:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0d100d;
  color: #f1f3e9;
  font-synthesis: none;
  --background: #0d100d;
  --surface: #151915;
  --surface-raised: #1b201b;
  --surface-soft: #202620;
  --line: #313831;
  --line-bright: #4a544a;
  --text: #f1f3e9;
  --muted: #939d92;
  --muted-bright: #bdc6b8;
  --accent: #c8f57a;
  --accent-ink: #10150a;
  --move: #84b9ff;
  --rotate: #b9a2ff;
  --subtract: #ff8f76;
  --structure-primary: #f1c66d;
  --structure-secondary: #d88d55;
  --structure-column: #a9c4d2;
  --structure-transfer: #ff8f76;
  --shadow: rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; }
html { min-width: 320px; min-height: 100%; background: var(--background); }
body { margin: 0; min-width: 320px; min-height: 100vh; background: var(--background); color: var(--text); -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.app-shell { min-height: 100vh; }
.topbar { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px clamp(18px, 3vw, 44px); border-bottom: 1px solid var(--line); background: #111511; position: sticky; top: 0; z-index: 20; }
.brand, .topbar-actions, .toolrail, .tool-group, .operation-set, .section-heading, .canvas-instructions, .control-title-row, .panel-heading, .toggle-row { display: flex; align-items: center; }
.brand { gap: 13px; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--accent); border-radius: 11px; color: var(--accent); font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.08em; }
.eyebrow, .section-index, .tool-label { margin: 0; color: var(--muted); font: 700 10px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.14em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin: 4px 0 0; font-size: 17px; line-height: 1.1; font-weight: 650; letter-spacing: -0.02em; }
h2 { margin: 7px 0 0; font-size: clamp(21px, 2vw, 29px); line-height: 1; font-weight: 580; letter-spacing: -0.04em; }
.topbar-actions { justify-content: flex-end; gap: 9px; }
.live-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted-bright); font-size: 12px; }
.live-badge span { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(200, 245, 122, 0.1); }
.quiet-button, .primary-button, .panel-reset, .canvas-reset, .segmented button, .operation-set button { border: 1px solid var(--line); border-radius: 9px; background: var(--surface-raised); min-height: 38px; padding: 0 14px; cursor: pointer; transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease, transform 150ms ease; }
.quiet-button:hover, .panel-reset:hover, .canvas-reset:hover, .segmented button:hover, .operation-set button:hover { border-color: var(--line-bright); background: var(--surface-soft); }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.38; cursor: not-allowed; }
.primary-button { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); font-weight: 720; }
.primary-button:hover { background: #d5ff8d; }
.toolrail { min-height: 74px; gap: 22px; padding: 12px clamp(18px, 3vw, 44px); border-bottom: 1px solid var(--line); background: #0f130f; position: sticky; top: 76px; z-index: 19; }
.tool-group { gap: 12px; }
.tool-group.grow { min-width: 0; }
.tool-divider { width: 1px; height: 34px; background: var(--line); }
.segmented, .operation-set { display: flex; gap: 5px; }
.segmented { padding: 4px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.segmented button { min-height: 31px; padding: 0 11px; border-color: transparent; background: transparent; color: var(--muted); font-size: 12px; }
.segmented button.active { background: var(--accent); color: var(--accent-ink); }
.operation-set button { display: inline-flex; align-items: center; gap: 8px; color: var(--muted-bright); font-size: 12px; }
.operation-key { display: grid; place-items: center; width: 19px; height: 19px; border: 1px solid currentColor; border-radius: 5px; font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.operation-set button[data-operation="deposit"].active { border-color: var(--accent); background: rgba(200, 245, 122, 0.12); color: var(--accent); }
.operation-set button[data-operation="move"].active { border-color: var(--move); background: rgba(132, 185, 255, 0.12); color: var(--move); }
.operation-set button[data-operation="rotate"].active { border-color: var(--rotate); background: rgba(185, 162, 255, 0.12); color: var(--rotate); }
.operation-set button[data-operation="subtract"].active { border-color: var(--subtract); background: rgba(255, 143, 118, 0.12); color: var(--subtract); }
