/* Field Station landing — page styles.
   Tokens ported from src/app/field-station.css (the app's design system).
   Materials: PAPER (cream sheet, graph grid, Lexend) + MACHINE (mono labels,
   dot-matrix numerals, tactile keys). Layout/type mirror landingpage.pdf. */

:root {
  --fs-chassis: #e9e5d9;
  --fs-panel: #f4f1e8;
  --fs-card: #fcfaf3;
  --fs-ink: #26241f;
  --fs-ink-soft: #57534a;
  --fs-ink-faint: #8a8576;
  --fs-edge: rgba(38, 36, 31, 0.09);
  --fs-hair: rgba(38, 36, 31, 0.22);
  --fs-olive: #76823b;
  --fs-mustard: #d9a23b;
  --fs-amber: #d98e2b;
  --fs-teal: #45808e;
  --fs-brick: #c75b39;
  --fs-red: #be3b2d;
  --fs-cream-ink: #f4f1e8;
  --fs-shadow-soft: 0 1px 2px rgba(38, 36, 31, 0.08), 0 4px 14px rgba(38, 36, 31, 0.07);
  --fs-shadow-card: 0 1px 3px rgba(38, 36, 31, 0.07), 0 10px 24px -6px rgba(38, 36, 31, 0.16);
  --f-display: 'Archivo', sans-serif;
  --f-body: 'Lexend', sans-serif;
  --f-mono: 'Martian Mono', monospace;
  --f-dotmx: 'DotGothic16', monospace;
  --col: 660px;
  --rail: 190px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  background: var(--fs-chassis);
  color: var(--fs-ink);
  font-family: var(--f-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  padding: clamp(10px, 2.5vw, 28px);
}

/* The whole page is one graph-paper sheet, built like the app's monitor panel. */
.sheet {
  max-width: 1160px;
  margin: 0 auto;
  background:
    linear-gradient(90deg, rgba(69, 128, 142, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(69, 128, 142, 0.08) 1px, transparent 1px),
    var(--fs-panel);
  background-size: 22px 22px, 22px 22px, auto;
  border: 1px solid var(--fs-hair);
  border-radius: 12px;
  box-shadow: var(--fs-shadow-card);
  overflow: hidden;
}

/* ---- shared band scaffolding ---- */
.band-inner {
  max-width: calc(var(--col) + var(--rail) + 48px);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 80px) clamp(20px, 5vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, var(--col)) var(--rail);
  gap: 48px;
  align-items: start;
}
.band--ink {
  background: var(--fs-ink);
  color: var(--fs-cream-ink);
  background-image:
    linear-gradient(90deg, rgba(244, 241, 232, 0.03) 1px, transparent 1px),
    linear-gradient(rgba(244, 241, 232, 0.03) 1px, transparent 1px);
  background-size: 22px 22px;
}
.band--ink + .band--ink .band-inner { padding-top: 0; }

/* ---- type roles ---- */
.kicker {
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fs-ink-soft);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}
.kicker::after {
  content: '';
  flex: 1;
  border-top: 1px dotted var(--fs-hair);
}
.band--ink .kicker { color: var(--fs-mustard); }
.band--ink .kicker::after { border-color: rgba(244, 241, 232, 0.25); }

.prose p { margin-bottom: 1.1em; max-width: 62ch; }
.prose p:last-child { margin-bottom: 0; }
.prose em { font-style: italic; }
.band--ink .prose { color: rgba(244, 241, 232, 0.87); }

/* ---- masthead ---- */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: calc(var(--col) + var(--rail) + 48px);
  margin: 0 auto;
  padding: 26px clamp(20px, 5vw, 48px) 0;
}
.wordmark {
  position: relative;
  font-family: var(--f-mono);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 4px 2px;
}
.wordmark::before {
  content: '';
  position: absolute;
  top: -7px;
  left: -14px;
  width: 74px;
  height: 18px;
  background: rgba(217, 162, 59, 0.4);
  transform: rotate(-2deg);
  pointer-events: none;
}
.masthead-chip {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fs-card);
  background: var(--fs-olive);
  border: 1px solid var(--fs-hair);
  border-radius: 4px;
  padding: 4px 10px;
}

/* ---- hero ---- */
.hero .band-inner { grid-template-columns: minmax(0, 1fr); padding-top: clamp(36px, 6vw, 64px); }
.hero h1 {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 21ch;
  margin-bottom: 28px;
}
.hero .subhead {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  line-height: 1.3;
  max-width: 34ch;
  color: var(--fs-ink-soft);
  margin-bottom: 24px;
}
.hero .prose { margin-bottom: 32px; }

/* ---- section headings ---- */
.section-title {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

/* ---- margin art rail ---- */
.margin-art {
  padding-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}
.margin-art svg { width: 100%; max-width: 150px; height: auto; }
.margin-art figcaption {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fs-ink-faint);
  text-align: center;
}
.band--ink .margin-art { color: rgba(244, 241, 232, 0.75); }
.band--ink .margin-art figcaption { color: rgba(244, 241, 232, 0.45); }
.art-teal { color: var(--fs-teal); }
.art-brick { color: var(--fs-brick); }
.art-olive { color: var(--fs-olive); }
.art-tilt-l { transform: rotate(-3deg); }
.art-tilt-r { transform: rotate(2.5deg); }

/* ---- numbered list band ---- */
.show-list { list-style: none; max-width: 62ch; }
.show-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
  padding: 34px 0;
  border-bottom: 1px solid rgba(244, 241, 232, 0.18);
}
.show-list li:first-child { border-top: 1px solid rgba(244, 241, 232, 0.18); }
.show-list .num {
  font-family: var(--f-dotmx);
  font-size: 2.8rem;
  line-height: 1;
  color: var(--fs-mustard);
}
.show-list .claim {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.6vw, 1.7rem);
  line-height: 1.3;
}
.show-list + .cta-block { margin-top: 34px; }

/* ---- CTA keys (tactile, pale-olive like the PDF buttons) ---- */
.cta-block { max-width: 62ch; }
.key {
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fs-ink);
  background: color-mix(in srgb, var(--fs-olive) 38%, var(--fs-card));
  border: 1px solid var(--fs-ink);
  border-radius: 6px;
  padding: 12px 20px;
  cursor: pointer;
  box-shadow: 0 2px 0 var(--fs-ink), var(--fs-shadow-soft);
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}
.key:hover { background: color-mix(in srgb, var(--fs-olive) 50%, var(--fs-card)); }
.key:active, .key[aria-expanded='true'] {
  transform: translateY(2px);
  box-shadow: 0 0 0 var(--fs-ink), var(--fs-shadow-soft);
}
.key:focus-visible, a:focus-visible, input:focus-visible, button:focus-visible {
  outline: 2px solid var(--fs-mustard);
  outline-offset: 2px;
}

/* support line under a CTA key */
.cta-note {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fs-ink-faint);
  margin-top: 10px;
}

/* ---- footer ---- */
.footer {
  background: var(--fs-ink);
  color: rgba(244, 241, 232, 0.65);
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 48px);
  border-top: 1px solid rgba(244, 241, 232, 0.15);
}
/* signup panel/confirmation opened from the footer key wraps to its own full-width row */
.footer > .panel-clip, .footer > .confirm-strip { flex: 1 1 100%; }

/* ---- responsive: single column, art rail hidden ---- */
@media (max-width: 899px) {
  .band-inner { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .margin-art { display: none; }
}