:root {
  color-scheme: light;
  --ink: #17201d;
  --muted: #68736f;
  --line: #dfe5e1;
  --paper: #f6f7f4;
  --white: #fff;
  --green: #174f3e;
  --lime: #d9f46b;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); }
button, input, select { font: inherit; }
textarea { font: inherit; }
button { cursor: pointer; }

.topbar {
  position: sticky; top: 0; z-index: 30;
  height: 68px; padding: 0 28px; display: flex; align-items: center; justify-content: space-between;
  background: var(--white); border-bottom: 1px solid var(--line);
}
.brand { color: var(--ink); text-decoration: none; font-weight: 760; letter-spacing: -.03em; display: flex; gap: 10px; align-items: center; }
.brand-mark { width: 25px; height: 25px; border: 2px solid var(--green); border-radius: 5px; position: relative; transform: rotate(-5deg); }
.brand-mark::after { content: ""; position: absolute; inset: 5px; border: 2px solid var(--green); border-radius: 2px; }
.demo-chip { padding: 5px 8px; border-radius: 999px; background: #eaf2ee; color: var(--green); font-size: 10px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.top-actions { display: flex; gap: 10px; }
.button { border: 0; border-radius: 8px; padding: 10px 15px; font-weight: 700; }
.button.ghost { background: transparent; border: 1px solid var(--line); }
.button.primary { background: var(--green); color: white; }
.button.coming-soon {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 10px 8px 13px;
  color: #66716c; background: #f1f3f1; border: 1px dashed #c8ceca; cursor: not-allowed;
}
.button.coming-soon:disabled { opacity: 1; }
.button.coming-soon small {
  padding: 3px 6px; border-radius: 999px; color: #6d756f; background: #dfe3e0;
  font-size: 8px; font-weight: 800; letter-spacing: .06em; line-height: 1; text-transform: uppercase;
}

