/* ==========================================================================
   OPTIMUS G3 — field-manual styling
   paper / ink / signal orange. Square corners, visible rules, mono captions.
   ========================================================================== */

:root {
  --paper: #efece4;
  --paper-2: #e6e2d7;
  --paper-3: #dcd7ca;
  --ink: #141311;
  --ink-2: #3a3833;
  --ink-3: #5d5a52;           /* 5.9:1 on paper */
  --rule: #141311;
  --rule-soft: rgba(20, 19, 17, .18);
  --signal: #d9480f;          /* warehouse-rack orange */
  --signal-ink: #b23a0a;      /* text-safe orange, 5.2:1 on paper */
  --night: #121210;
  --night-2: #1d1c19;
  --on-night: #efece4;
  --on-night-2: #b9b4a8;

  --f-display: "Archivo", "Arial Narrow", system-ui, sans-serif;
  --f-body: "Archivo", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --f-serif: "Newsreader", Georgia, serif;

  --gutter: clamp(16px, 4vw, 48px);
  --maxw: 1360px;
  --header-h: 64px;

  --ease-out: cubic-bezier(.2, .7, .2, 1);
  --t-fast: 160ms;
  --t-med: 280ms;

  --z-header: 40;
  --z-banner: 60;
  --z-skip: 100;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  font-variation-settings: "wdth" 100;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* faint paper grain + drafting grid */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: .22;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--signal); }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 800;
  line-height: .95;
  letter-spacing: -.02em;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0 0 1em; }

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip {
  position: fixed;
  top: 8px; left: 8px;
  z-index: var(--z-skip);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  font-family: var(--f-mono);
  font-size: 14px;
  transform: translateY(-160%);
  transition: transform var(--t-fast) var(--ease-out);
}
.skip:focus { transform: none; }

.wrap {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

main { position: relative; z-index: 1; }

/* --- type utilities ------------------------------------------------------ */

.mono {
  font-family: var(--f-mono);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: .02em;
}
.label {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.serif { font-family: var(--f-serif); font-style: italic; font-weight: 400; letter-spacing: 0; }
.signal { color: var(--signal-ink); }

/* --- buttons ------------------------------------------------------------- */

.btn {
  --bg: var(--ink);
  --fg: var(--paper);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 0 22px;
  border: 1.5px solid var(--ink);
  background: var(--bg);
  color: var(--fg);
  font-family: var(--f-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  touch-action: manipulation;
  transition: background var(--t-fast), color var(--t-fast), box-shadow var(--t-fast) var(--ease-out), transform var(--t-fast) var(--ease-out);
}
.btn:hover { box-shadow: 5px 5px 0 var(--signal); transform: translate(-2px, -2px); }
.btn:active { box-shadow: 0 0 0 var(--signal); transform: none; }
.btn--ghost { --bg: transparent; --fg: var(--ink); }
.btn--signal { --bg: var(--signal); --fg: #fff; border-color: var(--signal); }
.btn--signal:hover { box-shadow: 5px 5px 0 var(--ink); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn[disabled] { opacity: .5; cursor: progress; box-shadow: none; transform: none; }

/* --- header -------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1.5px solid var(--rule);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: .02em;
  font-variation-settings: "wdth" 112;
}
.brand__mark { width: 28px; height: 28px; }
.brand__gen {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 11px;
  letter-spacing: .06em;
  padding: 2px 6px;
  border: 1.5px solid var(--ink);
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 12px;
  position: relative;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 6px;
  height: 1.5px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med) var(--ease-out);
}
.nav a:hover::after, .nav a[aria-current="true"]::after { transform: scaleX(1); }
.nav .btn { margin-left: 12px; min-height: 40px; padding: 0 16px; }
.nav .btn::after { display: none; }