.tool-hint { margin-left: auto; max-width: 280px; color: var(--muted); font-size: 11px; line-height: 1.4; text-align: right; }
.workspace { display: grid; grid-template-columns: minmax(0, 1fr) 330px; align-items: start; gap: 20px; max-width: 1640px; margin: 0 auto; padding: 24px clamp(18px, 3vw, 44px) 56px; }
.design-area { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; }
.section-block, .control-panel { border: 1px solid var(--line); border-radius: 18px; background: var(--surface); box-shadow: 0 22px 60px var(--shadow); }
.section-block { min-width: 0; padding: clamp(18px, 2.4vw, 30px); overflow: hidden; }
.section-heading { justify-content: space-between; gap: 28px; margin-bottom: 23px; }
.section-copy { max-width: 450px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.view-grid { min-width: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 11px; }
.view-card { min-width: 0; padding: 13px; border: 1px solid var(--line); border-radius: 14px; background: #101410; transition: border-color 160ms ease, transform 160ms ease; }
.view-card:hover { border-color: var(--line-bright); transform: translateY(-2px); }
.view-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.view-card h3 { margin: 0; font-size: 12px; font-weight: 680; letter-spacing: 0.04em; text-transform: uppercase; }
.view-card-meta { margin: 4px 0 0; color: var(--muted); font: 600 9px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.view-depth { padding: 5px 7px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted-bright); font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.projection-grid { display: grid; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 10px; background: #090c09; }
.projection-cell { position: relative; aspect-ratio: 1; min-width: 0; padding: 0; border: 1px solid #303830; border-radius: 6px; background: rgba(175, 192, 170, calc(0.025 + var(--density, 0) * 0.13)); cursor: crosshair; overflow: hidden; transition: border-color 120ms ease, background-color 120ms ease, transform 120ms ease; }
.projection-cell:hover { border-color: var(--accent); transform: scale(0.96); }
.projection-cell::after { content: ""; position: absolute; inset: 20%; border: 1px solid transparent; border-radius: 3px; }
.projection-cell.active-occupied::after { border-color: var(--accent); background: rgba(200, 245, 122, 0.28); box-shadow: 0 0 0 2px rgba(200, 245, 122, 0.08); }
.projection-cell.move-source::after { border-color: var(--move); background: rgba(132, 185, 255, 0.3); }
.projection-cell.last-edited { border-color: var(--accent); }
.cell-count { position: absolute; right: 5px; bottom: 4px; color: var(--muted); font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.projection-cell.active-occupied .cell-count { color: var(--accent); }
.view-orientation { display: flex; align-items: center; justify-content: space-between; margin-top: 9px; color: #667066; font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.1em; }
.axon-heading { margin-bottom: 18px; }
.canvas-instructions { flex-wrap: wrap; justify-content: flex-end; gap: 7px; }
.canvas-instructions span { padding: 6px 8px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); font-size: 10px; }
.canvas-frame { position: relative; min-height: clamp(370px, 45vw, 610px); overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: #0a0d0a; }
#axonCanvas { position: absolute; inset: 0; display: block; width: 100%; height: 100%; min-height: 0; cursor: grab; touch-action: none; }
#axonCanvas.dragging { cursor: grabbing; }
.axis-key { position: absolute; left: 17px; bottom: 17px; display: flex; gap: 5px; }
.axis-key span { display: grid; place-items: center; width: 25px; height: 25px; border: 1px solid var(--line); border-radius: 7px; background: rgba(13, 16, 13, 0.84); font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.axis-x { color: var(--subtract); }
.axis-y { color: var(--move); }
.axis-z { color: var(--accent); }
.canvas-stat { position: absolute; top: 16px; left: 16px; min-width: 124px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 9px; background: rgba(13, 16, 13, 0.86); }
.canvas-stat span { display: block; margin-bottom: 4px; color: var(--muted); font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.1em; text-transform: uppercase; }
