/* ==========================================================================
   OVERLAND — styles.css
   Art direction: matte obsidian surfaces, hairline technical rules,
   condensed display type against monospaced annotation, one signal colour.
   Sections: 1 Tokens · 2 Fonts · 3 Base · 4 Type · 5 Layout · 6 Controls
             7 Header · 8 Hero · 9 Manifesto · 10 Fleet · 11 Performance
             12 Calculator · 13 Experience · 14 Final · 15 Footer
             16 Booking · 17 Motion · 18 Responsive
   ========================================================================== */

/* 1 ---------- Tokens ---------- */
:root {
  --c-obsidian: #0A0A0A;
  --c-graphite: #141414;
  --c-surface: #1C1C1C;
  --c-surface-2: #232323;
  --c-titanium: #858585;
  --c-muted: #A0A0A0;
  --c-text: #F2F0EB;
  --c-accent: #FF5722;
  --c-accent-soft: rgba(255, 87, 34, 0.12);
  --c-accent-line: rgba(255, 87, 34, 0.55);
  --c-border: rgba(255, 255, 255, 0.12);
  --c-border-strong: rgba(255, 255, 255, 0.26);
  --c-error: #FF8F7A;

  --font-display: 'Oswald', 'Bahnschrift Condensed', 'Arial Narrow', Impact, sans-serif;
  --font-ui: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;

  --fs-tech: 0.6875rem;
  --fs-small: 0.8125rem;
  --fs-body: 1rem;
  --fs-lede: clamp(1.0625rem, 0.35vw + 0.98rem, 1.3125rem);
  --fs-h3: clamp(1.25rem, 0.9vw + 0.95rem, 1.75rem);
  --fs-display-lg: clamp(2.75rem, 6.4vw, 7rem);
  --fs-display-xl: clamp(3.25rem, 10vw, 11.5rem);

  --gutter: clamp(16px, 4vw, 56px);
  --wrap: min(100% - (var(--gutter) * 2), 1520px);
  --section-space: clamp(88px, 11vw, 176px);
  --header-h: 68px;
  --radius: 2px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-micro: 180ms;
  --t-control: 260ms;
  --t-card: 450ms;
  --t-reveal: 680ms;
  --t-modal: 300ms;

  color-scheme: dark;
}

/* 2 ---------- Fonts (self-hosted latin subsets, variable weight) ---------- */
@font-face {
  font-family: 'Oswald';
  src: url('../assets/fonts/Oswald-latin.woff2') format('woff2');
  font-weight: 500 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('../assets/fonts/SpaceGrotesk-latin.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../assets/fonts/JetBrainsMono-latin.woff2') format('woff2');
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* 3 ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 12px);
  scrollbar-gutter: stable;
  background: var(--c-obsidian);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
html.is-locked { overflow: hidden; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--c-obsidian);
  color: var(--c-text);
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  line-height: 1.6;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* Powder-coat grain: one fixed layer, very low opacity. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 300;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
[hidden] { display: none !important; }
::selection { background: var(--c-accent); color: var(--c-obsidian); }

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

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; z-index: 400; left: 12px; top: -80px;
  padding: 12px 16px;
  background: var(--c-text); color: var(--c-obsidian);
  font-family: var(--font-mono); font-size: var(--fs-small);
}
.skip-link:focus-visible { top: 12px; }

/* Icons are SVG files used as masks so they inherit currentColor. */
.icon {
  display: inline-block;
  flex: none;
  width: 1em; height: 1em;
  background-color: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat;
  mask: var(--icon) center / contain no-repeat;
}
.icon-arrow { --icon: url('../icons/arrow.svg'); }
.icon-close { --icon: url('../icons/close.svg'); }
.icon-engine { --icon: url('../icons/engine.svg'); }
.icon-horsepower { --icon: url('../icons/horsepower.svg'); }
.icon-torque { --icon: url('../icons/torque.svg'); }
.icon-transmission { --icon: url('../icons/transmission.svg'); }
.icon-speed { --icon: url('../icons/speed.svg'); }
.icon-suspension { --icon: url('../icons/suspension.svg'); }

/* 4 ---------- Type ---------- */
.tech {
  font-family: var(--font-mono);
  font-size: var(--fs-tech);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-titanium);
}
.eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-tech);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 8px; height: 8px;
  background: var(--c-accent);
}
.display-lg, .display-xl, .hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.display-lg { font-size: var(--fs-display-lg); line-height: 0.9; }
.display-xl { font-size: var(--fs-display-xl); line-height: 0.86; }
.text-dim { color: var(--c-titanium); }
.text-accent { color: var(--c-accent); }
.dot { color: var(--c-accent); }
.lede { font-size: var(--fs-lede); line-height: 1.55; color: var(--c-muted); max-width: 44ch; }
.fine-print { font-size: 0.75rem; line-height: 1.5; color: var(--c-titanium); max-width: 70ch; }
.mono-note { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.06em; color: var(--c-titanium); }

