:root {
  color-scheme: dark;
  --bg: #071014;
  --bg-2: #0b171c;
  --panel: #0f1f26;
  --panel-2: #132b32;
  --ink: #ecfbff;
  --muted: #94aeb6;
  --line: rgba(138, 220, 230, 0.22);
  --line-strong: rgba(138, 220, 230, 0.48);
  --cyan: #54d8ee;
  --cyan-2: #20a8bd;
  --amber: #ffbf5c;
  --red: #ff6b6b;
  --green: #7ff0b4;
  --violet: #b797ff;
  --blue: #7ab8ff;
  --font: "Segoe UI", "Atkinson Hyperlegible", Arial, sans-serif;
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --radius: 8px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background:
    linear-gradient(180deg, rgba(84, 216, 238, 0.07), transparent 260px),
    radial-gradient(circle at top right, rgba(255, 191, 92, 0.08), transparent 360px),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
}

a {
  color: var(--cyan);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  background: rgba(7, 16, 20, 0.9);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-shell {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 28px;
}

.brand-link,
.nav-links {
  align-items: center;
  display: flex;
  gap: 0.8rem;
}

.brand-link {
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.mini-orbit,
.orbital-mark {
  background:
    linear-gradient(135deg, transparent 42%, var(--cyan) 43% 51%, transparent 52%),
    radial-gradient(circle, var(--amber) 0 28%, transparent 30%),
    var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: inline-block;
  flex: 0 0 auto;
  height: 34px;
  width: 34px;
}

.nav-links a {
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.5rem 0.65rem;
  text-decoration: none;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  background: rgba(84, 216, 238, 0.1);
  color: var(--ink);
}

.sim-app,
.page-shell {
  margin: 0 auto;
  max-width: 1860px;
  padding: 22px;
  width: 100%;
}

.command-bar {
  align-items: stretch;
  background: rgba(15, 31, 38, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.85rem;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  padding: 14px;
}

.command-home {
  align-content: space-between;
  border-right: 1px solid var(--line);
  display: grid;
  gap: 0.8rem;
  padding-right: 0.85rem;
}

.brand-block {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  min-width: 0;
}

.brand-block strong,
.brand-block span {
  display: block;
}

.brand-block strong {
  font-size: 1.08rem;
  letter-spacing: 0;
}

.brand-block span,
.command-bar label span,
.eyebrow,
.module-group h3,
.metric-card span,
.info-card span,
.scenario-list span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.command-fields,
.control-row,
.command-bar label,
.calibration-row label,
.basis-field {
  min-width: 0;
}

.command-fields {
  align-content: end;
  display: grid;
  gap: 0.7rem;
}

.control-row {
  align-items: end;
  display: grid;
  gap: 0.65rem;
}

.story-controls {
  grid-template-columns: minmax(190px, 1fr) minmax(260px, 1.15fr) minmax(132px, 0.48fr);
}

.geometry-controls {
  grid-template-columns: repeat(8, minmax(76px, 1fr));
}

.command-bar label,
.calibration-row label,
.basis-field {
  display: grid;
  gap: 0.25rem;
}

.command-bar input,
.command-bar select,
.module-search input,
.calibration-row input,
.basis-field textarea,
.export-section textarea {
  background: #071217;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--ink);
  min-width: 0;
  padding: 0.5rem 0.6rem;
}

.wide-control {
  grid-column: span 2;
  min-width: 0;
}

.toggle-label {
  align-items: end;
  min-width: 78px;
}

.toggle-label input {
  accent-color: var(--cyan);
  height: 32px;
  width: 32px;
}

.command-bar em,
.calibration-row em {
  color: var(--muted);
  font-size: 0.72rem;
  font-style: normal;
}

.command-actions,
.tool-rail,
.floor-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.command-actions {
  align-self: end;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
}

.icon-button,
.ghost-button,
.tool-rail button,
.button {
  background: rgba(84, 216, 238, 0.1);
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.52rem 0.62rem;
  text-decoration: none;
}

.button.primary {
  background: var(--cyan);
  color: #041114;
}

.intro-strip,
.export-band {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 24px 2px;
}

.compact-intro {
  padding: 14px 2px 12px;
}

.intro-strip h1,
.intro-band h1 {
  font-size: clamp(2rem, 4vw, 4.2rem);
  letter-spacing: 0;
  line-height: 0.95;
  margin: 0 0 0.7rem;
  max-width: 940px;
}

