:root {
  color-scheme: dark;
  --bg: #080a12;
  --panel: #111522;
  --panel-2: #171c2c;
  --panel-3: #0d101a;
  --edge: rgba(226, 232, 255, .13);
  --edge-strong: rgba(226, 232, 255, .24);
  --ink: #f7f3e9;
  --muted: #a6aabd;
  --faint: #6d7288;
  --gold: #ffd36e;
  --cyan: #73e6ff;
  --green: #83e9aa;
  --node-w: 140px;
  --node-h: 116px;
  --column-gap: 24px;
  --corridor-h: 56px;
  --tree-w: 796px;
  --serif: "Palatino Linotype", Palatino, Georgia, serif;
  --sans: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--sans);
  background:
    radial-gradient(60% 44% at 12% 0%, rgba(99, 71, 174, .2), transparent 68%),
    radial-gradient(42% 38% at 94% 16%, rgba(29, 132, 157, .13), transparent 72%),
    linear-gradient(145deg, #10131f, #070911 66%);
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

button, input, a { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
button { color: inherit; }

.app-shell { position: relative; width: min(1580px, 100%); margin: 0 auto; padding: 24px clamp(12px, 2.2vw, 34px) 54px; }
.app-header { display: flex; align-items: center; gap: 18px; }
.back-link {
  display: grid; place-items: center; flex: 0 0 42px; height: 42px;
  color: var(--muted); text-decoration: none; font-size: 24px;
  border: 1px solid var(--edge); border-radius: 50%; background: rgba(255,255,255,.035);
  transition: color .16s, transform .16s, border-color .16s;
}
.back-link:hover { color: var(--gold); transform: translateX(-3px); border-color: rgba(255,211,110,.38); }
.title-block { flex: 1; min-width: 0; }
.eyebrow { color: #bcb1d4; font-size: 9px; font-weight: 900; letter-spacing: .19em; text-transform: uppercase; }
.title-block h1 { margin: 3px 0 3px; font: 800 clamp(28px, 3.6vw, 48px)/.98 var(--serif); letter-spacing: .015em; }
.title-block h1 i { color: var(--gold); font-weight: 500; }
.title-block p { max-width: 760px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.tree-stats { display: grid; grid-template-columns: repeat(3, 82px); gap: 6px; }
.tree-stats > div { padding: 10px 8px; text-align: center; border: 1px solid var(--edge); border-radius: 12px; background: rgba(13,16,26,.72); }
.tree-stats strong, .tree-stats span { display: block; }
.tree-stats strong { font: 800 20px/1 var(--serif); }
.tree-stats span { margin-top: 4px; color: var(--faint); font-size: 7px; font-weight: 900; letter-spacing: .12em; }
.tree-stats .spark-stat { border-color: rgba(255,211,110,.28); }
.tree-stats .spark-stat strong { color: var(--gold); }

.geometry-promise {
  display: grid; grid-template-columns: 34px auto 1fr auto; align-items: center; gap: 12px;
  margin-top: 20px; padding: 11px 13px;
  border: 1px solid rgba(115,230,255,.2); border-radius: 14px;
  background: linear-gradient(90deg, rgba(50,123,143,.11), rgba(14,18,29,.72));
}
.promise-mark { display: grid; place-items: center; width: 30px; height: 30px; color: var(--cyan); border: 1px solid rgba(115,230,255,.25); border-radius: 8px; }
.geometry-promise div:nth-child(2) span, .geometry-promise div:nth-child(2) strong { display: block; }
.geometry-promise div:nth-child(2) span { color: var(--cyan); font-size: 7px; font-weight: 900; letter-spacing: .16em; }
.geometry-promise div:nth-child(2) strong { margin-top: 2px; font: 700 12px var(--serif); }
.geometry-promise p { margin: 0; color: var(--muted); font-size: 9px; text-align: right; }
.geometry-promise button, .quiet-button {
  padding: 8px 11px; color: var(--muted); border: 1px solid var(--edge); border-radius: 9px; background: rgba(255,255,255,.035); cursor: pointer; font-size: 8px; font-weight: 900; letter-spacing: .06em;
}
.geometry-promise button:hover, .geometry-promise button[aria-pressed="true"], .quiet-button:hover { color: var(--cyan); border-color: rgba(115,230,255,.38); background: rgba(115,230,255,.07); }