/* 5 ---------- Layout ---------- */
.wrap { width: var(--wrap); margin-inline: auto; }
.section { position: relative; padding-block: var(--section-space); }
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
  align-items: end;
  gap: 24px 48px;
  margin-bottom: clamp(40px, 5vw, 72px);
}
.section-head .display-lg { margin-top: 22px; }
.section-head .lede { justify-self: end; }
.index-row {
  display: flex; justify-content: space-between; gap: 16px;
  padding-bottom: 16px;
  margin-bottom: clamp(40px, 6vw, 88px);
  border-bottom: 1px solid var(--c-border);
}
.frame { position: relative; overflow: hidden; background: var(--c-surface); }
.frame img { width: 100%; height: 100%; object-fit: cover; }
.frame figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; justify-content: space-between; gap: 12px;
  padding: 12px 14px;
  background: linear-gradient(0deg, rgba(10, 10, 10, 0.78), rgba(10, 10, 10, 0));
  color: var(--c-text);
}

/* 6 ---------- Controls ---------- */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background-color var(--t-control) var(--ease), border-color var(--t-control) var(--ease), color var(--t-control) var(--ease), transform var(--t-micro) var(--ease);
}
.btn .icon { font-size: 15px; transition: transform var(--t-control) var(--ease); }
.btn:hover .icon, .btn:focus-visible .icon { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--c-accent); color: var(--c-obsidian); }
.btn--primary:hover { background: #FF6D3D; }
.btn--outline { border-color: var(--c-accent); color: var(--c-text); }
.btn--outline:hover { background: var(--c-accent-soft); }
.btn--ghost { border-color: var(--c-border-strong); color: var(--c-text); }
.btn--ghost:hover { border-color: var(--c-text); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 0.6875rem; }
.btn--block { width: 100%; }
.btn[disabled] { cursor: progress; opacity: 0.7; }

.text-link {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 44px;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  border-bottom: 1px solid var(--c-border-strong);
  transition: border-color var(--t-control) var(--ease);
}
.text-link:hover { border-color: var(--c-accent); }
.text-link .icon { transition: transform var(--t-control) var(--ease); }
.text-link:hover .icon { transform: translateX(3px); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius);
  font-size: 20px;
  transition: border-color var(--t-micro) var(--ease), color var(--t-micro) var(--ease);
}
.icon-btn:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* Form fields (calculator + booking) */
.field { display: grid; gap: 8px; min-width: 0; align-content: start; }
.field-label { display: flex; justify-content: space-between; gap: 12px; color: var(--c-muted); }
.field-label .req { color: var(--c-titanium); }
.field-label .opt { color: var(--c-titanium); }
.field-help { font-size: 0.75rem; color: var(--c-titanium); }
.field-error { display: flex; gap: 8px; align-items: baseline; font-size: 0.8125rem; color: var(--c-error); }
.field-error:empty { display: none; }
.field-error::before { content: "!"; flex: none; display: inline-grid; place-items: center; width: 16px; height: 16px; border: 1px solid currentColor; font-family: var(--font-mono); font-size: 0.6875rem; line-height: 1; }
.input, .select {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  background: var(--c-obsidian);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius);
  color: var(--c-text);
  font-size: 1rem;
  transition: border-color var(--t-micro) var(--ease), background-color var(--t-micro) var(--ease);
}
.input::placeholder { color: #6E6E6E; }
.input:hover, .select:hover { border-color: rgba(255, 255, 255, 0.4); }
.input:focus-visible, .select:focus-visible { outline: 2px solid var(--c-text); outline-offset: 2px; border-color: var(--c-text); }
.input[aria-invalid="true"], .select[aria-invalid="true"] { border-color: var(--c-error); border-style: dashed; }
input[type="date"].input { color-scheme: dark; }
input[type="date"].input::-webkit-calendar-picker-indicator { filter: invert(0.9); cursor: pointer; }
.select-wrap { position: relative; }
.select-wrap::after {
  content: "";
  position: absolute; right: 18px; top: 50%;
  width: 8px; height: 8px;
  margin-top: -6px;
  border-right: 1.5px solid var(--c-muted);
  border-bottom: 1.5px solid var(--c-muted);
  transform: rotate(45deg);
  pointer-events: none;
}
.select { appearance: none; -webkit-appearance: none; padding-right: 48px; cursor: pointer; }
.select option, .select optgroup { background: var(--c-graphite); color: var(--c-text); }

/* 7 ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background-color var(--t-control) var(--ease), border-color var(--t-control) var(--ease);
}
.site-header.is-scrolled,
.site-header.is-menu-open { background: rgba(10, 10, 10, 0.94); border-bottom-color: var(--c-border); }
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.wordmark { display: inline-flex; align-items: baseline; gap: 14px; line-height: 1; }
.wordmark-name {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: 0.16em;
}
.wordmark-sub {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-titanium);
}
.nav { margin-left: auto; }
.nav-list { display: flex; gap: clamp(18px, 2.4vw, 36px); }
.nav-link {
  position: relative;
  display: inline-flex; align-items: center; gap: 8px;
  padding-block: 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-muted);
  transition: color var(--t-micro) var(--ease);
}
.nav-index { color: var(--c-titanium); font-size: 0.5625rem; }
.nav-link::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 6px;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-control) var(--ease);
}
.nav-link:hover, .nav-link:focus-visible { color: var(--c-text); }
.nav-link:hover::after, .nav-link:focus-visible::after { transform: scaleX(1); }
.nav-link.is-active { color: var(--c-text); }
.nav-link.is-active .nav-index { color: var(--c-accent); }
.nav-panel-foot { display: none; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius);
}
.menu-toggle-bars, .menu-toggle-bars::before, .menu-toggle-bars::after {
  display: block;
  width: 18px; height: 1.5px;
  background: var(--c-text);
  transition: transform var(--t-control) var(--ease), opacity var(--t-micro) var(--ease);
}
.menu-toggle-bars { position: relative; }
.menu-toggle-bars::before, .menu-toggle-bars::after { content: ""; position: absolute; left: 0; }
.menu-toggle-bars::before { top: -6px; }
.menu-toggle-bars::after { top: 6px; width: 12px; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bars { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bars::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-bars::after { width: 18px; transform: translateY(-6px) rotate(-45deg); }