.app-shell { display: grid; grid-template-columns: 390px 1fr; min-height: calc(100vh - 68px); }
.sidebar { padding: 34px 30px 104px; background: var(--white); border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 28px; overflow: auto; }
.eyebrow { margin: 0 0 8px; color: var(--green); text-transform: uppercase; font-size: 11px; letter-spacing: .14em; font-weight: 800; }
h1 { margin: 0; font-family: Georgia, serif; font-size: 35px; line-height: 1.05; letter-spacing: -.035em; }
.lede { color: var(--muted); line-height: 1.5; margin: 12px 0 0; font-size: 14px; }
.demo-notice { display: grid; gap: 4px; margin-top: 16px; padding: 12px 13px; border: 1px solid #d5dfda; border-left: 4px solid var(--green); border-radius: 8px; background: #f2f7f4; }
.demo-notice strong { color: var(--green); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.demo-notice span { color: var(--muted); font-size: 11px; line-height: 1.45; }
.panel-section { padding-top: 23px; border-top: 1px solid var(--line); }
.workflow-section { padding-top: 0; border-top: 0; }
.section-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; }
.section-actions { display: flex; gap: 8px; }
h2 { margin: 0; font-size: 14px; }
.unit-chip { padding: 3px 7px; background: var(--paper); border-radius: 4px; color: var(--muted); font-size: 11px; font-weight: 700; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
label { color: var(--muted); font-size: 11px; font-weight: 700; }
input { width: 100%; margin-top: 6px; padding: 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink); background: #fbfcfa; outline: none; }
input:focus { border-color: var(--green); box-shadow: 0 0 0 3px #174f3e14; }
select { width: 100%; margin-top: 6px; padding: 9px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink); background: #fbfcfa; }
textarea { width: 100%; resize: vertical; padding: 10px; border: 1px solid var(--line); border-radius: 7px; color: var(--ink); background: #fbfcfa; font-size: 12px; line-height: 1.5; }
.bulk-entry { margin-top: 14px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 11px; }
.bulk-entry summary { cursor: pointer; color: var(--green); font-size: 12px; font-weight: 800; }
.bulk-entry p { margin: 9px 0; color: var(--muted); font-size: 10px; line-height: 1.4; }
.bulk-button { width: 100%; margin-top: 8px; background: #e8eee9; color: var(--green); font-size: 11px; }
.inline-message { min-height: 14px; margin-bottom: 0 !important; }
.switch-row { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.switch-row span { display: flex; flex-direction: column; gap: 3px; }
.switch-row strong { color: var(--ink); font-size: 12px; }
.switch-row small { font-weight: 500; }
.switch-row input { width: 38px; height: 22px; accent-color: var(--green); }
.text-button { color: var(--green); background: none; border: 0; font-size: 12px; font-weight: 800; }
.import-button { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 10px; padding: 11px 12px; border: 1px dashed #9eb1a9; border-radius: 8px; color: var(--green); background: #f5f9f6; cursor: pointer; }
.import-button small { color: var(--muted); font-weight: 500; text-align: right; }
.import-button.step-import { border-style: solid; background: #eef5f1; }
.import-button.step-import b { margin-left: 5px; padding: 2px 5px; border-radius: 999px; color: white; background: var(--green); font-size: 8px; letter-spacing: .05em; text-transform: uppercase; }
.import-button.is-processing { opacity: .68; pointer-events: none; transform: translateX(3px); }
.step-import-status { display: flex; align-items: center; gap: 10px; min-height: 38px; margin: -3px 0 10px; padding: 8px 10px; border-radius: 8px; color: var(--green); background: #f5f9f6; }
.step-import-status[hidden] { display: none; }
.step-progress-ring { width: 20px; height: 20px; flex: 0 0 auto; border: 3px solid #cbd9d2; border-top-color: var(--green); border-radius: 50%; animation: step-progress-spin .8s linear infinite; }
.step-progress-copy { display: flex; min-width: 0; flex-direction: column; gap: 2px; }
.step-progress-copy strong { overflow: hidden; font-size: 11px; line-height: 1.25; text-overflow: ellipsis; white-space: nowrap; }
.step-progress-copy small { color: var(--muted); font-size: 9px; line-height: 1.3; }
.step-import-status.is-complete .step-progress-ring { border-color: var(--green); animation: none; }
.step-import-status.is-error { color: #8a3d32; background: #fbf1ef; }
.step-import-status.is-error .step-progress-ring { border-color: #c98b82; border-top-color: #8a3d32; animation: none; }
@keyframes step-progress-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .step-progress-ring { animation-duration: 1.8s; } }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.parts-list { display: flex; flex-direction: column; gap: 9px; }
.part-card { display: grid; grid-template-columns: 5px 1fr 22px; gap: 10px; padding: 11px; border: 1px solid var(--line); border-radius: 9px; background: #fbfcfa; transition: border-color .15s ease, box-shadow .15s ease, background .15s ease; }
.part-card.is-selected { border-color: var(--green); background: #f3f8f5; box-shadow: 0 0 0 3px #174f3e1f; }
.part-color { border-radius: 4px; }
.part-fields { display: grid; gap: 8px; }
.part-kind { justify-self: start; margin-top: -5px; padding: 2px 5px; border-radius: 3px; background: #e8eeeb; color: var(--muted); font-size: 9px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.part-fields input { margin-top: 3px; padding: 7px; font-size: 12px; }
.part-dimensions { display: grid; grid-template-columns: 1fr auto 1fr .8fr .8fr; gap: 7px; align-items: end; }
.part-dimensions span { padding-bottom: 7px; color: var(--muted); }
.part-rules { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.check-field { display: flex; align-items: center; gap: 7px; padding-top: 18px; color: var(--ink); }
.check-field input { width: 16px; height: 16px; margin: 0; accent-color: var(--green); }
.remove-part { align-self: start; border: 0; background: transparent; color: #9aa39f; font-size: 18px; }
.generate {
  width: 100%;
  margin: 9px 0 0;
  background: var(--lime);
  color: #22301e;
  display: flex;
  justify-content: space-between;
  padding: 12px 11px;
  font-size: 11px;
  box-shadow: 0 7px 18px #17201d26;
}
.generate:hover { transform: translateY(-1px); box-shadow: 0 12px 32px #17201d40; }
.generate:focus-visible { outline: 3px solid #174f3e55; outline-offset: 3px; }
.layout-dock {
  position: fixed;
  top: 134px;
  right: 18px;
  z-index: 15;
  width: 168px;
  padding: 8px;
  border: 1px solid #d7ded9;
  border-radius: 11px;
  background: #ffffffed;
  box-shadow: 0 10px 28px #17201d1a;
  backdrop-filter: blur(8px);
}
.set-summary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 7px;
}
.set-summary:empty { display: none; }
.set-summary:empty + .generate { margin-top: 0; }
.summary-stat { min-width: 0; padding: 9px 7px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.summary-stat strong { display: block; font-size: 17px; }
.summary-stat span { display: block; color: var(--muted); font-size: 8px; line-height: 1.25; text-transform: uppercase; letter-spacing: .04em; }
.summary-stat.hold { background: #f8efeb; border-color: #ead1c8; }