.view-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 14px 0 10px; padding: 5px; border: 1px solid var(--edge); border-radius: 15px; background: rgba(7,9,16,.65); }
.view-tab { display: grid; grid-template-columns: 28px 1fr; column-gap: 9px; padding: 9px 12px; text-align: left; color: var(--muted); border: 1px solid transparent; border-radius: 10px; background: transparent; cursor: pointer; }
.view-tab > span { grid-row: 1 / 3; display: grid; place-items: center; width: 28px; height: 28px; color: var(--faint); border: 1px solid var(--edge); border-radius: 8px; font-size: 8px; font-weight: 900; }
.view-tab strong { font: 700 12px var(--serif); }
.view-tab small { color: var(--faint); font-size: 7px; }
.view-tab:hover { color: var(--ink); background: rgba(255,255,255,.035); }
.view-tab.active { color: #251b09; border-color: rgba(255,225,156,.78); background: linear-gradient(#ffe8a9, #e4ae43); box-shadow: 0 8px 22px rgba(225,160,56,.15); }
.view-tab.active > span { color: #4d3107; border-color: rgba(82,50,4,.28); }
.view-tab.active small { color: rgba(54,35,7,.64); }

.control-strip { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.branch-tabs { display: flex; gap: 6px; flex: 1; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.branch-tabs::-webkit-scrollbar { display: none; }
.branch-tab { flex: 0 0 auto; display: flex; align-items: center; gap: 7px; padding: 8px 10px; color: var(--muted); border: 1px solid var(--edge); border-radius: 10px; background: rgba(255,255,255,.025); cursor: pointer; font-size: 8px; font-weight: 800; }
.branch-tab i { display: grid; place-items: center; width: 20px; height: 20px; color: var(--branch); border: 1px solid color-mix(in srgb, var(--branch) 38%, transparent); border-radius: 6px; font-style: normal; }
.branch-tab:hover, .branch-tab.active { color: var(--ink); border-color: color-mix(in srgb, var(--branch) 55%, transparent); background: color-mix(in srgb, var(--branch) 10%, #111522); }
.search-box { display: flex; align-items: center; width: min(310px, 30vw); padding: 0 10px; border: 1px solid var(--edge); border-radius: 10px; background: rgba(9,12,20,.75); }
.search-box span { color: var(--faint); }
.search-box input { width: 100%; min-width: 0; padding: 9px 7px; color: var(--ink); border: 0; outline: 0; background: transparent; font-size: 9px; }
.search-box input::placeholder { color: var(--faint); }