.menu-toggle {
  display: none;
  width: 48px; height: 48px;
  margin-right: -12px;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
}
.menu-toggle span {
  display: block;
  width: 22px; height: 1.5px;
  margin: 5px auto;
  background: currentColor;
  transition: transform var(--t-med) var(--ease-out), opacity var(--t-fast);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 24px;
    background: var(--paper);
    border-bottom: 1.5px solid var(--rule);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-med) var(--ease-out), transform var(--t-med) var(--ease-out), visibility 0s linear var(--t-med);
  }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; transition-delay: 0s; }
  .nav a { padding: 16px 0; font-size: 15px; border-bottom: 1px solid var(--rule-soft); }
  .nav a::after { display: none; }
  .nav .btn { margin: 16px 0 0; justify-content: center; min-height: 52px; }
}

/* --- section scaffolding -------------------------------------------------- */

.section { padding: clamp(72px, 11vw, 160px) 0; position: relative; }
.section--rule { border-top: 1.5px solid var(--rule); }

.sec-head {
  display: grid;
  grid-template-columns: minmax(120px, 2fr) 10fr;
  gap: 24px;
  align-items: start;
  margin-bottom: clamp(40px, 6vw, 88px);
}
.sec-head__num {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  padding-top: 10px;
  border-top: 1.5px solid var(--ink);
}
.sec-head__num b { color: var(--signal-ink); font-weight: 500; }
.sec-head h2 {
  font-size: clamp(44px, 7.4vw, 112px);
  font-variation-settings: "wdth" 72;
  text-transform: uppercase;
}
.sec-head h2 .serif { text-transform: none; font-size: .92em; letter-spacing: -.01em; }
.sec-head__lede {
  grid-column: 2;
  max-width: 60ch;
  margin-top: 24px;
  font-size: 19px;
  color: var(--ink-2);
}

@media (max-width: 720px) {
  .sec-head { grid-template-columns: 1fr; gap: 16px; }
  .sec-head__num { justify-self: start; padding-right: 32px; }
  .sec-head__lede { grid-column: 1; margin-top: 8px; font-size: 17px; }
}

/* --- hero --------------------------------------------------------------- */

.hero {
  position: relative;
  padding: clamp(28px, 4vw, 48px) 0 0;
  overflow: hidden;
}
.hero__meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--ink-3);
}
.hero__meta .dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--signal);
  margin-right: 8px;
  vertical-align: 1px;
  animation: blink 2.4s steps(2, jump-none) infinite;
}
@keyframes blink { 50% { opacity: .2; } }

.hero__grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  padding-top: clamp(32px, 5vw, 72px);
}

.hero__title {
  font-size: clamp(50px, 7.2vw, 112px);
  font-variation-settings: "wdth" 68;
  text-transform: uppercase;
  line-height: .86;
  letter-spacing: -.025em;
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .04em; }
.hero__title .line > span { display: inline-block; }
.hero__title .serif {
  text-transform: none;
  font-size: .9em;
  letter-spacing: -.02em;
  color: var(--signal-ink);
}

.hero__copy { max-width: 44ch; margin-top: 32px; font-size: 19px; color: var(--ink-2); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero__note { margin-top: 18px; color: var(--ink-3); }

.hero__fig { position: relative; }

.plate {
  position: relative;
  border: 1.5px solid var(--ink);
  background: var(--paper);
}
.plate__bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1.5px solid var(--ink);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.plate__bar span:last-child { color: var(--ink-3); }

.blueprint { width: 100%; height: auto; color: var(--ink); }
.blueprint .ln { fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linejoin: round; stroke-linecap: round; }
.blueprint .ln-thin { fill: none; stroke: currentColor; stroke-width: .7; }
.blueprint .ln-dash { fill: none; stroke: currentColor; stroke-width: .7; stroke-dasharray: 10 3 2 3; opacity: .7; }
.blueprint .fill-paper { fill: var(--paper); }
.blueprint .fill-ink { fill: currentColor; }
.blueprint .fill-signal { fill: var(--signal); }
.blueprint .st-signal { stroke: var(--signal); }
.blueprint .hatch { fill: url(#hatch); }
.blueprint text {
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  fill: currentColor;
  text-transform: uppercase;
}
.blueprint .t-muted { fill: var(--ink-3); }

