/* The builder: shelf, table, panel. It fills the window under the header and keeps the page itself from scrolling. */

body[data-page="build"] main { padding-bottom: 0; }
body[data-page="build"] .tabbar { display: none; }
.builder {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr) 340px;
  grid-template-rows: 48px minmax(0, 1fr);
  grid-template-areas: "bar bar bar" "shelf table panel";
  height: calc(100svh - var(--top-h) - 1px);
  min-height: 560px;
  background: var(--bg);
}
.b-bar { grid-area: bar; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 0 12px; border-bottom: var(--border); background: var(--bg-2); }
.b-bar-left, .b-bar-right { display: flex; align-items: center; gap: 6px; }
.b-count { font-size: 11.5px; letter-spacing: 0.1em; color: var(--muted); margin-left: 8px; }
.icon-btn[disabled] { opacity: 0.35; cursor: default; }
.run-btn { gap: 8px; }
.play { width: 0; height: 0; border-left: 8px solid currentColor; border-top: 5px solid transparent; border-bottom: 5px solid transparent; display: inline-block; }
.add-btn { display: none; }

/* ---------- shelf ---------- */
.shelf { grid-area: shelf; display: grid; grid-template-columns: 44px minmax(0, 1fr); min-height: 0; border-right: var(--border); background: var(--bg-2); transition: background var(--t-fast) var(--ease); }
.shelf.drop-delete { background: color-mix(in srgb, var(--bad) 12%, var(--bg-2)); }
.shelf.drop-delete .shelf-list { opacity: 0.45; }
.shelf-rail { display: grid; align-content: start; gap: 6px; padding: 10px 6px; border-right: var(--border); }
.rail-btn { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; border: 1px solid color-mix(in srgb, var(--ink-cat) 40%, transparent); background: color-mix(in srgb, var(--ink-cat) 18%, transparent); color: color-mix(in srgb, var(--ink-cat) 75%, #fff); cursor: pointer; }
.rail-btn:hover { background: color-mix(in srgb, var(--ink-cat) 32%, transparent); }
.rail-btn .cat-icon { background: none; width: auto; height: auto; }
.shelf-main { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-height: 0; }
.shelf-top { padding: 10px; border-bottom: var(--border); }
.shelf-search { height: 38px; font-size: 14px; border-radius: var(--r-pill); }
.shelf-list { overflow: auto; padding: 8px 10px 20px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; align-content: start; overscroll-behavior: contain; }
.shelf-group { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; justify-items: start; scroll-margin-top: 8px; }
body[data-page="build"] .toasts { bottom: 96px; }
.shelf-head { display: flex; align-items: center; gap: 8px; font-size: 12.5px; margin: 4px 0 2px; }
.shelf-head b { font-weight: 600; color: color-mix(in srgb, var(--ink-cat) 70%, #fff); }
.shelf-head .muted { font-size: 12px; }
.shelf-head .cat-icon { width: 18px; height: 18px; border-radius: 5px; }
.shelf-blk { cursor: grab; touch-action: none; user-select: none; }
.shelf-blk:hover { border-color: var(--ink-cat); }
.shelf-foot { padding: 9px 12px; border-top: var(--border); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.shelf-none { padding: 20px 6px; }