.workbench { display: grid; grid-template-columns: minmax(0, 1fr) 332px; gap: 12px; align-items: start; }
.tree-stage, .inspector, .design-notes article { border: 1px solid var(--edge); background: rgba(15,19,31,.92); box-shadow: 0 18px 50px rgba(0,0,0,.28), inset 0 1px rgba(255,255,255,.035); }
.tree-stage { min-width: 0; overflow: hidden; border-radius: 19px; }
.stage-header { display: flex; justify-content: space-between; gap: 24px; min-height: 84px; padding: 16px 17px 13px; border-bottom: 1px solid var(--edge); background: linear-gradient(100deg, rgba(255,255,255,.025), transparent); }
.stage-header h2 { margin: 2px 0 3px; font: 700 24px/1.1 var(--serif); }
.stage-header p { max-width: 780px; margin: 0; color: var(--muted); font-size: 9px; line-height: 1.5; }
.view-verdict { align-self: center; max-width: 190px; padding: 8px 10px; text-align: right; border-right: 2px solid var(--branch-color, var(--gold)); }
.view-verdict span, .view-verdict strong { display: block; }
.view-verdict span { color: var(--branch-color, var(--gold)); font-size: 7px; font-weight: 900; letter-spacing: .15em; }
.view-verdict strong { margin-top: 2px; color: var(--muted); font: 600 10px/1.35 var(--serif); }
.tree-canvas { min-height: 650px; background: radial-gradient(circle at 50% 16%, color-mix(in srgb, var(--branch-color, var(--gold)) 7%, transparent), transparent 28%), #0b0e17; }
.stage-footer { display: flex; gap: 14px; align-items: center; padding: 9px 14px; color: var(--faint); border-top: 1px solid var(--edge); font-size: 7px; font-weight: 800; letter-spacing: .05em; }
.stage-footer > span:first-child { margin-right: auto; color: var(--muted); }
.stage-footer i { display: inline-block; width: 7px; height: 7px; margin-right: 4px; border: 1px solid var(--green); border-radius: 50%; }
.stage-footer i.on { border-color: var(--gold); background: var(--gold); box-shadow: 0 0 6px rgba(255,211,110,.5); }
.stage-footer i.locked { border-color: #51566a; background: #2b2f3b; }