@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__fig { order: 2; }
}
@media (max-width: 560px) {
  #hero-blueprint .callout, #hero-blueprint .dim { display: none; }
}

/* spec strip under the hero */
.strip {
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.strip > div { padding: 20px 20px 18px; border-left: 1px solid var(--rule-soft); }
.strip > div:first-child { border-left: 0; padding-left: 0; }
.strip dt { color: var(--ink-3); }
.strip dd {
  margin: 6px 0 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(30px, 3.6vw, 52px);
  font-variation-settings: "wdth" 75;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.strip dd small { font-size: .42em; font-weight: 600; margin-left: 4px; font-variation-settings: "wdth" 100; }
@media (max-width: 720px) {
  .strip { grid-template-columns: 1fr 1fr; }
  .strip > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .strip > div:nth-child(n+3) { border-top: 1px solid var(--rule-soft); }
}

/* --- ticker ------------------------------------------------------------- */

.ticker {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  white-space: nowrap;
  border-block: 1.5px solid var(--ink);
  position: relative;
  z-index: 1;
}
.ticker__track {
  display: inline-flex;
  gap: 48px;
  padding: 14px 0;
  animation: ticker 48s linear infinite;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.ticker__track span::before { content: "✕"; color: var(--signal); margin-right: 48px; font-size: 11px; }
.ticker:hover .ticker__track, .ticker.is-paused .ticker__track { animation-play-state: paused; }
.ticker__pause {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 48px;
  border: 0;
  border-left: 1px solid rgba(239, 236, 228, .25);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}
.ticker__pause svg { width: 14px; height: 14px; margin: auto; }
@keyframes ticker { to { transform: translateX(-50%); } }

/* --- anatomy ------------------------------------------------------------- */

.anatomy {
  display: grid;
  grid-template-columns: 6fr 5fr;
  gap: clamp(24px, 5vw, 80px);
  align-items: start;
}
.anatomy__fig { position: relative; }
.anatomy__fig .plate { background: var(--paper-2); }

.hotspot {
  position: absolute;
  width: 44px; height: 44px;
  transform: translate(-50%, -50%);
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.hotspot span {
  width: 28px; height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: var(--paper);
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 500;
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-med) var(--ease-out);
}
.hotspot:hover span { transform: scale(1.12); }
.hotspot[aria-pressed="true"] span { background: var(--signal); border-color: var(--signal); color: #fff; }
.hotspot[aria-pressed="true"]::before {
  content: "";
  position: absolute;
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--signal);
  animation: ping 1.8s var(--ease-out) infinite;
}
@keyframes ping { from { transform: scale(1); opacity: .9; } to { transform: scale(2.1); opacity: 0; } }

.parts { border-top: 1.5px solid var(--ink); }
.parts__tabs { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--rule-soft); }
.parts__tabs button {
  flex: 1 1 auto;
  min-height: 48px;
  padding: 0 12px;
  border: 0;
  border-right: 1px solid var(--rule-soft);
  background: transparent;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast);
}
.parts__tabs button:last-child { border-right: 0; }
.parts__tabs button:hover { color: var(--ink); background: var(--paper-2); }
.parts__tabs button[aria-selected="true"] { color: var(--ink); box-shadow: inset 0 -3px 0 var(--signal); }

.part { padding: 32px 0 0; }
.part[hidden] { display: none; }
.part h3 {
  font-size: clamp(34px, 4vw, 56px);
  font-variation-settings: "wdth" 72;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.part p { color: var(--ink-2); max-width: 52ch; }
.part dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 28px 0 0;
  border-top: 1px solid var(--rule-soft);
}
.part dl div { padding: 14px 0; border-bottom: 1px solid var(--rule-soft); }
.part dl div:nth-child(odd) { padding-right: 16px; }
.part dt { color: var(--ink-3); }
.part dd { margin: 4px 0 0; font-weight: 700; font-size: 20px; font-variant-numeric: tabular-nums; }
.part.is-entering { animation: partIn var(--t-med) var(--ease-out); }
@keyframes partIn { from { opacity: 0; transform: translateY(8px); } }