/* 8 ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: max(640px, 100svh);
  display: flex;
  padding-top: var(--header-h);
  isolation: isolate;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 62%;
  z-index: -1;
}
/* Mirrored so the truck faces into the page; crop keeps the whole truck right of the headline. */
.hero-img { width: 100%; height: 100%; object-fit: cover; object-position: 84% 58%; transform: scaleX(-1); }
.hero-shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--c-obsidian) 0%, rgba(10, 10, 10, 0.7) 10%, rgba(10, 10, 10, 0.15) 26%, rgba(10, 10, 10, 0) 40%),
    linear-gradient(0deg, var(--c-obsidian) 0%, rgba(10, 10, 10, 0.5) 18%, rgba(10, 10, 10, 0) 42%),
    linear-gradient(180deg, rgba(10, 10, 10, 0.55) 0%, rgba(10, 10, 10, 0) 22%);
}
.hero-figure {
  position: absolute; top: calc(var(--header-h) + 24px); right: var(--gutter);
  display: flex; flex-direction: column; align-items: flex-end; gap: 2px;
  color: rgba(242, 240, 235, 0.78);
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: 1fr auto;
  column-gap: 24px;
  padding-top: clamp(32px, 6vh, 72px);
}
.hero-copy { grid-column: 1 / 9; grid-row: 1; align-self: center; padding-bottom: clamp(32px, 5vh, 56px); }
.hero-title {
  margin-top: 26px;
  font-size: clamp(3.25rem, min(7.6vw, 12.5vh), 10rem);
  line-height: 0.86;
  letter-spacing: -0.005em;
}
.mask { display: block; overflow: hidden; padding-bottom: 0.04em; margin-bottom: -0.04em; }
.mask-line { display: block; }
.hero-title-alt { color: var(--c-titanium); }
.hero-lede { margin-top: 32px; font-size: var(--fs-lede); color: var(--c-muted); max-width: 40ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px 16px; margin-top: 36px; }

.hero-detail {
  grid-column: 10 / 13; grid-row: 1;
  align-self: start;
  justify-self: end;
  width: min(100%, 208px);
  margin-top: clamp(24px, 5vh, 56px);
  border: 1px solid var(--c-border-strong);
  background: var(--c-obsidian);
}
.hero-detail img { aspect-ratio: 3 / 2; width: 100%; object-fit: cover; filter: grayscale(0.25) contrast(1.05); }
.hero-detail figcaption { display: flex; justify-content: space-between; gap: 8px; padding: 10px 12px; border-top: 1px solid var(--c-border); }

.hero-meta {
  grid-column: 1 / 11; grid-row: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--c-border);
  padding-block: 18px 24px;
  gap: 16px;
}
.hero-meta dd { margin-top: 4px; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--c-text); }
.scroll-cue {
  grid-column: 11 / 13; grid-row: 2;
  justify-self: end; align-self: center;
  display: inline-flex; align-items: center; gap: 12px;
  min-height: 44px;
  font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--c-muted);
}
.scroll-cue-line { position: relative; width: 1px; height: 36px; background: var(--c-border-strong); overflow: hidden; }
.scroll-cue-line::after { content: ""; position: absolute; left: 0; top: 0; width: 1px; height: 12px; background: var(--c-accent); animation: cue 2.2s var(--ease) infinite; }
@keyframes cue { 0% { transform: translateY(-12px); } 70%, 100% { transform: translateY(36px); } }
.scroll-cue:hover { color: var(--c-text); }

/* 9 ---------- Manifesto ---------- */
.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(32px, 4vw, 56px) 24px;
}
.manifesto-copy { grid-column: 1 / 8; }
.manifesto-copy .lede { margin-top: 36px; color: var(--c-text); max-width: 40ch; }
.manifesto-media { grid-column: 8 / 13; grid-row: 1 / 3; position: relative; padding-bottom: 18%; }
.manifesto-main { aspect-ratio: 4 / 5; }
.manifesto-main img { object-position: 40% 50%; }
.manifesto-inset {
  position: absolute; left: -22%; bottom: 0;
  width: 58%;
  aspect-ratio: 3 / 2;
  border: 6px solid var(--c-obsidian);
  outline: 1px solid var(--c-border);
}
.manifesto-inset figcaption { font-size: 0.5625rem; }
.principles {
  grid-column: 1 / 7;
  align-self: end;
  border-top: 1px solid var(--c-border);
}
.principle {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: 16px;
  padding-block: 22px;
  border-bottom: 1px solid var(--c-border);
}
.principle-num { grid-row: 1 / 3; color: var(--c-accent); padding-top: 4px; }
.principle-title { font-family: var(--font-display); font-weight: 500; font-size: var(--fs-h3); text-transform: uppercase; letter-spacing: 0.02em; line-height: 1.1; }
.principle p { margin-top: 8px; color: var(--c-muted); font-size: 0.9375rem; max-width: 52ch; }