/* Precision Bough: the geometry below is intentionally fixed in integer pixels. */
.bough-viewport { position: relative; min-height: 590px; overflow: auto; scrollbar-color: color-mix(in srgb, var(--branch-color) 35%, #2c3040) #090c14; }
.bough-sheet { width: 920px; min-width: 920px; margin: 0 auto; padding: 4px 24px 30px; }
.bough-head { display: flex; align-items: center; gap: 11px; margin: 14px 14px 10px; padding: 9px 11px; border: 1px solid color-mix(in srgb, var(--branch-color) 27%, var(--edge)); border-radius: 11px; background: color-mix(in srgb, var(--branch-color) 7%, #111522); }
.bough-head > i { display: grid; place-items: center; width: 34px; height: 34px; color: var(--branch-color); border: 1px solid color-mix(in srgb, var(--branch-color) 36%, transparent); border-radius: 9px; font-style: normal; font-size: 17px; }
.bough-head div { flex: 1; }
.bough-head strong, .bough-head small { display: block; }
.bough-head strong { font: 700 14px var(--serif); }
.bough-head small { color: var(--muted); font-size: 8px; }
.track-readout { color: var(--faint); font-size: 7px; font-weight: 900; letter-spacing: .08em; }
.precision-sequence { display: grid; grid-template-columns: 64px var(--tree-w); width: 860px; margin: 0 auto; }
.tier-label { display: flex; flex-direction: column; justify-content: center; padding-right: 10px; text-align: right; }
.tier-label strong { color: var(--muted); font-size: 8px; letter-spacing: .12em; }
.tier-label small { margin-top: 3px; color: var(--faint); font-size: 6px; }
.tier-node-grid { display: grid; grid-template-columns: repeat(5, var(--node-w)); column-gap: var(--column-gap); height: var(--node-h); }
.tree-node {
  --state-color: #555a6b;
  position: relative; z-index: 2; display: grid; grid-template-columns: 52px 1fr; grid-template-rows: 1fr auto; gap: 0 8px;
  width: var(--node-w); height: var(--node-h); padding: 10px;
  color: var(--muted); text-align: left; overflow: hidden;
  border: 1px solid #292f40; border-radius: 12px; background: #141824; cursor: pointer;
  box-shadow: 0 5px 12px rgba(0,0,0,.35), inset 0 1px rgba(255,255,255,.035);
  transition: transform .14s, border-color .14s, background .14s;
}
.tree-node:hover { z-index: 3; transform: translateY(-2px); color: var(--ink); border-color: color-mix(in srgb, var(--state-color) 65%, #fff 5%); background: #191e2d; }
.tree-node.selected { border-color: var(--branch-color); box-shadow: 0 0 0 2px color-mix(in srgb, var(--branch-color) 22%, transparent), 0 9px 24px rgba(0,0,0,.42); }
.tree-node.awakened { --state-color: var(--gold); color: var(--ink); border-color: rgba(255,211,110,.48); background: linear-gradient(145deg, #232233, #171a25); }
.tree-node.available { --state-color: var(--green); border-color: rgba(131,233,170,.34); }
.tree-node.locked { filter: saturate(.45); }
.tree-node.search-dim { opacity: .2; }
.tree-node.just-awakened { animation: node-awaken .8s ease both; }
@keyframes node-awaken { 0% { transform: scale(.82); filter: brightness(2); } 55% { transform: scale(1.06); box-shadow: 0 0 34px var(--gold); } }
.gem-frame { position: relative; grid-row: 1 / 3; width: 52px; height: 52px; align-self: center; border: 1px solid color-mix(in srgb, var(--state-color) 46%, #313748); border-radius: 10px; background: #090c14; overflow: hidden; }
.gem-frame img { display: block; width: 100%; height: 100%; object-fit: cover; }
.tree-node.locked .gem-frame img { opacity: .36; filter: grayscale(.8); }
.gem-frame::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 12px rgba(0,0,0,.58); }
.node-copy { align-self: end; min-width: 0; }
.node-copy span, .node-copy strong { display: block; }
.node-copy span { color: var(--state-color); font-size: 6px; font-weight: 900; letter-spacing: .1em; }
.node-copy strong { margin-top: 3px; min-height: 28px; font: 700 10px/1.15 var(--serif); }
.node-cost { align-self: end; color: var(--faint); font-size: 7px; }
.tree-node.awakened .node-cost { color: var(--gold); }
.node-status { position: absolute; top: 7px; right: 7px; display: grid; place-items: center; width: 15px; height: 15px; color: var(--faint); border: 1px solid #353a4b; border-radius: 50%; background: #0c0f18; font-size: 7px; }
.tree-node.awakened .node-status { color: #241b08; border-color: var(--gold); background: var(--gold); }
.tree-node.available .node-status { color: var(--green); border-color: rgba(131,233,170,.46); }
.connector-label { display: flex; align-items: center; justify-content: flex-end; height: var(--corridor-h); padding-right: 10px; color: transparent; font-size: 6px; font-weight: 900; letter-spacing: .1em; }
.connector-corridor { position: relative; width: var(--tree-w); height: var(--corridor-h); overflow: hidden; }
.connector-segment { position: absolute; display: block; border-radius: 99px; background: #34394a; opacity: .8; }
.connector-segment.active { background: color-mix(in srgb, var(--branch-color) 72%, white 8%); box-shadow: 0 0 8px color-mix(in srgb, var(--branch-color) 24%, transparent); }
.connector-up { left: calc(var(--x1) - 1px); top: 2px; width: 2px; height: 26px; }
.connector-across { left: var(--left); top: 27px; width: var(--width); height: 2px; }
.connector-down { left: calc(var(--x2) - 1px); top: 28px; width: 2px; height: 26px; }
.geometry-on .tier-node-grid { outline: 1px dashed rgba(115,230,255,.18); outline-offset: -1px; background: repeating-linear-gradient(90deg, rgba(115,230,255,.025) 0 var(--node-w), rgba(255,110,128,.04) var(--node-w) calc(var(--node-w) + var(--column-gap))); }
.geometry-on .connector-corridor { outline: 1px dashed rgba(255,211,110,.32); outline-offset: -1px; background: rgba(255,211,110,.035); }
.geometry-on .connector-label { color: rgba(255,211,110,.5); }
.geometry-on .tier-label { background: rgba(115,230,255,.025); }