@media (max-width: 960px) {
  .anatomy { grid-template-columns: 1fr; }
  .anatomy__fig { max-width: 520px; margin: 0 auto; width: 100%; }
}

/* --- field use (photos) --------------------------------------------------- */

.field { display: grid; gap: clamp(56px, 8vw, 120px); }
.case {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  align-items: end;
}
.case__img { grid-column: 1 / span 7; margin: 0; }
.case__body { grid-column: 9 / span 4; padding-bottom: 8px; }
.case:nth-child(2) .case__img { grid-column: 6 / span 7; grid-row: 1; }
.case:nth-child(2) .case__body { grid-column: 1 / span 4; grid-row: 1; }
.case:nth-child(3) .case__img { grid-column: 2 / span 6; }

.photo {
  position: relative;
  overflow: hidden;
  border: 1.5px solid var(--ink);
  background: var(--paper-3);
}
.photo img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(1.02);
  transform: scale(1.04);
  transition: filter 600ms var(--ease-out), transform 900ms var(--ease-out);
}
.photo::after {
  /* orange registration corner */
  content: "";
  position: absolute;
  right: 0; bottom: 0;
  width: 28%; height: 6px;
  background: var(--signal);
}
.case:hover .photo img { filter: grayscale(.15) contrast(1.02); transform: scale(1); }
.photo figcaption, .fig-cap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0 0;
  color: var(--ink-3);
}

.case__tag { display: inline-block; margin-bottom: 18px; padding: 4px 8px; border: 1.5px solid var(--ink); }
.case h3 {
  font-size: clamp(34px, 4.4vw, 64px);
  font-variation-settings: "wdth" 70;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.case p { color: var(--ink-2); }
.case ul { list-style: none; padding: 0; margin: 20px 0 0; border-top: 1px solid var(--rule-soft); }
.case li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule-soft);
  font-size: 15px;
}
.case li::before { content: "→"; font-family: var(--f-mono); color: var(--signal-ink); }

@media (max-width: 900px) {
  .case, .case:nth-child(2), .case:nth-child(3) { grid-template-columns: 1fr; }
  .case .case__img, .case .case__body,
  .case:nth-child(2) .case__img, .case:nth-child(2) .case__body,
  .case:nth-child(3) .case__img { grid-column: 1; grid-row: auto; }
}

/* --- learning (dark) ------------------------------------------------------ */

.dark {
  background: var(--night);
  color: var(--on-night);
  --ink: var(--on-night);
  --ink-2: #d8d3c7;
  --ink-3: var(--on-night-2);
  --rule: var(--on-night);
  --rule-soft: rgba(239, 236, 228, .18);
  --signal-ink: #ff7a3d;
  --paper: var(--night);
  --paper-2: var(--night-2);
}
.dark .btn { --bg: var(--on-night); --fg: var(--night); border-color: var(--on-night); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1.5px solid var(--ink);
}
.step {
  padding: 28px 28px 36px 0;
  border-right: 1px solid var(--rule-soft);
  position: relative;
}
.step + .step { padding-left: 28px; }
.step:last-child { border-right: 0; }
.step__n {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(80px, 10vw, 150px);
  line-height: .8;
  font-variation-settings: "wdth" 62;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--ink);
  margin-bottom: 28px;
}
.step h3 { font-size: 30px; font-variation-settings: "wdth" 80; text-transform: uppercase; margin-bottom: 14px; }
.step p { color: var(--ink-2); font-size: 16px; }
.step .mono { color: var(--signal-ink); }