/* 10 ---------- Fleet ---------- */
.fleet { background: var(--c-graphite); border-block: 1px solid var(--c-border); }
.fleet-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border);
}
.filters { display: flex; flex-wrap: wrap; gap: 4px; }
.filter {
  position: relative;
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-muted);
  transition: color var(--t-micro) var(--ease), border-color var(--t-control) var(--ease), background-color var(--t-control) var(--ease);
}
.filter::after {
  content: "";
  position: absolute; left: 16px; right: 16px; bottom: -17px;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-control) var(--ease);
}
.filter:hover { color: var(--c-text); border-color: var(--c-border); }
.filter[aria-pressed="true"] { color: var(--c-text); border-color: var(--c-accent-line); background: var(--c-accent-soft); }
.filter[aria-pressed="true"]::after { transform: scaleX(1); }
.filter-count { color: var(--c-titanium); font-size: 0.625rem; }
.filter[aria-pressed="true"] .filter-count { color: var(--c-accent); }
.fleet-count { color: var(--c-muted); }

.fleet-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.card {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--c-obsidian);
  border: 1px solid var(--c-border);
  transition: opacity var(--t-card) var(--ease), transform var(--t-card) var(--ease), border-color var(--t-card) var(--ease);
}
/* Corner ticks */
.card::before, .card::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border-color: var(--c-accent);
  border-style: solid;
  opacity: 0;
  transition: opacity var(--t-card) var(--ease), transform var(--t-card) var(--ease);
  pointer-events: none;
  z-index: 2;
}
.card::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; transform: translate(4px, 4px); }
.card::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; transform: translate(-4px, -4px); }
.card.is-selected { border-color: var(--c-accent-line); }
.card.is-selected::before, .card.is-selected::after { opacity: 1; transform: none; }
.card.is-out { opacity: 0; transform: translateY(10px); }
.card.is-in { opacity: 0; transform: translateY(14px); transition: none; }

.card-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--c-surface); }
.card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: var(--focus, 50% 50%);
  transition: transform var(--t-card) var(--ease), filter var(--t-card) var(--ease);
  filter: saturate(0.86) contrast(1.04);
}
.card-media.is-broken img { visibility: hidden; }
.card-media.is-broken::after {
  content: attr(data-fallback);
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: var(--fs-tech); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--c-titanium);
  background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 12px), var(--c-surface);
}
.card-code {
  position: absolute; top: 12px; left: 12px;
  padding: 4px 8px;
  background: rgba(10, 10, 10, 0.78);
  color: var(--c-text);
}

.card-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-graphite);
}
.card-spec { display: grid; grid-template-columns: 18px minmax(0, 1fr); column-gap: 10px; align-items: start; }
.card-spec .icon { font-size: 16px; color: var(--c-accent); margin-top: 2px; grid-row: 1 / 3; }
.card-spec dt { font-family: var(--font-mono); font-size: 0.5625rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-titanium); }
.card-spec dd { font-size: 0.8125rem; line-height: 1.35; color: var(--c-text); }
.card-spec--wide { grid-column: 1 / -1; }

.card-body { display: flex; flex-direction: column; gap: 10px; flex: 1; padding: 20px 20px 22px; }
.card-meta { display: flex; justify-content: space-between; gap: 12px; }
.card-avail { display: inline-flex; align-items: center; gap: 6px; }
.card-avail::before { content: ""; width: 6px; height: 6px; background: currentColor; }
.card-avail--open { color: var(--c-text); }
.card-avail--limited { color: var(--c-accent); }
.card-avail--request { color: var(--c-titanium); }
.card-name { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.625rem, 2.2vw, 2.125rem); line-height: 1; text-transform: uppercase; letter-spacing: 0.01em; }
.card-desc { color: var(--c-muted); font-size: 0.9375rem; line-height: 1.5; }
.card-foot {
  margin-top: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
}
.card-price { font-family: var(--font-display); font-size: 1.625rem; font-weight: 500; line-height: 1; white-space: nowrap; }
.card-price small { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.12em; color: var(--c-titanium); margin-left: 6px; text-transform: uppercase; }
.card-btn { min-height: 44px; padding: 0 14px; border-color: var(--c-border-strong); font-size: 0.6875rem; }
.card-btn:hover, .card-btn:focus-visible { border-color: var(--c-accent); background: var(--c-accent); color: var(--c-obsidian); }
.card.is-selected .card-btn { border-color: var(--c-accent); color: var(--c-accent); }
.card.is-selected .card-btn:hover { color: var(--c-obsidian); }