.compact-intro h1 {
  font-size: clamp(1.4rem, 2vw, 2.35rem);
  line-height: 1.05;
  margin-bottom: 0.35rem;
}

.intro-strip p,
.lede {
  color: #c9dde2;
  font-size: 1.08rem;
  margin: 0;
  max-width: 980px;
}

.mode-note {
  border: 1px solid rgba(255, 191, 92, 0.45);
  border-radius: var(--radius);
  min-width: 220px;
  padding: 0.85rem;
}

.mode-note span {
  color: var(--amber);
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.workbench {
  display: grid;
  gap: 16px;
  grid-template-columns: 280px minmax(760px, 1fr) 310px;
  margin-top: 14px;
  min-width: 0;
}

.module-panel,
.floor-editor,
.inspector-panel,
.export-section,
.info-card,
.scenario-list article {
  background: rgba(15, 31, 38, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.module-panel,
.inspector-panel {
  max-height: calc(100vh - 112px);
  overflow: auto;
  padding: 14px;
  position: sticky;
  top: 86px;
}

.floor-editor {
  min-width: 0;
  padding: 14px;
}

.workbench > * {
  min-width: 0;
}

.panel-head,
.editor-head {
  align-items: start;
  display: grid;
  gap: 1rem;
}

.panel-head {
  grid-template-columns: minmax(0, 1fr) auto;
}

.editor-head {
  grid-template-columns: minmax(0, 1fr) auto;
}

h2,
h3,
p {
  margin-top: 0;
}

.panel-head h2 {
  font-size: clamp(1.2rem, 1.6vw, 1.5rem);
  line-height: 1.1;
  margin: 0;
}

.editor-head h2 {
  font-size: clamp(1.45rem, 2.2vw, 2.2rem);
  line-height: 1.15;
  margin: 0;
}

.plan-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.45rem;
}

.plan-stats span {
  background: rgba(84, 216, 238, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.25rem 0.45rem;
}

.module-search {
  margin: 14px 0;
}

.module-search input {
  width: 100%;
}

.module-group {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.module-button {
  align-items: center;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--ink);
  display: flex;
  gap: 0.7rem;
  margin: 0 0 0.5rem;
  padding: 0.64rem;
  text-align: left;
  width: 100%;
}

.module-button[data-selected="true"] {
  border-color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(84, 216, 238, 0.35);
}

.module-glyph {
  align-items: center;
  background: #071217;
  border: 1px solid currentColor;
  border-radius: 7px;
  display: inline-flex;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 900;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.module-copy strong,
.module-copy em {
  display: block;
}

.module-copy em {
  color: var(--muted);
  font-size: 0.8rem;
  font-style: normal;
}

.sizing-inspector {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.sizing-inspector p,
.sizing-inspector small {
  color: var(--muted);
}

.calibration-row {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 1fr 1fr;
}

.basis-field textarea {
  min-height: 88px;
  resize: vertical;
}

.floor-tabs button {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  font-family: var(--mono);
  height: 42px;
  padding: 0;
  width: 42px;
}

.floor-tabs {
  flex-wrap: nowrap;
  justify-content: end;
}

.floor-tabs button[data-active="true"] {
  background: var(--cyan);
  color: #051115;
}

.grid-frame {
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: 26px auto;
  margin-top: 14px;
}

.axis {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  position: relative;
}

.axis-top {
  grid-column: 2;
}

.axis-left {
  grid-row: 2;
}

.axis-top span {
  position: absolute;
  top: 0;
}

.axis-left span {
  position: absolute;
  right: 8px;
}

.floor-grid {
  --cell: minmax(0, 1fr);
  background:
    linear-gradient(rgba(84, 216, 238, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(84, 216, 238, 0.045) 1px, transparent 1px),
    #081318;
  border: 2px solid rgba(84, 216, 238, 0.72);
  border-radius: var(--radius);
  display: grid;
  grid-column: 2;
  grid-row: 2;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  grid-template-rows: repeat(var(--rows), minmax(0, 1fr));
  min-height: 0;
  aspect-ratio: var(--plan-ratio);
  overflow: hidden;
  position: relative;
}