/* Orchard overview uses a small aligned matrix instead of unreadable spaghetti. */
.overview-wrap { padding: 18px; }
.search-summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 12px; color: var(--muted); font-size: 9px; }
.search-summary strong { color: var(--ink); }
.orchard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(235px, 1fr)); gap: 11px; }
.orchard-card { padding: 13px; border: 1px solid color-mix(in srgb, var(--branch-color) 26%, var(--edge)); border-radius: 14px; background: color-mix(in srgb, var(--branch-color) 5%, #121623); }
.orchard-card header { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 9px; margin-bottom: 12px; }
.orchard-card header i { display: grid; place-items: center; width: 34px; height: 34px; color: var(--branch-color); border: 1px solid color-mix(in srgb, var(--branch-color) 35%, transparent); border-radius: 9px; font-style: normal; }
.orchard-card header strong, .orchard-card header small { display: block; }
.orchard-card header strong { font: 700 13px var(--serif); }
.orchard-card header small { color: var(--faint); font-size: 7px; }
.orchard-card header span { color: var(--branch-color); font: 700 13px var(--serif); }
.mini-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.mini-node { position: relative; height: 28px; padding: 0; border: 1px solid #303546; border-radius: 6px; background: #0b0e17; cursor: pointer; }
.mini-node::before { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: #333849; }
.mini-node.available { border-color: rgba(131,233,170,.38); }
.mini-node.available::before { background: var(--green); box-shadow: 0 0 7px rgba(131,233,170,.3); }
.mini-node.awakened { border-color: rgba(255,211,110,.45); }
.mini-node.awakened::before { background: var(--gold); box-shadow: 0 0 7px rgba(255,211,110,.42); }
.mini-node.match { outline: 2px solid var(--branch-color); outline-offset: 1px; }
.mini-node.filtered { opacity: .12; }
.orchard-card footer { display: flex; justify-content: space-between; align-items: center; margin-top: 11px; color: var(--faint); font-size: 7px; }
.orchard-card footer button { padding: 6px 9px; color: var(--branch-color); border: 1px solid color-mix(in srgb, var(--branch-color) 30%, transparent); border-radius: 7px; background: transparent; cursor: pointer; font-size: 7px; font-weight: 900; }

/* Focus mode has one card row and one connector row at a time. */
.path-wrap { min-height: 650px; padding: 22px 18px 34px; }
.path-legend { width: min(520px, 100%); margin: 0 auto 14px; padding: 9px 11px; color: var(--muted); border: 1px solid var(--edge); border-radius: 10px; background: rgba(255,255,255,.025); font-size: 8px; text-align: center; }
.focus-stack { width: min(520px, 100%); margin: 0 auto; }
.focus-card { display: grid; grid-template-columns: 56px 1fr auto; align-items: center; gap: 11px; width: 100%; min-height: 82px; padding: 11px 12px; text-align: left; color: var(--muted); border: 1px solid #303546; border-radius: 13px; background: #151a27; cursor: pointer; }
.focus-card img { display: block; width: 56px; height: 56px; object-fit: cover; border: 1px solid #343a4d; border-radius: 10px; background: #090c14; }
.focus-card span, .focus-card strong, .focus-card small { display: block; }
.focus-card span { color: var(--branch-color); font-size: 7px; font-weight: 900; letter-spacing: .1em; }
.focus-card strong { margin: 3px 0; color: var(--ink); font: 700 13px var(--serif); }
.focus-card small { font-size: 8px; }
.focus-card > b { color: var(--faint); font-size: 8px; font-weight: 800; }
.focus-card.awakened { border-color: rgba(255,211,110,.46); }
.focus-card.available { border-color: rgba(131,233,170,.4); }
.focus-card.selected { border-color: var(--branch-color); box-shadow: 0 0 0 2px color-mix(in srgb, var(--branch-color) 20%, transparent); }
.path-corridor { position: relative; height: 44px; }
.path-corridor::before { content: ""; position: absolute; left: calc(50% - 1px); top: 0; width: 2px; height: 44px; background: #3b4051; }
.path-corridor.active::before { background: var(--branch-color); box-shadow: 0 0 8px color-mix(in srgb, var(--branch-color) 32%, transparent); }
.path-corridor span { position: absolute; top: 14px; left: calc(50% + 12px); padding: 3px 6px; color: var(--faint); border: 1px solid var(--edge); border-radius: 99px; background: #0b0e17; font-size: 6px; font-weight: 900; }