/* Hover-capable pointers: specs become a reveal panel over the image. */
@media (hover: hover) and (pointer: fine) {
  .card-specs {
    position: absolute; left: 0; right: 0; top: 0;
    aspect-ratio: 4 / 3;
    align-content: end;
    padding: 20px;
    border: 0;
    background: linear-gradient(0deg, rgba(10, 10, 10, 0.96) 0%, rgba(10, 10, 10, 0.9) 58%, rgba(10, 10, 10, 0.55) 80%, rgba(10, 10, 10, 0.1) 100%);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--t-card) var(--ease), transform var(--t-card) var(--ease);
    pointer-events: none;
    z-index: 1;
  }
  .card:hover .card-specs, .card:focus-within .card-specs { opacity: 1; transform: none; }
  .card:hover .card-media img, .card:focus-within .card-media img { transform: scale(1.05) translateY(-1.5%); filter: saturate(0.95) contrast(1.06) brightness(0.9); }
  .card:hover { border-color: var(--c-border-strong); }
  .card:hover::before, .card:hover::after { opacity: 1; transform: none; }
}

.fleet-empty { padding: 48px 0; color: var(--c-muted); border-bottom: 1px solid var(--c-border); }
.fleet .fine-print { margin-top: 28px; }

/* 11 ---------- Performance ---------- */
.performance { overflow: hidden; }
.performance::before {
  /* Technical grid, faded towards the edges */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.35;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 50%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 70% 50%, #000 0%, transparent 75%);
  pointer-events: none;
}
.performance-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
  align-items: center;
}
.performance-media { grid-column: 1 / 6; aspect-ratio: 4 / 5.2; }
.performance-media img { object-position: 40% 55%; }
.performance-copy { grid-column: 7 / 13; }
.performance-copy .display-lg { margin-top: 22px; }
.performance-copy .lede { margin-top: 24px; }
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(36px, 4vw, 56px);
  border-top: 1px solid var(--c-border);
  border-left: 1px solid var(--c-border);
}
.spec {
  padding: 20px 22px 24px;
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: rgba(10, 10, 10, 0.6);
}
.spec-label { display: flex; align-items: center; gap: 10px; }
.spec-label .icon { font-size: 16px; color: var(--c-accent); }
.spec dd:first-of-type { display: flex; align-items: baseline; gap: 8px; margin-top: 14px; }
.spec-value { font-family: var(--font-display); font-weight: 600; font-size: clamp(3rem, 5.6vw, 5.75rem); line-height: 0.9; font-variant-numeric: tabular-nums; }
.spec-unit { font-family: var(--font-mono); font-size: 0.8125rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-muted); }
.spec-note { margin-top: 10px; font-size: 0.8125rem; color: var(--c-muted); }
.terrain { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 28px; }
.terrain-list { display: flex; flex-wrap: wrap; gap: 6px; }
.terrain-list li {
  padding: 6px 10px;
  border: 1px solid var(--c-border-strong);
  font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.1em; text-transform: uppercase;
}
.performance-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 24px; margin-top: 36px; }

/* 12 ---------- Calculator ---------- */
.calculator { background: var(--c-graphite); border-block: 1px solid var(--c-border); }
.calc {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
  border: 1px solid var(--c-border);
  background: var(--c-obsidian);
}
.calc-controls { display: grid; gap: 40px; align-content: start; padding: clamp(24px, 3.4vw, 48px); }
.duration-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.duration-value { font-family: var(--font-display); font-weight: 600; font-size: clamp(3rem, 5vw, 4.75rem); line-height: 0.9; font-variant-numeric: tabular-nums; }
.duration-unit { font-family: var(--font-mono); font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--c-muted); }
.duration .range { margin-top: 18px; }

.range {
  --fill: 15.38%;
  width: 100%;
  height: 44px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  touch-action: pan-y;
}
.range:focus-visible { outline-offset: 4px; }
.range::-webkit-slider-runnable-track {
  height: 4px;
  background: linear-gradient(90deg, var(--c-accent) 0 var(--fill), rgba(255, 255, 255, 0.18) var(--fill) 100%);
}
.range::-moz-range-track { height: 4px; background: rgba(255, 255, 255, 0.18); }
.range::-moz-range-progress { height: 4px; background: var(--c-accent); }
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 28px; height: 28px;
  margin-top: -12px;
  background: var(--c-text);
  border: 6px solid var(--c-accent);
  border-radius: 0;
  transition: transform var(--t-micro) var(--ease);
}
.range::-moz-range-thumb {
  width: 16px; height: 16px;
  background: var(--c-text);
  border: 6px solid var(--c-accent);
  border-radius: 0;
}
.range:active::-webkit-slider-thumb { transform: scale(1.12); }
/* Ticks sit under the thumb centre for that day: 14px half-thumb inset each side. */
.range-scale { position: relative; height: 18px; margin-top: 2px; }
.range-scale span { position: absolute; top: 0; left: calc(14px + (100% - 28px) * var(--at)); transform: translateX(-50%); }
.duration .field-help { margin-top: 10px; }

.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--c-border); }
.tier {
  position: relative;
  display: grid; gap: 4px;
  padding: 16px 12px 0 0;
  color: var(--c-titanium);
  transition: color var(--t-control) var(--ease);
}
.tier + .tier { padding-left: 14px; border-left: 1px solid var(--c-border); }
.tier::before {
  content: "";
  position: absolute; top: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--c-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-control) var(--ease);
}
.tier-rate { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; text-transform: uppercase; line-height: 1.1; }
.tier.is-active { color: var(--c-text); }
.tier.is-active .tier-range { color: var(--c-accent); }
.tier.is-active::before { transform: scaleX(1); }

