a22 0% 25%, #081420 0% 50%) 50% / 16px 16px; }
.refuge-tile--empty > .muted { display: grid; place-items: center; height: 170px; border-bottom: 1px solid var(--line); }
.refuge-tile figcaption { display: grid; gap: 3px; padding: 8px 10px; }
.refuge-tile figcaption small { color: var(--muted); font-size: 12px; }
.refuge-tile figcaption code { font-size: 11px; word-break: break-all; }

/* Mobile */
@media (max-width: 720px) {
  .topbar { flex-wrap: wrap; gap: 10px; padding: 12px 14px; }
  .nav { margin-left: 0; gap: 12px; flex-wrap: wrap; }
  .subnav { padding: 10px 14px; gap: 10px; }
  .subnav-tabs { gap: 2px; }
  .tile-list { grid-template-columns: 1fr; }
  main { padding: 16px 14px 50px; }
  .card { padding: 16px 14px; }
  .row { flex-direction: column; align-items: stretch; }
  .row label, .stack label, .row input, .row select { width: 100%; }
  input, select, textarea { min-width: 0; }
  .grid thead { display: none; }
  .grid tr { display: grid; gap: 4px; padding: 10px 0; }
  .grid td { border: 0; padding: 1px 0; }
  .row-actions { flex-wrap: wrap; }
  .stop-card { grid-template-columns: minmax(0, 1fr); }
  .stop-art { min-height: 120px; }
  .asset-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); }
}