.learn-media {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
  margin-top: clamp(48px, 7vw, 96px);
  align-items: start;
}
.learn-media .photo { border-color: var(--rule-soft); }
.learn-media .photo:nth-child(2) { margin-top: clamp(40px, 8vw, 120px); }
.learn-quote {
  grid-column: 1 / -1;
  max-width: 28ch;
  margin: clamp(40px, 6vw, 80px) 0 0 auto;
  font-family: var(--f-serif);
  font-style: italic;
  font-size: clamp(28px, 3.4vw, 46px);
  line-height: 1.15;
}
.learn-quote footer { margin-top: 16px; font-style: normal; color: var(--ink-3); }

@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
  .step, .step + .step { padding: 28px 0 32px; border-right: 0; border-bottom: 1px solid var(--rule-soft); }
  .learn-media { grid-template-columns: 1fr; }
  .learn-media .photo:nth-child(2) { margin-top: 0; }
}

/* --- spec sheet ----------------------------------------------------------- */

.spec-tools {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.seg {
  display: inline-flex;
  border: 1.5px solid var(--ink);
}
.seg button {
  min-height: 44px;
  min-width: 96px;
  padding: 0 14px;
  border: 0;
  background: transparent;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  color: var(--ink);
  transition: background var(--t-fast), color var(--t-fast);
}
.seg button + button { border-left: 1.5px solid var(--ink); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

.spec {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: clamp(24px, 5vw, 80px);
  border-top: 1.5px solid var(--ink);
}
.spec-group { padding-top: 8px; }
.spec-group h3 {
  font-family: var(--f-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 18px 0 10px;
  color: var(--signal-ink);
}
.spec table { width: 100%; border-collapse: collapse; }
.spec th, .spec td {
  text-align: left;
  padding: 13px 0;
  border-bottom: 1px solid var(--rule-soft);
  vertical-align: baseline;
}
.spec th { font-weight: 400; color: var(--ink-3); width: 46%; font-size: 15px; }
.spec td { font-weight: 700; font-size: 17px; font-variant-numeric: tabular-nums; }
.spec td .u { transition: opacity var(--t-fast); }
.spec-note { margin-top: 24px; color: var(--ink-3); max-width: 80ch; }
@media (max-width: 820px) { .spec { grid-template-columns: 1fr; } }

/* --- configurations ------------------------------------------------------- */

.configs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1.5px solid var(--ink);
}
.config {
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-right: 1.5px solid var(--ink);
  position: relative;
}
.config:last-child { border-right: 0; }
.config--main { background: var(--ink); color: var(--paper); }
.config.config--main .config__for, .config.config--main li { color: #cfcabe; }
.config.config--main li { border-color: rgba(239, 236, 228, .2); }
.config--main .btn { --bg: var(--signal); --fg: #fff; border-color: var(--signal); }
.config--main .btn:hover { box-shadow: 5px 5px 0 var(--paper); }
.config__flag {
  position: absolute;
  top: -1.5px; right: 28px;
  padding: 4px 10px;
  background: var(--signal);
  color: #fff;
}
.config h3 {
  font-size: 40px;
  font-variation-settings: "wdth" 72;
  text-transform: uppercase;
  margin: 18px 0 8px;
}
.config__for { color: var(--ink-3); min-height: 3.2em; margin-bottom: 20px; }
.config__price {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 48px;
  line-height: 1;
  font-variation-settings: "wdth" 80;
  font-variant-numeric: tabular-nums;
}
.config__price small { display: block; margin-top: 10px; font-family: var(--f-mono); font-weight: 400; font-size: 12px; letter-spacing: .04em; opacity: .75; }
.config ul { list-style: none; padding: 0; margin: 28px 0 32px; flex: 1; }
.config li { padding: 10px 0; border-top: 1px solid var(--rule-soft); font-size: 15px; color: var(--ink-2); }
.config .btn { justify-content: space-between; }
@media (max-width: 960px) {
  .configs { grid-template-columns: 1fr; }
  .config { border-right: 0; border-bottom: 1.5px solid var(--ink); }
  .config:last-child { border-bottom: 0; }
  .config__for { min-height: 0; }
}