.empty-state { display: grid; place-items: center; min-height: 560px; padding: 30px; text-align: center; }
.empty-state div { max-width: 420px; }
.empty-state span { color: var(--faint); font-size: 38px; }
.empty-state h3 { margin: 8px 0; font: 700 22px var(--serif); }
.empty-state p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.6; }

.inspector { position: sticky; top: 12px; min-height: 510px; border-radius: 19px; overflow: hidden; }
.inspector-empty { display: grid; place-items: center; min-height: 510px; padding: 30px; text-align: center; }
.inspector-empty .empty-gem { display: grid; place-items: center; width: 72px; height: 72px; margin-bottom: 15px; color: var(--faint); border: 1px dashed var(--edge-strong); border-radius: 17px; font-size: 27px; }
.inspector-empty h3 { margin: 4px 0 8px; font: 700 20px var(--serif); }
.inspector-empty p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.6; }
.inspector-content { padding: 16px; }
.inspector-topline { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.inspector-topline span { color: var(--branch-color); font-size: 7px; font-weight: 900; letter-spacing: .14em; }
.inspector-topline i { color: var(--faint); font-style: normal; font-size: 7px; }
.inspector-content h3 { margin: 5px 0 12px; font: 700 24px/1.08 var(--serif); }
.inspector-gem { display: grid; grid-template-columns: 88px 1fr; gap: 12px; padding: 11px; border: 1px solid color-mix(in srgb, var(--branch-color) 24%, var(--edge)); border-radius: 13px; background: color-mix(in srgb, var(--branch-color) 6%, #0d101a); }
.inspector-gem img { display: block; width: 88px; height: 88px; object-fit: cover; border: 1px solid color-mix(in srgb, var(--branch-color) 35%, #33394b); border-radius: 11px; background: #090c14; }
.inspector-gem div { align-self: center; }
.inspector-gem span, .inspector-gem strong, .inspector-gem small { display: block; }
.inspector-gem span { color: var(--branch-color); font-size: 7px; font-weight: 900; letter-spacing: .11em; }
.inspector-gem strong { margin: 5px 0; font: 700 12px/1.3 var(--serif); }
.inspector-gem small { color: var(--gold); font-size: 8px; }
.fact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 11px 0; }
.fact-grid div { padding: 8px 5px; text-align: center; border: 1px solid var(--edge); border-radius: 9px; background: rgba(255,255,255,.02); }
.fact-grid span, .fact-grid strong { display: block; }
.fact-grid span { color: var(--faint); font-size: 6px; font-weight: 900; letter-spacing: .08em; }
.fact-grid strong { margin-top: 3px; font: 700 11px var(--serif); }
.rescue-card, .wisdom-card { margin-top: 9px; padding: 10px 11px; border: 1px solid var(--edge); border-radius: 10px; background: rgba(255,255,255,.022); }
.rescue-card span, .wisdom-card span { color: var(--faint); font-size: 6px; font-weight: 900; letter-spacing: .13em; }
.rescue-card strong { display: block; margin: 4px 0; font: 700 12px var(--serif); }
.rescue-card p, .wisdom-card p { margin: 0; color: var(--muted); font-size: 8px; line-height: 1.5; }
.wisdom-card p { margin-top: 4px; font-style: italic; }
.inspector-action { width: 100%; margin-top: 11px; padding: 11px 12px; color: #281d09; border: 1px solid #ffdf91; border-radius: 10px; background: linear-gradient(#ffe7a3, #dda43c); cursor: pointer; font-size: 9px; font-weight: 900; }
.inspector-action:hover:not(:disabled) { filter: brightness(1.07); }
.inspector-action:disabled { color: #707588; border-color: #34394a; background: #1b202d; cursor: default; }
.secondary-action { width: 100%; margin-top: 7px; padding: 9px 11px; color: var(--muted); border: 1px solid var(--edge); border-radius: 9px; background: transparent; cursor: pointer; font-size: 8px; font-weight: 800; }
.secondary-action:hover { color: var(--branch-color); border-color: color-mix(in srgb, var(--branch-color) 35%, transparent); }