/* ---------- table ---------- */
.table { grid-area: table; position: relative; min-width: 0; min-height: 0; overflow: hidden; }
.table-scroll { position: absolute; inset: 0; overflow: auto; background-color: var(--bg); background-image: radial-gradient(rgba(240, 230, 214, 0.07) 1px, transparent 1.2px); background-size: calc(20px * var(--zoom, 1)) calc(20px * var(--zoom, 1)); cursor: default; }
.table-scroll.panning { cursor: grabbing; }
.plane { position: relative; transform-origin: 0 0; }
.plane .stack { position: absolute; display: grid; gap: 4px; justify-items: start; }
.stack-list { display: grid; gap: 4px; justify-items: start; }
.stack-label { display: flex; align-items: center; gap: 10px; height: 22px; font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.stack-label.loose { color: var(--warn); }
.stack-tools { display: inline-flex; gap: 2px; opacity: 0.55; transition: opacity var(--t-fast) var(--ease); }
.stack:hover .stack-tools, .stack-tools:focus-within { opacity: 1; }
.icon-btn.tiny { width: 24px; height: 24px; }
.icon-btn.tiny .play { border-left-width: 7px; border-top-width: 4.5px; border-bottom-width: 4.5px; }
.table .blk { cursor: grab; touch-action: none; user-select: none; }
.table .blk.selected { outline: 2px solid color-mix(in srgb, var(--ink-cat) 80%, #fff); outline-offset: 2px; }
.table .blk-mouth { min-height: 26px; }
.table .blk-mouth:empty { border: 1px dashed color-mix(in srgb, var(--ink-cat) 35%, transparent); border-radius: 6px; margin: 4px 10px 4px 14px; min-width: 150px; }
body.dragging, body.dragging * { cursor: grabbing !important; }
.ghost-layer { position: fixed; inset: 0; pointer-events: none; z-index: 70; }
.stack.ghost { position: fixed; display: grid; gap: 4px; justify-items: start; transform-origin: 0 0; filter: drop-shadow(0 16px 24px rgba(0, 0, 0, 0.55)); opacity: 0.94; }
.snap-line { position: absolute; width: 150px; height: 4px; border-radius: 2px; background: var(--ink); box-shadow: 0 0 0 3px rgba(240, 230, 214, 0.15); pointer-events: none; z-index: 5; }

.zoom-box { position: absolute; top: 12px; right: 12px; display: flex; align-items: center; gap: 2px; padding: 3px; border-radius: var(--r-pill); border: var(--border); background: color-mix(in srgb, var(--surface) 90%, transparent); backdrop-filter: blur(8px); z-index: 4; }
.zoom-box[hidden] { display: none; }
.zoom-box .icon-btn { width: 30px; height: 30px; font-size: 17px; }
.zoom-label { font-size: 11.5px; color: var(--muted); min-width: 40px; text-align: center; }

.table-empty { position: absolute; left: 50%; top: 42%; transform: translate(-50%, -50%); width: min(720px, calc(100% - 40px)); display: grid; justify-items: center; gap: 12px; text-align: center; pointer-events: none; z-index: 2; }
.table-empty[hidden] { display: none; }
.table-empty h2 { font-size: clamp(34px, 3.4vw, 46px); }
.table-empty p { max-width: 34em; }
.recipe-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 12px; width: 100%; pointer-events: auto; }
.recipe-card { display: grid; gap: 8px; align-content: start; padding: 16px; border-radius: var(--r); border: var(--border); background: var(--surface); text-align: left; cursor: pointer; color: var(--ink); transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease); }
.recipe-card:hover { border-color: var(--line-3); transform: translateY(-2px); }
.recipe-card .label { color: var(--accent-ink); }
.recipe-text { font: italic 400 18px/1.3 var(--font-display); }

.table-ask { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); width: min(640px, calc(100% - 32px)); display: grid; gap: 8px; z-index: 4; }
.table-ask .ask { background: color-mix(in srgb, var(--surface) 94%, transparent); backdrop-filter: blur(8px); }
.ask-notes { position: relative; padding: 12px 40px 12px 14px; border-radius: var(--r); border: 1px solid color-mix(in srgb, var(--warn) 30%, transparent); background: color-mix(in srgb, var(--surface-2) 96%, transparent); font-size: 13.5px; color: var(--ink-2); }
.ask-notes.bad { border-color: color-mix(in srgb, var(--bad) 45%, transparent); }
.ask-notes ul { display: grid; gap: 4px; }
.ask-notes .icon-btn { position: absolute; top: 6px; right: 6px; }