/* --- faq ---------------------------------------------------------------- */

.faq { border-top: 1.5px solid var(--ink); max-width: 980px; margin-left: auto; }
.faq details { border-bottom: 1px solid var(--rule-soft); }
.faq summary {
  display: grid;
  grid-template-columns: 56px 1fr 32px;
  align-items: center;
  gap: 12px;
  min-height: 72px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .mono { color: var(--ink-3); }
.faq summary i {
  width: 18px; height: 18px;
  position: relative;
  justify-self: end;
}
.faq summary i::before, .faq summary i::after {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 18px; height: 1.5px;
  background: currentColor;
  transition: transform var(--t-med) var(--ease-out);
}
.faq summary i::after { transform: rotate(90deg); }
.faq details[open] summary i::after { transform: rotate(0); }
.faq summary:hover { color: var(--signal-ink); }
.faq .answer { padding: 0 44px 24px 68px; color: var(--ink-2); max-width: 72ch; }
@media (max-width: 600px) {
  .faq summary { grid-template-columns: 36px 1fr 24px; }
  .faq .answer { padding: 0 0 24px 48px; }
}

/* --- reserve form ------------------------------------------------------- */

.reserve {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.reserve__side h2 {
  font-size: clamp(52px, 8vw, 128px);
  font-variation-settings: "wdth" 66;
  text-transform: uppercase;
  line-height: .86;
}
.reserve__side h2 .serif { text-transform: none; color: var(--signal-ink); font-size: .92em; }
.reserve__side p { margin-top: 28px; max-width: 40ch; color: var(--ink-2); }
.reserve__facts { list-style: none; padding: 0; margin: 32px 0 0; border-top: 1.5px solid var(--ink); }
.reserve__facts li { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--rule-soft); }
.reserve__facts li span:last-child { font-weight: 700; text-align: right; }

.form {
  border: 1.5px solid var(--ink);
  background: var(--paper);
  padding: clamp(20px, 3.5vw, 40px);
  position: relative;
}
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 20px; }
.field-row { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field-row--full { grid-column: 1 / -1; }
.field-row label, .field-row legend { font-family: var(--f-mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.field-row label .req, .field-row legend .req { color: var(--signal-ink); }
.input, .select, .textarea {
  width: 100%;
  min-height: 52px;
  padding: 12px 14px;
  border: 1.5px solid var(--ink);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 17px;
  transition: box-shadow var(--t-fast), border-color var(--t-fast);
  -webkit-appearance: none;
  appearance: none;
}
.select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'%3E%3Cpath d='M2 5l5 5 5-5' fill='none' stroke='%23141311' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.textarea { min-height: 112px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { outline: none; box-shadow: 4px 4px 0 var(--signal); }
.input[aria-invalid="true"], .select[aria-invalid="true"] { border-color: #b3261e; }
.help { font-size: 13px; color: var(--ink-3); }
.err { font-size: 14px; color: #a3211a; font-weight: 600; min-height: 0; }
.err:empty { display: none; }

.choice { border: 0; padding: 0; margin: 0; }
.choice legend { margin-bottom: 8px; }
.choice__opts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1.5px solid var(--ink); }
.choice__opts label {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  min-height: 64px;
  cursor: pointer;
  border-right: 1.5px solid var(--ink);
  font-family: var(--f-body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 16px;
  font-weight: 700;
  transition: background var(--t-fast), color var(--t-fast);
}
.choice__opts label:last-child { border-right: 0; }
.choice__opts label small { font-family: var(--f-mono); font-weight: 400; font-size: 12px; color: var(--ink-3); }
.choice__opts input { position: absolute; opacity: 0; pointer-events: none; }
.choice__opts label:has(input:checked) { background: var(--ink); color: var(--paper); }
.choice__opts label:has(input:checked) small { color: #cfcabe; }
.choice__opts label:has(input:focus-visible) { outline: 2px solid var(--signal); outline-offset: -4px; }
@media (max-width: 560px) {
  .choice__opts { grid-template-columns: 1fr; }
  .choice__opts label { border-right: 0; border-bottom: 1.5px solid var(--ink); }
  .choice__opts label:last-child { border-bottom: 0; }
}