.calc-summary {
  display: flex; flex-direction: column;
  padding: clamp(24px, 3.4vw, 48px);
  border-left: 1px solid var(--c-border);
  background: var(--c-surface);
}
.calc-summary-head { display: flex; justify-content: space-between; gap: 12px; }
.calc-machine { margin-top: 14px; font-family: var(--font-display); font-size: var(--fs-h3); font-weight: 500; text-transform: uppercase; line-height: 1.1; }
.quote { margin-top: 20px; border-top: 1px solid var(--c-border); }
.quote-row { display: flex; justify-content: space-between; gap: 16px; padding-block: 12px; border-bottom: 1px solid var(--c-border); font-size: 0.9375rem; }
.quote-row dt { color: var(--c-muted); }
.quote-row dd { font-variant-numeric: tabular-nums; text-align: right; }
.quote-row dd.has-discount { color: var(--c-accent); }
.quote-total { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.quote-total-value { font-family: var(--font-display); font-weight: 600; font-size: clamp(2.75rem, 4.4vw, 4.25rem); line-height: 0.9; font-variant-numeric: tabular-nums; white-space: nowrap; }
.quote-effective { margin-top: 10px; text-align: right; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; color: var(--c-muted); }
.calc-summary .btn { margin-top: 28px; }
.calc-summary .fine-print { margin-top: 12px; }

/* 13 ---------- Experience ---------- */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(40px, 5vw, 72px) 24px;
}
.experience-copy { grid-column: 1 / 7; }
.experience-copy .display-lg { margin-top: 22px; }
.steps { margin-top: clamp(40px, 5vw, 72px); border-top: 1px solid var(--c-border); }
.step {
  display: grid;
  grid-template-columns: clamp(72px, 9vw, 128px) minmax(0, 1fr);
  gap: 16px;
  padding-block: 26px;
  border-bottom: 1px solid var(--c-border);
}
.step-num { font-family: var(--font-display); font-weight: 500; font-size: clamp(2.5rem, 4.4vw, 4rem); line-height: 0.9; color: transparent; -webkit-text-stroke: 1px var(--c-titanium); }
.step-title { font-family: var(--font-display); font-weight: 600; font-size: var(--fs-h3); text-transform: uppercase; letter-spacing: 0.01em; line-height: 1.1; }
.step p { margin-top: 8px; color: var(--c-muted); font-size: 0.9375rem; max-width: 48ch; }
.experience-side { grid-column: 8 / 13; display: grid; gap: 36px; align-content: start; }
.experience-media { aspect-ratio: 4 / 4.6; }
.experience-media img { object-position: 30% 60%; }
.features h3 { padding-bottom: 12px; border-bottom: 1px solid var(--c-border); }
.feature-list li { display: grid; gap: 2px; padding-block: 12px; border-bottom: 1px solid var(--c-border); }
.feature-name { font-weight: 600; font-size: 0.9375rem; }
.feature-desc { color: var(--c-muted); font-size: 0.875rem; }
.features .fine-print { margin-top: 14px; }

/* 14 ---------- Final CTA ---------- */
.final {
  position: relative;
  min-height: clamp(560px, 92svh, 980px);
  display: flex; align-items: flex-end;
  isolation: isolate;
  overflow: hidden;
  border-top: 1px solid var(--c-border);
}
.final-media { position: absolute; inset: 0; z-index: -1; }
.final-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 58%; }
.final-media::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(0deg, var(--c-obsidian) 0%, rgba(10, 10, 10, 0.55) 38%, rgba(10, 10, 10, 0.15) 70%, rgba(10, 10, 10, 0.4) 100%),
    linear-gradient(90deg, rgba(10, 10, 10, 0.55) 0%, rgba(10, 10, 10, 0) 60%);
}
.final-inner { padding-block: var(--section-space) clamp(56px, 7vw, 104px); }
.final .display-xl { margin-top: 24px; max-width: 12ch; }
.final .lede { margin-top: 28px; color: var(--c-text); }
.final-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 40px; }

/* 15 ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--c-border); background: var(--c-obsidian); padding-top: clamp(56px, 7vw, 96px); }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr) minmax(0, 1fr);
  gap: 40px;
  padding-bottom: clamp(48px, 6vw, 80px);
}
.footer-wordmark { font-family: var(--font-display); font-weight: 600; font-size: clamp(3rem, 7vw, 6.5rem); line-height: 0.85; letter-spacing: 0.08em; }
.footer-brand .tech { margin-top: 14px; }
.footer-heading { margin-bottom: 16px; }
.footer-nav a { display: inline-flex; min-height: 36px; align-items: center; color: var(--c-muted); font-size: 0.9375rem; transition: color var(--t-micro) var(--ease); }
.footer-nav a:hover { color: var(--c-accent); }
.footer-contact p { color: var(--c-muted); font-size: 0.9375rem; max-width: 40ch; }
.footer-contact .btn { margin-top: 20px; }
.footer-bottom {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 40px;
  align-items: baseline;
  padding-block: 22px 28px;
  border-top: 1px solid var(--c-border);
}
.footer-disclaimer { justify-self: end; max-width: 78ch; font-size: 0.75rem; color: var(--c-titanium); text-align: right; }

