@import url("tokens/tokens.css");

* {
  box-sizing: border-box;
}

html {
  background:
    linear-gradient(var(--plathera-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--plathera-grid-line) 1px, transparent 1px),
    linear-gradient(var(--plathera-grid-line-major) 3px, transparent 3px),
    linear-gradient(90deg, var(--plathera-grid-line-major) 3px, transparent 3px),
    var(--plathera-bg);
  background-size: var(--plathera-grid-size) var(--plathera-grid-size), var(--plathera-grid-size) var(--plathera-grid-size), var(--plathera-grid-size-major) var(--plathera-grid-size-major), var(--plathera-grid-size-major) var(--plathera-grid-size-major), auto;
  color: var(--plathera-text);
  font-family: var(--plathera-font-body);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
}

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

p,
li {
  color: var(--plathera-text-muted);
  font-size: 14px;
  line-height: 1.7;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  color: var(--plathera-text);
  margin: 0;
}

h1 {
  font-family: var(--plathera-font-neutral);
  font-size: clamp(40px, 6.4vw, 88px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.88;
  max-width: 980px;
  text-transform: uppercase;
}

h2 {
  font-family: var(--plathera-font-neutral);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.98;
  margin-bottom: 22px;
  text-transform: uppercase;
}

h3 {
  font-family: var(--plathera-font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.doc-rail {
  align-items: flex-start;
  background: #131417;
  border-right: 1px solid var(--plathera-rule);
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
  left: 0;
  padding: 28px 22px;
  position: fixed;
  top: 0;
  width: 220px;
  z-index: 3;
}

.wordmark {
  border: 1px solid var(--plathera-rule-strong);
  color: var(--plathera-white);
  display: inline-flex;
  font-family: var(--plathera-font-display);
  font-size: 13px;
  letter-spacing: 0.03em;
  line-height: 1;
  padding: 10px 11px 8px;
}

.gear-short {
  font-family: var(--plathera-font-display);
  letter-spacing: var(--plathera-tracking-tight);
  text-transform: uppercase;
}

.doc-rail nav {
  display: grid;
  gap: 8px;
  width: 100%;
}

.doc-rail nav a {
  border-bottom: 1px solid var(--plathera-rule);
  color: var(--plathera-text-dim);
  font-family: var(--plathera-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 10px 0;
  text-transform: uppercase;
}

.doc-rail nav a:hover,
.doc-rail nav a[aria-current="page"] {
  color: var(--plathera-text);
}

.doc {
  margin-left: 220px;
  min-height: 100vh;
  overflow-x: hidden;
  padding: 36px clamp(22px, 5vw, 80px) 80px;
  width: calc(100% - 220px);
}

.doc-hero,
.sheet-hero {
  border-bottom: 1px solid var(--plathera-rule);
  margin-bottom: 38px;
  padding: clamp(36px, 7vw, 96px) 0 40px;
}

.lede {
  color: var(--plathera-text-muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.45;
  margin-top: 24px;
  max-width: 760px;
}

.eyebrow,
.stamp {
  color: var(--plathera-signal-amber);
  font-family: var(--plathera-font-display);
  font-size: 11px;
  letter-spacing: 0.16em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.stamp {
  border: 1px solid var(--plathera-rule-strong);
  color: var(--plathera-text);
  display: inline-flex;
  padding: 6px 9px;
}

.section-grid {
  display: grid;
  gap: var(--plathera-grid-gap);
  grid-template-columns: repeat(12, 1fr);
  margin: var(--plathera-space-6) 0;
}

.panel {
  background: color-mix(in srgb, var(--plathera-graphite) 78%, black);
  border: 1px solid var(--plathera-rule);
  box-shadow: var(--plathera-shadow-hard);
  padding: clamp(22px, 3.5vw, 42px);
  margin: var(--plathera-space-6) 0;
}

.panel.inverted {
  background: var(--plathera-white);
  color: var(--plathera-text-inverse);
}

.panel.inverted h2,
.panel.inverted p,
.panel.inverted .stamp {
  color: var(--plathera-text-inverse);
}

.panel.inverted .stamp {
  border-color: var(--plathera-text-inverse);
}

.panel.is-current {
  border-color: var(--plathera-signal-amber-rule);
  box-shadow: inset 0 0 0 1px var(--plathera-signal-amber-rule);
}