.check { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink-2); cursor: pointer; }
.check input {
  flex: none;
  width: 22px; height: 22px;
  margin: 1px 0 0;
  border: 1.5px solid var(--ink);
  background: var(--paper);
  -webkit-appearance: none;
  appearance: none;
  display: grid;
  place-items: center;
  cursor: pointer;
}
.check input::after { content: ""; width: 10px; height: 10px; background: var(--signal); transform: scale(0); transition: transform var(--t-fast) var(--ease-out); }
.check input:checked::after { transform: scale(1); }
.check input[aria-invalid="true"] { border-color: #b3261e; }

.form__foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 28px; }
.form__foot .mono { color: var(--ink-3); max-width: 34ch; }

.form-summary {
  border: 1.5px solid #a3211a;
  padding: 14px 16px;
  margin-bottom: 24px;
  color: #a3211a;
}
.form-summary ul { margin: 6px 0 0; padding-left: 18px; }
.form-summary a { color: inherit; }

.form-done { text-align: left; padding: 24px 0; }
.form-done svg { width: 56px; height: 56px; color: var(--signal); margin-bottom: 20px; }
.form-done h3 { font-size: 44px; font-variation-settings: "wdth" 72; text-transform: uppercase; margin-bottom: 14px; }
.form-done p { color: var(--ink-2); max-width: 46ch; }

.spinner { width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 960px) { .reserve { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .form__grid { grid-template-columns: 1fr; } }

/* --- footer ------------------------------------------------------------- */

.site-footer {
  position: relative;
  z-index: 1;
  background: var(--night);
  color: var(--on-night);
  padding: clamp(56px, 8vw, 104px) 0 32px;
  overflow: hidden;
}
.site-footer a { text-decoration: none; }
.site-footer a:hover { text-decoration: underline; text-decoration-color: var(--signal); }
.foot-grid {
  display: grid;
  grid-template-columns: 5fr 2fr 2fr 3fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(239, 236, 228, .2);
}
.foot-grid h2 { font-family: var(--f-mono); font-weight: 500; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--on-night-2); margin-bottom: 16px; line-height: 1.4; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li a { display: inline-block; padding: 6px 0; }
.foot-lede { max-width: 36ch; color: var(--on-night-2); margin-top: 18px; }
.foot-word {
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(64px, 17vw, 260px);
  line-height: .8;
  letter-spacing: -.03em;
  font-variation-settings: "wdth" 62;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1.2px rgba(239, 236, 228, .35);
  margin: 40px 0 24px;
  white-space: nowrap;
  user-select: none;
}
.foot-word span { color: var(--signal); -webkit-text-stroke: 0; }
.foot-base { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--on-night-2); }
.foot-base button { background: none; border: 0; padding: 0; color: inherit; font: inherit; text-decoration: underline; text-underline-offset: .2em; cursor: pointer; min-height: 24px; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-grid > div:first-child { grid-column: 1 / -1; } }

/* --- cookie banner ------------------------------------------------------ */

.cookie {
  position: fixed;
  left: 16px;
  bottom: 16px;
  z-index: var(--z-banner);
  width: min(440px, calc(100% - 32px));
  background: var(--paper);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  padding: 20px;
  transform: translateY(24px);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--t-med) var(--ease-out), opacity var(--t-med), visibility 0s linear var(--t-med);
}
.cookie.is-visible { transform: none; opacity: 1; visibility: visible; transition-delay: 0s; }
.cookie h2 { font-size: 22px; font-variation-settings: "wdth" 80; text-transform: uppercase; margin-bottom: 8px; }
.cookie p { font-size: 15px; color: var(--ink-2); margin-bottom: 16px; }
.cookie__actions { display: flex; flex-wrap: wrap; gap: 8px; }
.cookie .btn { min-height: 44px; padding: 0 16px; font-size: 13px; }

