:root {
  --trace: #f4f1e8;
  --sheet: #efe9d8;
  --cyan: #1a6b8a;
  --ink: #1c2430;
  --mute: #6a7380;
  --risk: #c45c26;
  --ok: #2a7a62;
  --display: "Instrument Serif", "Songti SC", serif;
  --sans: "Noto Sans SC", "PingFang SC", sans-serif;
  --mono: "DM Mono", ui-monospace, Menlo, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

section[id] {
  scroll-margin-top: 74px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--trace);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-link {
  color: #9fd4e8;
  text-decoration: underline;
  text-underline-offset: 3px;
}

button {
  font-family: inherit;
  cursor: pointer;
}

.ink-trace {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 1;
  opacity: 0.22;
  background-image: url("images/texture.webp");
  background-size: 200px auto;
  mix-blend-mode: multiply;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 12px;
  top: 8px;
  z-index: 40;
  background: var(--cyan);
  color: #fff;
  padding: 6px 10px;
}

.blueprint-rail {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 22px;
  background: rgba(244, 241, 232, 0.94);
  border-bottom: 1px solid var(--cyan);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 26px;
}

.brand small {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--mute);
  letter-spacing: 0.14em;
}

.floor-mark {
  width: 22px;
  height: 22px;
  border: 2px solid var(--cyan);
  box-shadow: inset 6px 6px 0 var(--cyan);
}

.plate-nav {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 14px;
}

.plate-nav a.is-active {
  color: var(--cyan);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.plate-nav .live {
  background: var(--cyan);
  color: #fff;
  padding: 4px 10px;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: var(--cyan);
  color: #fff;
  border: 0;
  width: 42px;
  height: 42px;
  font-family: var(--display);
  font-size: 22px;
}

.hero {
  position: relative;
  z-index: 2;
  padding: 36px 40px 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.clause-wash {
  background: var(--trace);
}

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin: 0 0 10px;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.18;
}

h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.1rem);
  margin: 0 0 18px;
}

.floor-plate {
  list-style: none;
  margin: 0 0 22px;
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  border: 1px dashed var(--cyan);
  background: rgba(26, 107, 138, 0.04);
}

.floor-plate li {
  min-height: 72px;
  padding: 10px;
  border: 1px solid var(--cyan);
  font-family: var(--display);
  font-size: 18px;
  background: #fff;
}

.floor-plate li small {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--mute);
}

.ripple-bay.is-empty,
.floor-plate li.is-vacant {
  background: repeating-linear-gradient(45deg, transparent, transparent 6px, rgba(196, 92, 38, 0.18) 6px, rgba(196, 92, 38, 0.18) 12px);
  border-color: var(--risk);
}

.lead {
  margin: 0 0 16px;
  max-width: 54em;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.chip {
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--cyan);
  padding: 3px 8px;
  color: var(--cyan);
}

.chip.warn {
  border-color: var(--risk);
  color: var(--risk);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.btn {
  display: inline-block;
  padding: 10px 16px;
  font-size: 14px;
}

.btn-fill {
  background: var(--cyan);
  color: #fff;
}

.btn-ghost {
  border: 1px solid var(--ink);
}

.hero figure {
  margin: 0;
}

.hero img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border: 1px solid rgba(26, 107, 138, 0.25);
}

.sheet {
  position: relative;
  z-index: 2;
  padding: 48px 40px 16px;
  max-width: 1080px;
  margin: 0 auto;
}

.sheet-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin: 0 0 8px;
}

.sheet-head h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  margin: 0 0 8px;
}

.bay-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.bay-row article {
  background: var(--sheet);
  padding: 14px 16px 6px;
  border-top: 2px solid var(--cyan);
}

.bay-row ul,
.rule-list {
  padding-left: 1.1em;
}

.cam-share {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  background: var(--sheet);
  padding: 16px;
  border: 1px dashed var(--cyan);
}

.cut-read label {
  display: block;
  font-size: 12px;
  color: var(--mute);
  margin: 8px 0 6px;
}

.cut-num {
  font-family: var(--mono);
  font-size: 42px;
  margin: 0;
  color: var(--risk);
}

#cut {
  width: 100%;
  accent-color: var(--cyan);
}

.win-note {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--mute);
  margin: 8px 0 0;
}

.tri-state {
  font-family: var(--mono);
  font-size: 13px;
  margin: 4px 0 0;
}

.tri-state.ok {
  color: var(--ok);
}

.tri-state.warn,
.tri-state.late {
  color: var(--risk);
}

.date-pin {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.date-pin li {
  background: #fff;
  padding: 12px 14px;
  border-left: 6px solid var(--cyan);
  font-size: 13px;
}

.date-pin li span {
  display: block;
  font-family: var(--mono);
  font-size: 14px;
}

.date-pin li small {
  display: block;
  margin-top: 6px;
  color: var(--mute);
}

.date-pin li.is-now {
  border-left-color: var(--risk);
}

.rent-roll table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.rent-roll th,
.rent-roll td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(26, 107, 138, 0.15);
}

.rent-roll th {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mute);
}

.rent-roll tr.is-late td {
  color: var(--risk);
}

.pond-table {
  overflow-x: auto;
  margin: 16px 0;
}

.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.inset,
.pair figure {
  margin: 20px 0 0;
}

.inset img,
.pair img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border: 1px solid rgba(26, 107, 138, 0.2);
}

figcaption {
  font-size: 13px;
  color: var(--mute);
  margin-top: 8px;
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.role-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.value-grid article,
.role-row article {
  background: var(--sheet);
  padding: 14px 16px 8px;
  border-left: 3px solid var(--cyan);
}

.rule-list li {
  margin-bottom: 8px;
}

.plate-foot {
  position: relative;
  z-index: 2;
  margin-top: 36px;
  padding: 28px 40px 48px;
  background: var(--cyan);
  color: #f4f1e8;
}

@media (max-width: 900px) {
  .floor-plate,
  .bay-row,
  .cam-share,
  .value-grid,
  .role-row,
  .pair {
    grid-template-columns: 1fr 1fr;
  }

  .cam-share,
  .bay-row,
  .role-row {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: block;
  }

  .plate-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--trace);
    padding: 12px 18px 18px;
    flex-direction: column;
  }

  .plate-nav.open {
    display: flex;
  }

  .hero,
  .sheet,
  .plate-foot {
    padding-left: 16px;
    padding-right: 16px;
  }
}