/* 16 ---------- Booking dialog ---------- */
.booking {
  width: min(100% - 24px, 760px);
  max-width: none;
  max-height: calc(100dvh - 24px);
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--c-text);
  overflow: visible;
}
.booking::backdrop {
  background: rgba(6, 6, 6, 0.74);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.booking-panel {
  position: relative;
  max-height: calc(100dvh - 24px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(20px, 3.6vw, 40px);
  background: var(--c-graphite);
  border: 1px solid var(--c-border-strong);
  border-top: 2px solid var(--c-accent);
}
.booking[open] .booking-panel { animation: modal-in var(--t-modal) var(--ease) both; }
.booking[open]::backdrop { animation: fade-in var(--t-modal) var(--ease) both; }
.booking.is-closing .booking-panel { animation: modal-out 240ms var(--ease) both; }
.booking.is-closing::backdrop { animation: fade-out 240ms var(--ease) both; }
@keyframes modal-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
@keyframes modal-out { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateY(12px); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes fade-out { from { opacity: 1; } to { opacity: 0; } }

.booking-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.booking-title { margin-top: 18px; font-family: var(--font-display); font-weight: 600; font-size: clamp(2.25rem, 5vw, 3.5rem); line-height: 0.92; text-transform: uppercase; }
.booking-sub { margin-top: 12px; color: var(--c-muted); font-size: 0.9375rem; max-width: 52ch; }
.booking-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px 24px;
  align-items: end;
  margin-top: 24px;
  padding: 18px 20px;
  background: var(--c-obsidian);
  border: 1px solid var(--c-border);
}
.bk-sum-machine { display: grid; gap: 4px; min-width: 0; }
.bk-sum-machine strong { font-family: var(--font-display); font-weight: 500; font-size: 1.5rem; line-height: 1.05; text-transform: uppercase; }
.bk-sum-dates { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.04em; color: var(--c-muted); }
.bk-sum-quote { display: flex; gap: 22px; text-align: right; }
.bk-sum-quote dd { font-variant-numeric: tabular-nums; font-size: 0.9375rem; white-space: nowrap; }
.bk-sum-total dd { font-family: var(--font-display); font-size: 1.75rem; font-weight: 600; line-height: 1; color: var(--c-accent); }
.booking-form { margin-top: 24px; }
.booking-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
  margin: 0; padding: 0; border: 0; min-width: 0;
}
.field--full { grid-column: 1 / -1; }
.booking-fields:disabled { opacity: 0.7; }
.booking-actions { display: grid; gap: 12px; margin-top: 28px; }
.spinner {
  width: 14px; height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.booking-success { padding-top: 8px; }
.booking-success:focus { outline: none; }
.route { display: block; width: 100%; max-width: 360px; height: auto; margin: 12px 0 20px; overflow: visible; }
.route path { fill: none; stroke-width: 2; }
.route-base { stroke: var(--c-border-strong); stroke-dasharray: 3 5; }
.route-line { stroke: var(--c-accent); stroke-dasharray: 420; stroke-dashoffset: 420; }
.route-start { fill: var(--c-text); }
.route-end { fill: var(--c-accent); opacity: 0; }
.booking-success.is-entering .route-line { animation: draw 1.1s var(--ease) 0.1s forwards; }
.booking-success.is-entering .route-end { animation: fade-in 0.3s var(--ease) 1.05s forwards; }
.booking-success.is-entering > :not(.route) { animation: modal-in 0.5s var(--ease) both; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.success-list { margin-top: 24px; border-top: 1px solid var(--c-border); }
.success-list div { display: flex; justify-content: space-between; gap: 16px; padding-block: 11px; border-bottom: 1px solid var(--c-border); font-size: 0.9375rem; }
.success-list dt { color: var(--c-muted); }
.success-list dd { text-align: right; font-variant-numeric: tabular-nums; }
.success-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* 17 ---------- Motion: entrance + reveals (armed by JS only) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .js .seq { animation: rise 720ms var(--ease) both; animation-delay: calc(var(--seq, 0) * 70ms); }
  .js .mask-line.seq { animation-name: line-up; animation-duration: 820ms; }
  .js .hero-media { animation: settle 1600ms var(--ease) both; }

  .reveal-armed .reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity var(--t-reveal) var(--ease), transform var(--t-reveal) var(--ease);
    transition-delay: var(--delay, 0ms);
  }
  .reveal-armed .reveal.is-visible { opacity: 1; transform: none; }
}
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes line-up { from { transform: translateY(104%); } to { transform: none; } }
@keyframes settle { from { opacity: 0; transform: scale(1.04); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
  }
  .scroll-cue-line::after { display: none; }
  .route-line { stroke-dashoffset: 0; }
  .route-end { opacity: 1; }
}

/* 18 ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .fleet-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-media { width: 70%; }
  .hero-copy { grid-column: 1 / 10; }
  .hero-detail { display: none; }
  .hero-meta { grid-column: 1 / 10; }
  .scroll-cue { grid-column: 10 / 13; }
}