/* --- reveal ------------------------------------------------------------- */

.js .reveal { opacity: 0; transform: translateY(24px); }
.js .reveal.is-in { opacity: 1; transform: none; transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .ticker__track { animation: none; }
  .photo img { transform: none; }
}

/* --- legal pages ------------------------------------------------------- */

.legal-hero { padding: clamp(48px, 8vw, 112px) 0 clamp(32px, 5vw, 56px); border-bottom: 1.5px solid var(--ink); }
.legal-hero .label { color: var(--signal-ink); margin-bottom: 20px; }
.legal-hero h1 {
  font-size: clamp(48px, 8vw, 120px);
  font-variation-settings: "wdth" 68;
  text-transform: uppercase;
  line-height: .88;
}
.legal-hero__meta { display: flex; flex-wrap: wrap; gap: 8px 32px; margin-top: 28px; color: var(--ink-3); }

.legal {
  display: grid;
  grid-template-columns: 3fr 8fr;
  gap: clamp(32px, 6vw, 96px);
  padding: clamp(40px, 6vw, 80px) 0 clamp(80px, 10vw, 140px);
  align-items: start;
}
.legal-toc { position: sticky; top: calc(var(--header-h) + 24px); border-top: 1.5px solid var(--ink); padding-top: 14px; }
.legal-toc p { color: var(--ink-3); margin-bottom: 10px; }
.legal-toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; }
.legal-toc li { counter-increment: toc; }
.legal-toc a {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  font-size: 15px;
  text-decoration: none;
  color: var(--ink-2);
}
.legal-toc a::before { content: counter(toc, decimal-leading-zero); font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); padding-top: 3px; }
.legal-toc a:hover { color: var(--ink); text-decoration: underline; text-decoration-color: var(--signal); }

.prose { max-width: 72ch; font-size: 17px; }
.prose > section { padding-bottom: 12px; }
.prose h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-variation-settings: "wdth" 80;
  text-transform: uppercase;
  margin: 48px 0 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  gap: 16px;
  align-items: baseline;
}
.prose > section:first-child h2 { margin-top: 0; }
.prose h2 .mono { color: var(--signal-ink); font-weight: 500; letter-spacing: .04em; }
.prose h3 { font-size: 20px; font-weight: 700; letter-spacing: 0; line-height: 1.3; margin: 28px 0 10px; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 22px; margin: 0 0 1em; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--signal-ink); }
.prose strong { color: var(--ink); }
.prose .note { border-left: 3px solid var(--signal); padding: 12px 18px; background: var(--paper-2); color: var(--ink-2); margin: 24px 0; }
.table-wrap { overflow-x: auto; margin: 16px 0 24px; border-top: 1.5px solid var(--ink); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 520px; }
.prose th, .prose td { text-align: left; padding: 12px 12px 12px 0; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
.prose th { font-family: var(--f-mono); font-weight: 500; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }

@media (max-width: 860px) {
  .legal { grid-template-columns: 1fr; }
  .legal-toc { position: static; }
}

/* <use> clones live in a shadow tree, so descendant selectors can't reach them —
   paint is inherited from the <use> element instead. */
.blueprint use { fill: var(--paper); stroke: currentColor; stroke-linejoin: round; stroke-linecap: round; }
.anatomy .blueprint use { fill: var(--paper); }
.hero .blueprint { max-height: calc(100vh - 200px); min-height: 460px; }
@media (max-width: 560px) {
  .parts__tabs button { flex: 1 1 30%; border-bottom: 1px solid var(--rule-soft); }
}
.legal-hero h1 .serif { text-transform: none; color: var(--signal-ink); font-size: .92em; letter-spacing: -.01em; }
@media (max-width: 560px) { .legal-hero h1 { font-size: 44px; overflow-wrap: anywhere; } }
.legal > * { min-width: 0; }