.grid-cell {
  background: transparent;
  border: 0;
  min-width: 0;
  padding: 0;
}

.grid-cell[data-footprint="false"] {
  background: rgba(255, 255, 255, 0.018);
}

.grid-cell[data-footprint="true"] {
  background: rgba(127, 240, 180, 0.018);
}

.grid-cell[data-rail="true"] {
  background: rgba(84, 216, 238, 0.1);
}

.grid-cell[data-rail-connected="true"] {
  background: rgba(127, 240, 180, 0.18);
}

.footprint-overlay,
.lot-label,
.street-edge-label,
.scale-bar {
  pointer-events: none;
}

.footprint-overlay {
  align-items: start;
  background: rgba(127, 240, 180, 0.035);
  border: 2px dashed rgba(127, 240, 180, 0.78);
  border-radius: 4px;
  display: flex;
  grid-column: 1;
  grid-row: 1;
  justify-content: end;
  padding: 0.42rem;
  z-index: 1;
}

.footprint-overlay span,
.lot-label,
.street-edge-label,
.scale-bar em {
  color: rgba(236, 251, 255, 0.78);
  font-family: var(--mono);
  font-size: 0.62rem;
  font-style: normal;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.lot-label {
  background: rgba(7, 16, 20, 0.82);
  border: 1px solid rgba(84, 216, 238, 0.38);
  border-radius: 4px;
  left: 8px;
  padding: 0.28rem 0.4rem;
  position: absolute;
  top: 8px;
  z-index: 5;
}

.street-edge-label {
  background: rgba(255, 159, 122, 0.16);
  border-left: 3px solid #ff9f7a;
  bottom: 0;
  padding: 0.35rem 0.45rem;
  position: absolute;
  right: 0;
  top: 0;
  writing-mode: vertical-rl;
  z-index: 5;
}

.scale-bar {
  align-items: center;
  bottom: 10px;
  display: flex;
  gap: 0.35rem;
  left: 10px;
  position: absolute;
  z-index: 5;
}

.scale-bar span {
  border-bottom: 3px solid var(--ink);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  height: 8px;
  width: clamp(40px, 19.4%, 140px);
}

.placed-module {
  align-items: start;
  background: rgba(84, 216, 238, 0.16);
  border: 1px solid currentColor;
  border-radius: 5px;
  color: var(--cyan);
  display: grid;
  grid-template-rows: auto 1fr auto;
  justify-items: start;
  min-width: 0;
  overflow: hidden;
  padding: 0.42rem;
  position: relative;
  text-align: left;
  z-index: 2;
}

.placed-module[data-selected="true"] {
  box-shadow: 0 0 0 2px var(--ink), 0 0 22px rgba(84, 216, 238, 0.45);
  z-index: 4;
}

.placed-module[data-rail-problem="true"] {
  border-style: dashed;
  box-shadow: inset 0 0 0 1px rgba(255, 107, 107, 0.6);
}

.placed-module strong {
  color: var(--ink);
  font-family: var(--mono);
  font-size: clamp(0.54rem, 0.75vw, 0.78rem);
  line-height: 1;
}

.placed-module em {
  color: rgba(236, 251, 255, 0.76);
  font-family: var(--mono);
  font-size: clamp(0.45rem, 0.65vw, 0.68rem);
  font-style: normal;
}

.mod-sleep { color: #70ddff; background: rgba(112, 221, 255, 0.14); }
.mod-waste { color: #d8b4ff; background: rgba(216, 180, 255, 0.14); }
.mod-shower { color: #7ab8ff; background: rgba(122, 184, 255, 0.16); }
.mod-wash { color: #9ee6ff; background: rgba(158, 230, 255, 0.14); }
.mod-podcast { color: #ffbf5c; background: rgba(255, 191, 92, 0.15); }
.mod-compute { color: #b797ff; background: rgba(183, 151, 255, 0.15); }
.mod-concierge { color: #7ff0b4; background: rgba(127, 240, 180, 0.12); }
.mod-robot, .mod-loading { color: #ff9f7a; background: rgba(255, 159, 122, 0.15); }
.mod-plant { color: #89f7d0; background: rgba(137, 247, 208, 0.13); }
.mod-stair { color: #ff6b6b; background: rgba(255, 107, 107, 0.13); }
.mod-lift, .mod-shaft { color: #f1f5f9; background: rgba(241, 245, 249, 0.12); }
.mod-rail,
.mod-switch {
  align-items: center;
  background: rgba(127, 240, 180, 0.34);
  border-color: rgba(127, 240, 180, 0.68);
  border-radius: 0;
  color: var(--green);
  justify-content: center;
  min-height: 0;
  padding: 0;
}