.canvas-stat strong { font: 650 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.structure-stat { position: absolute; right: 16px; bottom: 16px; max-width: min(310px, calc(100% - 120px)); padding: 11px 13px; border: 1px solid rgba(241, 198, 109, 0.42); border-radius: 9px; background: rgba(13, 16, 13, 0.9); pointer-events: none; }
.structure-stat span, .structure-stat strong, .structure-stat small { display: block; }
.structure-stat span { margin-bottom: 5px; color: var(--structure-primary); font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.1em; text-transform: uppercase; }
.structure-stat strong { font-size: 12px; line-height: 1.25; }
.structure-stat small { margin-top: 5px; color: var(--muted); font: 600 8px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.canvas-reset { position: absolute; top: 16px; right: 16px; min-height: 32px; background: rgba(13, 16, 13, 0.86); color: var(--muted-bright); font-size: 10px; }
.plans-heading { margin-bottom: 8px; }
.plans-copy { margin-bottom: 22px; }
.plan-legend { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.plan-legend span { display: inline-flex; align-items: center; gap: 7px; padding: 6px 8px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); font-size: 9px; white-space: nowrap; }
.plan-legend i { display: block; width: 20px; height: 10px; border: 1px solid #768176; }
.legend-cut { background: #353b35; box-shadow: inset 0 0 0 2px #7d877d; }
.legend-overhead { border-style: dashed !important; background: transparent; }
.legend-grid { position: relative; border: 0 !important; }
.legend-grid::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; border-top: 1px dashed #768176; }
.legend-beam { position: relative; border: 0 !important; }
.legend-beam::before { content: ""; position: absolute; top: 50%; left: 0; right: 0; border-top: 3px solid var(--structure-primary); }
.legend-column { width: 10px !important; height: 10px !important; border: 2px solid #48545b !important; background: #f4f2e9; }
.floor-plan-grid { min-width: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.floor-plan-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #0f130f; transition: border-color 160ms ease, transform 160ms ease; }
.floor-plan-card:hover, .floor-plan-card.active-level { border-color: var(--line-bright); }
.floor-plan-card.active-level { box-shadow: inset 0 0 0 1px rgba(200, 245, 122, 0.22); }
.floor-plan-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.floor-plan-card h3 { margin: 0; font-size: 12px; font-weight: 680; letter-spacing: 0.04em; text-transform: uppercase; }
.floor-plan-card-meta { margin: 4px 0 0; color: var(--muted); font: 600 9px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.level-datum { padding: 6px 8px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted-bright); font: 700 9px/1 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
.floor-plan-card.active-level .level-datum { border-color: var(--accent); color: var(--accent); }
.plan-sheet { position: relative; background: #eceae1; }
.floor-plan-canvas { display: block; width: 100%; aspect-ratio: 1.16; cursor: crosshair; touch-action: manipulation; }
.plan-sheet-note { position: absolute; left: 10px; bottom: 8px; pointer-events: none; color: rgba(31, 35, 31, 0.48); font: 700 7px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.control-panel { position: relative; padding: 20px; }
.panel-heading { justify-content: space-between; gap: 14px; }
.panel-heading h2 { font-size: 23px; }
.panel-reset { min-height: 32px; padding: 0 10px; color: var(--muted); font-size: 10px; }
.model-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 20px 0; overflow: hidden; border: 1px solid var(--line); border-radius: 11px; background: var(--line); }
.model-summary div { padding: 12px 9px; background: #111511; }
.model-summary span, .model-summary strong { display: block; }
.model-summary span { margin-bottom: 6px; color: var(--muted); font-size: 9px; }
.model-summary strong { font: 720 14px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.structure-case-card { margin: -5px 0 20px; padding: 14px; border: 1px solid rgba(241, 198, 109, 0.34); border-radius: 12px; background: #171711; }
.structure-case-kicker { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--structure-primary); font: 700 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.1em; text-transform: uppercase; }