.span-4 {
  grid-column: span 4;
}

.span-5 {
  grid-column: span 5;
}

.span-6 {
  grid-column: span 6;
}

.span-7 {
  grid-column: span 7;
}

.span-8 {
  grid-column: span 8;
}

.span-12 {
  grid-column: span 12;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  color: var(--plathera-text-muted);
  font-family: var(--plathera-font-mono);
  font-size: 12px;
  width: 100%;
}

th,
td {
  border: 1px solid var(--plathera-rule);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--plathera-signal-amber);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.check-list,
.number-list,
.tag-list {
  margin: 0;
  padding-left: 18px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
}

.tag-list li {
  border: 1px solid var(--plathera-rule);
  color: var(--plathera-text);
  font-family: var(--plathera-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 8px 10px;
  text-transform: uppercase;
}

.stack-diagram {
  display: grid;
  gap: 8px;
}

.stack-diagram span {
  border: 1px solid var(--plathera-rule);
  color: var(--plathera-text);
  font-family: var(--plathera-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 14px 16px;
  text-transform: uppercase;
}

.trace-card,
.mini-register {
  border: 1px solid var(--plathera-rule);
  display: grid;
}

.trace-card div,
.mini-register div {
  border-bottom: 1px solid var(--plathera-rule);
  display: grid;
  gap: 8px;
  grid-template-columns: 120px 1fr;
  padding: 12px 14px;
}

.trace-card div:last-child,
.mini-register div:last-child {
  border-bottom: 0;
}

.trace-card strong,
.mini-register span:first-child {
  color: var(--plathera-text);
  font-family: var(--plathera-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.trace-card span,
.mini-register span:last-child {
  color: var(--plathera-text-muted);
  font-family: var(--plathera-font-mono);
  font-size: 12px;
}

.artifact {
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(135deg, rgba(239, 239, 239, 0.12), transparent 42%),
    repeating-linear-gradient(90deg, rgba(239, 239, 239, 0.04) 0 1px, transparent 1px 72px),
    var(--plathera-graphite);
  border: 1px solid var(--plathera-rule);
  display: grid;
  place-items: center;
  position: relative;
}

.artifact::after {
  border: 1px solid var(--plathera-steel);
  color: var(--plathera-steel);
  content: attr(data-label);
  font-family: var(--plathera-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  padding: 8px 10px;
  position: absolute;
  right: 18px;
  text-transform: uppercase;
  top: 18px;
}

.swatches {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(5, 1fr);
}

.swatch {
  border: 1px solid var(--plathera-rule);
  min-height: 140px;
  padding: 12px;
}

.swatch span {
  display: block;
  font-family: var(--plathera-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.shadow { background: #131417; }
.graphite { background: #222628; }
.steel { background: #8f969f; color: #222628; }
.aluminum { background: #d3d5d7; color: #222628; }
.white { background: #efefef; color: #222628; }
.page-dark { background: #131417; }
.page-light { background: #efefef; color: #222628; }
.signal-amber { background: #c0842f; color: #131417; }
.signal-amber-light { background: #9d651f; color: #efefef; }

.status-surface-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: repeat(3, 1fr);
}

.status-surface {
  background: var(--plathera-bg-raised);
  border: 1px solid var(--plathera-rule);
  padding: 20px;
}

.status-surface.is-current {
  border-color: var(--plathera-signal-amber-rule);
}

.status-surface.is-forthcoming {
  background: var(--plathera-bg-paper);
  color: var(--plathera-text-inverse);
}

.doc-links {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.doc-link {
  border: 1px solid var(--plathera-rule);
  display: grid;
  min-height: 150px;
  padding: 22px;
}

.doc-link strong {
  color: var(--plathera-text);
  font-family: var(--plathera-font-neutral);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  text-transform: uppercase;
}

.doc-link span {
  align-self: end;
  color: var(--plathera-text-dim);
  font-family: var(--plathera-font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (max-width: 880px) {
  .doc-rail {
    border-bottom: 1px solid var(--plathera-rule);
    border-right: 0;
    position: static;
    width: auto;
  }

  .doc {
    margin-left: 0;
    width: auto;
  }

  .section-grid {
    grid-template-columns: 1fr;
  }

  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8,
  .span-12 {
    grid-column: 1;
  }
}

@media print {
  .doc-rail {
    display: none;
  }

  .doc {
    margin: 0;
    padding: 0.5in;
  }

  .panel {
    box-shadow: none;
    break-inside: avoid;
  }
}