.mod-rail {
  border-left: 0;
  border-right: 0;
}

.mod-rail span,
.mod-rail strong,
.mod-rail em {
  display: none;
}

.mod-switch .rail-mark {
  color: #031114;
  display: block;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 900;
}

.tool-rail {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 12px;
}

.status-line {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  margin: 12px 0 0;
}

.metric-stack {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: 1fr 1fr;
}

.metric-card {
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0.7rem;
}

.metric-card strong {
  display: block;
  font-family: var(--mono);
  font-size: 1.15rem;
  margin-top: 0.25rem;
}

.metric-card.good {
  border-color: rgba(127, 240, 180, 0.35);
}

.metric-card.warn {
  border-color: rgba(255, 191, 92, 0.45);
}

.warning-box {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 14px;
}

.warning-box ul {
  color: #ffd9a3;
  font-size: 0.9rem;
  margin: 0;
  padding-left: 1.1rem;
}

.export-section {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(280px, 0.45fr) 1fr;
  margin-top: 18px;
  padding: 18px;
}

.export-section textarea {
  font-family: var(--mono);
  min-height: 260px;
  resize: vertical;
  width: 100%;
}

.intro-band {
  padding: 60px 0 28px;
}

.intro-band.compact {
  border-bottom: 1px solid var(--line);
  padding-top: 28px;
}

.card-grid,
.scenario-list {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 20px;
}

.info-card,
.scenario-list article {
  padding: 22px;
}

.info-card h2,
.scenario-list h2 {
  margin-bottom: 0.6rem;
}

.info-card p,
.scenario-list p,
.site-footer p {
  color: var(--muted);
}

.scenario-list article {
  min-height: 220px;
}

.scenario-list span {
  color: var(--cyan);
}

.export-band {
  background: rgba(15, 31, 38, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-top: 18px;
  padding: 22px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin-top: 28px;
  padding: 22px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.top-button {
  background: var(--cyan);
  border: 0;
  border-radius: 50%;
  bottom: 22px;
  color: #051115;
  font-size: 0.78rem;
  font-weight: 900;
  height: 48px;
  opacity: 0;
  position: fixed;
  right: 22px;
  transform: translateY(12px);
  transition: 0.2s ease;
  width: 48px;
  z-index: 30;
}

.top-button.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1440px) {
  .workbench {
    grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  }

  .module-panel {
    max-height: none;
    position: static;
  }

  .inspector-panel {
    grid-column: 1 / -1;
    max-height: none;
    position: static;
  }
}

@media (max-width: 1180px) {
  .command-bar {
    grid-template-columns: 1fr;
  }

  .command-home {
    align-items: center;
    border-bottom: 1px solid var(--line);
    border-right: 0;
    grid-template-columns: minmax(0, 1fr) auto;
    padding-bottom: 0.85rem;
    padding-right: 0;
  }

  .command-actions {
    grid-template-columns: repeat(4, minmax(68px, 1fr));
  }

  .story-controls {
    grid-template-columns: minmax(170px, 1fr) minmax(230px, 1.15fr) minmax(130px, 0.5fr);
  }

  .geometry-controls {
    grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  }

  .editor-head {
    grid-template-columns: 1fr;
  }

  .floor-tabs {
    justify-content: start;
    flex-wrap: wrap;
  }
}

@media (max-width: 860px) {
  .nav-shell,
  .intro-strip,
  .export-band,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .command-bar,
  .workbench,
  .export-section,
  .card-grid,
  .scenario-list {
    grid-template-columns: 1fr;
  }

  .command-home {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .command-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .story-controls {
    grid-template-columns: 1fr;
  }

  .module-panel,
  .inspector-panel {
    max-height: none;
    position: static;
  }

  .floor-grid {
    min-height: 420px;
    overflow: auto;
  }

  .metric-stack {
    grid-template-columns: 1fr;
  }
}