.structure-case-kicker strong { padding: 5px 7px; border: 1px solid rgba(241, 198, 109, 0.34); border-radius: 6px; font-size: 9px; }
.structure-case-card h3 { margin: 12px 0 6px; font-size: 15px; line-height: 1.2; }
.structure-case-card p { margin: 0; color: var(--muted); font-size: 9px; line-height: 1.45; }
.structure-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-top: 13px; }
.structure-metrics span { padding: 8px 6px; border: 1px solid var(--line); border-radius: 7px; color: var(--muted); font-size: 8px; text-align: center; text-transform: uppercase; }
.structure-metrics strong { display: block; margin-bottom: 4px; color: var(--text); font: 720 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.control-stack { display: grid; gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--line); }
.control-block { padding: 14px; background: #111511; }
.control-block.emphasized { background: #171d14; }
.control-title-row { justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.control-title-row label { display: block; margin-bottom: 4px; color: var(--text); font-size: 12px; font-weight: 650; }
.control-title-row small { display: block; color: var(--muted); font-size: 9px; line-height: 1.3; }
.control-title-row output { color: var(--accent); font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
input[type="range"] { width: 100%; height: 4px; margin: 4px 0; accent-color: var(--accent); cursor: pointer; }
.range-scale { display: flex; justify-content: space-between; margin-top: 7px; color: #657065; font: 600 8px/1 ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.toggle-list { display: grid; gap: 1px; margin-top: 15px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--line); }
.toggle-row { position: relative; justify-content: space-between; gap: 16px; padding: 13px 14px; background: #111511; cursor: pointer; }
.toggle-row strong, .toggle-row small { display: block; }
.toggle-row strong { margin-bottom: 4px; font-size: 11px; }
.toggle-row small { color: var(--muted); font-size: 9px; }
.toggle-row input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-ui { position: relative; width: 34px; height: 19px; flex: 0 0 auto; border: 1px solid var(--line-bright); border-radius: 999px; background: #090c09; transition: background-color 150ms ease; }
.toggle-ui::after { content: ""; position: absolute; top: 3px; left: 3px; width: 11px; height: 11px; border-radius: 50%; background: var(--muted); transition: left 150ms ease, background-color 150ms ease; }
.toggle-row input:checked + .toggle-ui { border-color: var(--accent); background: rgba(200, 245, 122, 0.14); }
.toggle-row input:checked + .toggle-ui::after { left: 18px; background: var(--accent); }
.evolution-actions { display: grid; gap: 8px; margin-top: 15px; }
.wide { width: 100%; }
.activity-card { display: flex; align-items: flex-start; gap: 10px; margin-top: 15px; padding: 12px; border: 1px solid var(--line); border-radius: 11px; background: #111511; }
.activity-dot { width: 7px; height: 7px; margin-top: 4px; flex: 0 0 auto; border-radius: 50%; background: var(--accent); }
.activity-card small { color: var(--muted); font-size: 8px; letter-spacing: 0.08em; text-transform: uppercase; }
.activity-card p { margin: 4px 0 0; color: var(--muted-bright); font-size: 10px; line-height: 1.45; }
@media (max-width: 1240px) { .view-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .tool-hint { display: none; } }
@media (max-width: 980px) { .topbar, .toolrail { position: static; } .workspace { grid-template-columns: 1fr; } .control-panel { position: static; } .toolrail { flex-wrap: wrap; } .tool-divider { display: none; } .tool-group.grow { order: 3; width: 100%; } }
@media (max-width: 680px) { .topbar { align-items: flex-start; } .topbar-actions { flex-wrap: wrap; } .live-badge, #exportButton { display: none; } .section-heading { align-items: flex-start; flex-direction: column; gap: 12px; } .view-grid { grid-template-columns: 1fr; } .floor-plan-grid { grid-template-columns: 1fr; } .plan-legend { justify-content: flex-start; } .operation-set { width: 100%; display: grid; grid-template-columns: repeat(2, 1fr); } .operation-set button { justify-content: center; } .tool-group.grow { align-items: flex-start; flex-direction: column; } .canvas-frame { min-height: 390px; } .structure-stat { right: 12px; bottom: 12px; max-width: calc(100% - 100px); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; } }