.design-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.design-notes article { display: flex; gap: 11px; padding: 13px 14px; border-radius: 13px; }
.design-notes article > span { color: var(--faint); font: 700 20px var(--serif); }
.design-notes strong { font: 700 12px var(--serif); }
.design-notes p { margin: 4px 0 0; color: var(--muted); font-size: 8px; line-height: 1.5; }
.toast { position: fixed; left: 50%; bottom: 22px; z-index: 20; transform: translate(-50%, 18px); padding: 10px 15px; color: #251a08; border: 1px solid #ffe49e; border-radius: 99px; background: linear-gradient(#ffeab4,#e3ad4a); box-shadow: 0 12px 35px rgba(0,0,0,.45); opacity: 0; pointer-events: none; transition: .22s; font-size: 9px; font-weight: 900; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

@media (max-width: 1120px) {
  .workbench { grid-template-columns: 1fr; }
  .inspector { position: static; min-height: 0; }
  .inspector-empty { min-height: 260px; }
  .inspector-content { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(320px, 1.2fr); gap: 12px; }
  .inspector-topline, .inspector-content > h3 { grid-column: 1 / -1; }
  .inspector-gem { grid-row: span 3; }
  .fact-grid { margin: 0; }
}

@media (max-width: 780px) {
  .app-shell { padding-top: 14px; }
  .app-header { align-items: flex-start; }
  .tree-stats { grid-template-columns: repeat(3, 58px); }
  .tree-stats > div { padding: 8px 3px; }
  .tree-stats strong { font-size: 16px; }
  .title-block p { font-size: 10px; }
  .geometry-promise { grid-template-columns: 30px 1fr auto; }
  .geometry-promise p { grid-column: 2 / -1; text-align: left; }
  .view-tabs { display: flex; overflow-x: auto; }
  .view-tab { flex: 0 0 225px; }
  .control-strip { flex-wrap: wrap; }
  .branch-tabs { order: 3; flex-basis: 100%; }
  .search-box { flex: 1; width: auto; }
  .stage-header { min-height: 0; }
  .view-verdict { display: none; }
  .stage-footer { overflow-x: auto; white-space: nowrap; }
  .design-notes { grid-template-columns: 1fr; }
  .inspector-content { display: block; }
  .inspector-content > h3 { margin-bottom: 12px; }
  .fact-grid { margin: 11px 0; }
}

@media (max-width: 540px) {
  .app-header { display: grid; grid-template-columns: 40px 1fr; }
  .back-link { width: 40px; height: 40px; }
  .tree-stats { grid-column: 1 / -1; width: 100%; grid-template-columns: repeat(3, 1fr); }
  .title-block h1 { font-size: 29px; }
  .geometry-promise { grid-template-columns: 28px 1fr; }
  .geometry-promise button { grid-column: 1 / -1; }
  .geometry-promise p { grid-column: 1 / -1; }
  .view-tab { flex-basis: 210px; }
  .stage-header { padding: 13px; }
  .stage-header h2 { font-size: 21px; }
  .tree-canvas { min-height: 600px; }
  .bough-viewport { min-height: 600px; }
  .bough-sheet { margin: 0; }
  .bough-head { margin: 10px; }
  .track-readout { max-width: 105px; text-align: right; }
  .overview-wrap { padding: 11px; }
  .orchard-grid { grid-template-columns: 1fr; }
  .inspector-gem { grid-template-columns: 76px 1fr; }
  .inspector-gem img { width: 76px; height: 76px; }
  .toast { width: calc(100% - 24px); text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}