.workspace { min-width: 0; display: grid; grid-template-rows: 54px 1fr auto; }
.workspace-toolbar { position: sticky; top: 68px; z-index: 25; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 12px; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 4px 12px #17201d0a; }
.status-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: #9eaaa5; margin-right: 7px; }
.zoom-controls { display: flex; align-items: center; gap: 9px; }
.zoom-controls button { border: 1px solid var(--line); background: var(--white); width: 27px; height: 27px; border-radius: 6px; }
.zoom-controls .zoom-fit { width: auto; padding: 0 9px; font-size: 11px; font-weight: 700; }
#zoom-label { min-width: 37px; text-align: center; }
.canvas-wrap { position: relative; min-height: 480px; overflow: auto; padding: 28px 224px 56px 34px; display: grid; place-items: start center; background-color: #eef0ec; background-image: radial-gradient(#cdd3cf 1px, transparent 1px); background-size: 18px 18px; }
#layout-canvas { width: min(100%, 900px); height: auto; overflow: visible; filter: drop-shadow(0 16px 22px #24312b20); transform-origin: top center; transition: transform .15s ease; }
.instrument-placement { cursor: pointer; outline: none; }
.instrument-placement:hover, .instrument-placement:focus-visible, .instrument-placement.is-selected { filter: drop-shadow(0 0 5px #174f3eaa); }
.instrument-placement.is-selected > rect:not(.instrument-hitbox) { stroke: #d9f46b; stroke-width: .09; }
.instrument-hitbox { pointer-events: all; }
.instrument-tooltip {
  position: fixed;
  z-index: 40;
  width: max-content;
  max-width: 260px;
  padding: 10px 12px;
  border: 1px solid #d5dfda;
  border-radius: 9px;
  color: var(--ink);
  background: #fffffff2;
  box-shadow: 0 10px 28px #17201d2b;
  pointer-events: none;
  backdrop-filter: blur(6px);
}
.instrument-tooltip strong, .instrument-tooltip span, .instrument-tooltip small { display: block; }
.instrument-tooltip strong { color: var(--green); font-size: 12px; }
.instrument-tooltip span { margin-top: 4px; color: var(--ink); font-size: 11px; line-height: 1.4; }
.instrument-tooltip small { margin-top: 5px; color: var(--muted); font-size: 10px; }
.legend { min-height: 57px; padding: 15px 24px; display: flex; gap: 20px; align-items: center; background: white; border-top: 1px solid var(--line); font-size: 11px; color: var(--muted); }
.legend-item { display: flex; align-items: center; gap: 7px; }
.legend-swatch { width: 10px; height: 10px; border-radius: 3px; }

.library-dialog { width: min(680px, calc(100vw - 32px)); border: 0; border-radius: 16px; padding: 24px; box-shadow: 0 24px 80px #17201d40; }
.library-dialog::backdrop { background: #17201d80; backdrop-filter: blur(3px); }
.library-header { display: flex; justify-content: space-between; align-items: start; }
.library-header h2 { font-family: Georgia, serif; font-size: 28px; }
.dialog-close { border: 0; background: var(--paper); width: 34px; height: 34px; border-radius: 50%; font-size: 21px; }
.library-search { display: block; margin: 20px 0 14px; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tool-card { display: grid; grid-template-columns: 48px 1fr; gap: 11px; align-items: center; padding: 12px; text-align: left; border: 1px solid var(--line); border-radius: 10px; background: white; color: var(--ink); }
.tool-card:hover { border-color: var(--green); background: #f5f9f6; }
.tool-card svg { width: 42px; height: 42px; padding: 7px; border-radius: 8px; color: var(--green); background: #edf3ef; }
.tool-card strong, .tool-card small { display: block; }
.tool-card small { color: var(--muted); margin-top: 3px; }
.library-note { margin: 16px 0 0; color: var(--muted); font-size: 11px; }

@media (max-width: 800px) {
  .topbar { position: static; height: auto; min-height: 68px; padding: 14px 18px; align-items: flex-start; gap: 14px; }
  .top-actions { flex-wrap: wrap; justify-content: flex-end; }
  .top-actions .button { padding: 8px 10px; font-size: 11px; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; }
  .workspace { min-height: 650px; }
  .workspace-toolbar { top: 0; }
  .tool-grid { grid-template-columns: 1fr 1fr; }
  .layout-dock {
    position: static;
    width: auto;
    margin: 12px 16px 0;
    box-shadow: none;
    backdrop-filter: none;
  }
  .set-summary { grid-template-columns: repeat(3, 1fr); }
  .generate { max-width: 210px; margin-left: auto; }
  .canvas-wrap { padding: 28px 24px 56px; }
}