@media (max-width: 1024px) {
  .nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    height: calc(100dvh - var(--header-h));
    display: flex; flex-direction: column; justify-content: space-between;
    gap: 32px;
    margin: 0;
    padding: 12px var(--gutter) calc(24px + env(safe-area-inset-bottom));
    background: var(--c-obsidian);
    border-top: 1px solid var(--c-border);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--t-control) var(--ease), transform var(--t-control) var(--ease), visibility 0s linear var(--t-control);
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity var(--t-control) var(--ease), transform var(--t-control) var(--ease), visibility 0s; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-link {
    display: flex; width: 100%;
    gap: 18px;
    padding-block: 18px;
    border-bottom: 1px solid var(--c-border);
    font-family: var(--font-display);
    font-size: clamp(2rem, 8vw, 3rem);
    font-weight: 600;
    letter-spacing: 0.01em;
    color: var(--c-text);
    line-height: 1;
  }
  .nav-link::after { display: none; }
  .nav-index { font-family: var(--font-mono); font-size: 0.6875rem; color: var(--c-accent); align-self: flex-start; padding-top: 4px; }
  .nav-panel-foot { display: grid; gap: 14px; }
  .menu-toggle { display: inline-flex; }

  .hero { min-height: auto; }
  .hero-media { position: relative; width: 100%; height: auto; aspect-ratio: 16 / 10; order: -1; z-index: 0; }
  .hero { flex-direction: column; }
  .hero-img { object-position: 30% 62%; }
  .hero-shade {
    background:
      linear-gradient(0deg, var(--c-obsidian) 0%, rgba(10, 10, 10, 0.35) 30%, rgba(10, 10, 10, 0) 55%),
      linear-gradient(180deg, rgba(10, 10, 10, 0.5) 0%, rgba(10, 10, 10, 0) 25%);
  }
  .hero-figure { top: 16px; }
  .hero-grid { margin-top: clamp(-120px, -10vw, -48px); padding-top: 0; }
  .hero-copy, .hero-meta { grid-column: 1 / -1; }
  .hero-copy { padding-bottom: 36px; }
  .hero-title { font-size: clamp(3rem, 11.5vw, 7rem); }
  .scroll-cue { display: none; }

  .section-head { grid-template-columns: minmax(0, 1fr); }
  .section-head .lede { justify-self: start; }

  .manifesto-copy { grid-column: 1 / -1; }
  .manifesto-media { grid-column: 3 / 13; grid-row: auto; }
  .principles { grid-column: 1 / -1; }

  .performance-media { grid-column: 1 / -1; aspect-ratio: 16 / 11; }
  .performance-copy { grid-column: 1 / -1; }

  .calc { grid-template-columns: minmax(0, 1fr); }
  .calc-summary { border-left: 0; border-top: 1px solid var(--c-border); }

  .experience-copy, .experience-side { grid-column: 1 / -1; }
  .experience-side { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }

  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  :root { --header-h: 60px; }
  .wordmark-sub { display: none; }

  .hero-media { aspect-ratio: 4 / 3.4; }
  .hero-figure { display: none; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-meta { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .hero-meta-ref { grid-column: 1 / -1; }

  .index-row { flex-direction: column; gap: 4px; }
  .manifesto-media { grid-column: 1 / -1; padding-bottom: 26%; }
  .manifesto-inset { left: auto; right: 0; width: 62%; }
  .principle { grid-template-columns: 40px minmax(0, 1fr); }

  .fleet-toolbar { align-items: flex-start; flex-direction: column; }
  .filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; gap: 6px; }
  .filter { justify-content: space-between; border-color: var(--c-border); }
  .filter::after { bottom: -1px; left: 0; right: 0; }
  .fleet-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }

  .spec-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .spec { padding: 16px 14px 18px; }
  .spec-value { font-size: clamp(2.5rem, 12vw, 3.5rem); }

  .tiers { grid-template-columns: minmax(0, 1fr); }
  .tier, .tier + .tier { padding: 12px 0; border-left: 0; border-bottom: 1px solid var(--c-border); grid-template-columns: minmax(0, 1fr) auto; align-items: baseline; }
  .tier::before { top: auto; bottom: -1px; }

  .experience-side { grid-template-columns: minmax(0, 1fr); }
  .step { grid-template-columns: 64px minmax(0, 1fr); }

  .final-actions .btn { flex: 1 1 100%; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { grid-template-columns: minmax(0, 1fr); }
  .footer-disclaimer { justify-self: start; text-align: left; }

  .booking { width: 100%; max-height: 100dvh; margin: auto 0 0; }
  .booking-panel { max-height: 100dvh; padding-bottom: calc(24px + env(safe-area-inset-bottom)); border-left: 0; border-right: 0; }
  .booking-fields { grid-template-columns: minmax(0, 1fr); }
  .booking-summary { grid-template-columns: minmax(0, 1fr); }
  .bk-sum-quote { justify-content: space-between; text-align: left; }
}

@media (max-width: 380px) {
  .header-cta { padding: 0 12px; letter-spacing: 0.1em; }
  .wordmark-name { font-size: 1.1875rem; letter-spacing: 0.12em; }
  .btn { padding: 0 16px; letter-spacing: 0.1em; }
  .card-foot { flex-wrap: wrap; }
  .card-btn { flex: 1 1 100%; }
  .card-specs { grid-template-columns: minmax(0, 1fr); }
  .spec-grid { grid-template-columns: minmax(0, 1fr); }
  .quote-total-value { font-size: 2.5rem; }
  .bk-sum-quote { flex-wrap: wrap; gap: 10px 18px; }
}