/* ---------- panel ---------- */
.panel { grid-area: panel; display: grid; grid-template-rows: auto minmax(0, 1fr); min-height: 0; border-left: var(--border); background: var(--bg-2); }
.tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: var(--border); }
.tab { height: 44px; border: 0; background: none; color: var(--muted); font: 500 12px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; cursor: pointer; }
.tab[aria-pressed="true"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent-ink); }
.pane { overflow: auto; padding: 18px 18px 40px; display: grid; gap: 16px; align-content: start; overscroll-behavior: contain; }
.pane[hidden] { display: none; }
.panel-seal { display: grid; justify-items: center; gap: 6px; text-align: center; padding-bottom: 6px; }
.panel-seal .seal-name { font-size: 28px; margin-top: 6px; }
.panel-seal .fine { max-width: 26em; }
.panel-rules { display: grid; gap: 12px; }
.panel-rules li { display: grid; gap: 4px; padding-left: 12px; border-left: 2px solid color-mix(in srgb, var(--accent-ink) 55%, transparent); }
.panel-rules p { font: 400 18.5px/1.32 var(--font-display); }
.panel-empty { font-size: 14.5px; }
.panel-box { padding: 12px 14px; border-radius: var(--r); border: var(--border); background: var(--surface); display: grid; gap: 6px; font-size: 14px; }
.panel-box.todo { border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
.panel-box.todo .label { color: var(--bad); }
.panel-box.todo ul { display: grid; gap: 5px; padding-left: 16px; list-style: disc; color: var(--ink-2); }
.panel-box.ready { border-color: color-mix(in srgb, var(--good) 40%, transparent); }
.panel-box.limits { border-style: dashed; }
.panel-box.flash { animation: flash 0.9s var(--ease); }
@keyframes flash { 30% { background: color-mix(in srgb, var(--bad) 18%, var(--surface)); } }
.panel-keys { display: grid; gap: 6px; }

.log-nums { display: grid; grid-template-columns: repeat(3, 1fr); border-radius: var(--r); border: var(--border); overflow: hidden; }
.log-nums > div { display: grid; gap: 4px; padding: 12px; text-align: center; background: var(--surface); }
.log-nums > div + div { border-left: var(--border); }
.log-nums b { font: 400 24px/1 var(--font-display); }
.log-rule { display: grid; gap: 8px; }
.log-rule h4 { font: 400 20px/1.2 var(--font-display); }
.log-steps { display: grid; gap: 7px; }
.log-steps li { display: grid; grid-template-columns: 16px 1fr; gap: 8px; font-size: 14px; padding-left: calc(var(--depth, 0) * 12px - 12px); }
.log-steps li:first-child { padding-left: 0; }
.log-steps .mark { color: var(--good); }
.log-steps li.skipped .mark, .log-steps li.note .mark { color: var(--muted); }
.log-steps li.skipped { color: var(--muted); }
.log-steps li.stopped .mark { color: var(--warn); }
.log-steps .detail { display: block; color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.log-done { padding-top: 8px; border-top: var(--border); letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- narrow screens: table first, the shelf as a drawer, the panel under it ---------- */
@media (max-width: 1180px) {
  .builder { grid-template-columns: 270px minmax(0, 1fr) 300px; }
}
@media (max-width: 980px) {
  .builder { grid-template-columns: 1fr; grid-template-rows: 48px 62svh auto; grid-template-areas: "bar" "table" "panel"; height: auto; }
  body[data-page="build"] #foot { display: block; }
  body[data-page="build"] .tabbar { display: flex; }
  .add-btn { display: inline-flex; }
  .shelf { position: fixed; left: 0; right: 0; bottom: 0; height: 58svh; z-index: 45; border-top: var(--border); border-right: 0; border-radius: 18px 18px 0 0; transform: translateY(105%); transition: transform var(--t) var(--ease); box-shadow: 0 -20px 40px rgba(0, 0, 0, 0.5); }
  body.shelf-open .shelf { transform: none; }
  .panel { border-left: 0; border-top: var(--border); }
  .pane { overflow: visible; }
  .recipe-cards { grid-template-columns: 1fr; }
  .table-empty { top: 40%; }
  .table-empty p { display: none; }
  .b-count { display: none; }
}
@media (max-width: 560px) {
  .table-ask .ask { flex-wrap: nowrap; border-radius: var(--r-pill); padding: 4px 4px 4px 12px; }
  .table-ask .ask-input { order: 0; flex-basis: auto; }
  .table-ask .ask-go { order: 0; width: auto; }
  .table-ask .ask-label { display: none; }
  .recipe-card { padding: 12px; }
  .recipe-text { font-size: 16px; }
  .run-btn { padding: 0 10px; }
}