/* ==========================================================================
   Oz Air Automotive — design system
   Palette taken from the business's own livery: logo navy, business-card
   cyan, van powder blue.
   Motif: the manifold gauge set — cold-side readouts and dash-vent louvres.
   ========================================================================== */

/* ---- Tokens: light is the base. Every colour is declared here. ----------
   Every brand value below is sampled from Oz Air Automotive's own artwork:
   #0D2330 the logo navy off the van, #74C6E3 the cyan off the business card,
   #ADC3D1 the van's powder-blue body.
   ------------------------------------------------------------------------ */
:root {
  /* brand ramp */
  --navy-900: #071720;
  --navy-800: #0D2330;  /* logo navy, sampled from the van */
  --navy-700: #14313F;
  --navy-600: #1D4152;
  --ice-700:  #0E4D62;
  --ice-600:  #115C74;  /* darkened cyan: text-safe on light grounds */
  --ice-500:  #74C6E3;  /* brand cyan, sampled from the business card */
  --ice-400:  #97D6ED;
  --frost-200:#ADC3D1;  /* van body powder blue */
  --frost-100:#DDE9F0;
  --frost-050:#EFF5F9;
  --paper:    #F4F8FB;

  /* neutrals, biased a few degrees toward the accent */
  --slate-700: #24353E;
  --slate-500: #4E6875;
  --slate-400: #78909C;
  --slate-200: #BFD0D9;
  --slate-100: #DCE7ED;

  /* semantic */
  --bg:         var(--paper);
  --bg-sunk:    var(--frost-050);
  --surface:    #FFFFFF;
  --surface-2:  var(--frost-050);
  --ink:        var(--navy-800);
  --ink-2:      var(--slate-500);
  --ink-3:      var(--slate-400);
  --line:       var(--slate-100);
  --line-strong:var(--slate-200);
  --brand:      var(--navy-800);
  --brand-2:    var(--navy-700);
  --on-brand:   #E9F4F9;
  --on-brand-2: #A6C3D1;
  --accent:     var(--ice-600);   /* text and icons on light */
  --accent-fill:var(--ice-500);   /* button and stripe fills */
  --accent-soft:var(--frost-100);
  --on-accent:  var(--navy-800);
  --ring:       var(--ice-600);
  --shadow-sm:  0 1px 2px rgba(7, 23, 32, .06), 0 2px 8px rgba(7, 23, 32, .05);
  --shadow-md:  0 2px 4px rgba(7, 23, 32, .07), 0 12px 28px rgba(7, 23, 32, .09);

  /* type */
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Source Sans 3", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* scale */
  --step--1: clamp(.82rem, .80rem + .1vw, .88rem);
  --step-0:  clamp(1rem, .97rem + .15vw, 1.08rem);
  --step-1:  clamp(1.18rem, 1.10rem + .35vw, 1.35rem);
  --step-2:  clamp(1.42rem, 1.28rem + .62vw, 1.80rem);
  --step-3:  clamp(1.70rem, 1.45rem + 1.1vw, 2.45rem);
  --step-4:  clamp(2.05rem, 1.60rem + 2.0vw, 3.20rem);
  --step-5:  clamp(2.25rem, 1.75rem + 2.1vw, 3.60rem);

  --wrap: 1180px;
  --measure: 66ch;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;

  color-scheme: light;
}

/* Dark: the business card's world — brushed charcoal ground, cyan on top. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:         #0A1B24;
    --bg-sunk:    #071720;
    --surface:    #102C3A;
    --surface-2:  #143544;
    --ink:        #E9F4F9;
    --ink-2:      #A6C3D1;
    --ink-3:      #78909C;
    --line:       #1E4252;
    --line-strong:#2A5B70;
    --brand:      #071720;
    --brand-2:    #102C3A;
    --on-brand:   #E9F4F9;
    --on-brand-2: #A6C3D1;
    --accent:     var(--ice-500);
    --accent-fill:var(--ice-500);
    --accent-soft:#14313F;
    --on-accent:  var(--navy-800);
    --ring:       var(--ice-500);
    --shadow-sm:  0 1px 2px rgba(0,0,0,.4);
    --shadow-md:  0 2px 6px rgba(0,0,0,.45), 0 16px 34px rgba(0,0,0,.4);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg:         #0A1B24;
  --bg-sunk:    #071720;
  --surface:    #102C3A;
  --surface-2:  #143544;
  --ink:        #E9F4F9;
  --ink-2:      #A6C3D1;
  --ink-3:      #78909C;
  --line:       #1E4252;
  --line-strong:#2A5B70;
  --brand:      #071720;
  --brand-2:    #102C3A;
  --on-brand:   #E9F4F9;
  --on-brand-2: #A6C3D1;
  --accent:     var(--ice-500);
  --accent-fill:var(--ice-500);
  --accent-soft:#14313F;
  --on-accent:  var(--navy-800);
  --ring:       var(--ice-500);
  --shadow-sm:  0 1px 2px rgba(0,0,0,.4);
  --shadow-md:  0 2px 6px rgba(0,0,0,.45), 0 16px 34px rgba(0,0,0,.4);
  color-scheme: dark;
}

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

/* Author styles beat the UA sheet, so [hidden] needs restating or the
   layout classes below would keep the collapsed mobile nav visible. */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.62;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.018em;
  text-wrap: balance;
  margin: 0;
  color: var(--ink);
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); letter-spacing: -.01em; }
h4 { font-size: var(--step-0); letter-spacing: 0; }

p { margin: 0; }

a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible,
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

:where(ul, ol) { margin: 0; padding: 0; list-style: none; }

/* ---- Layout primitives -------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 20px;
}
@media (max-width: 480px) { .wrap { padding-inline: 16px; } }

.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section--tight { padding-block: clamp(2.2rem, 4.5vw, 3.4rem); }
.section--sunk { background: var(--bg-sunk); }
.section--brand { background: var(--brand); color: var(--on-brand); }
.section--brand h2, .section--brand h3 { color: var(--on-brand); }

.stack { display: flex; flex-direction: column; }
.stack-1 { gap: .4rem; } .stack-2 { gap: .8rem; }
.stack-3 { gap: 1.3rem; } .stack-4 { gap: 2rem; } .stack-5 { gap: 3rem; }

.prose { max-width: var(--measure); display: flex; flex-direction: column; gap: 1.1em; }
.prose p { color: var(--ink-2); }
.section--brand .prose p { color: var(--on-brand-2); }

.lede { font-size: var(--step-1); color: var(--ink-2); line-height: 1.5; max-width: 58ch; }
.section--brand .lede { color: var(--on-brand-2); }

/* Section heading block ---------------------------------------------------- */
.eyebrow {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: .6rem;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  flex: none;
}
.head { display: flex; flex-direction: column; gap: .85rem; max-width: 60ch; }

/* On the dark grounds the accent flips to the bright card cyan. */
.hero .eyebrow, .section--brand .eyebrow,
.banner .eyebrow, .cta-band .eyebrow { color: var(--ice-500); }
.hero .eyebrow::before, .section--brand .eyebrow::before,
.banner .eyebrow::before, .cta-band .eyebrow::before { background: var(--ice-500); }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--display);
  font-weight: 600;
  font-size: var(--step-0);
  letter-spacing: -.005em;
  line-height: 1;
  padding: .92em 1.35em;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform .12s ease, background-color .16s ease, border-color .16s ease, color .16s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--accent-fill); color: var(--on-accent); }
.btn--primary:hover { background: var(--ice-400); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Every dark ground on the site, so a ghost button is never dark-on-dark. */
.hero .btn--ghost,
.section--brand .btn--ghost,
.banner .btn--ghost,
.cta-band .btn--ghost,
.callbar .btn--ghost,
.site-footer .btn--ghost {
  color: var(--on-brand);
  border-color: rgba(173, 195, 209, .34);
}
.hero .btn--ghost:hover,
.section--brand .btn--ghost:hover,
.banner .btn--ghost:hover,
.cta-band .btn--ghost:hover,
.callbar .btn--ghost:hover,
.site-footer .btn--ghost:hover {
  border-color: var(--ice-500); color: var(--ice-400);
}

.btn--lg { font-size: var(--step-1); padding: 1em 1.6em; }
.btn-row { display: flex; flex-wrap: wrap; gap: .7rem; }

.btn svg { width: 1.05em; height: 1.05em; flex: none; }

/* ---- Site header -------------------------------------------------------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: var(--brand);
  background: color-mix(in srgb, var(--brand) 94%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid rgba(173, 195, 209, .14);
  color: var(--on-brand);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 68px;
  padding-block: .55rem;
}

.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; margin-right: auto; }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.04rem;
  letter-spacing: -.02em;
  color: var(--on-brand);
}
.brand__sub {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ice-400);
}

.nav { display: flex; align-items: center; gap: .15rem; }
.nav a {
  display: block;
  padding: .55rem .7rem;
  border-radius: var(--r-sm);
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--on-brand-2);
  transition: color .15s ease, background-color .15s ease;
}
.nav a:hover { color: var(--on-brand); background: rgba(173, 195, 209, .09); }
.nav a[aria-current="page"] { color: var(--ice-400); }

.header-cta { display: flex; align-items: center; gap: .5rem; }
.tel-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--accent-fill); color: var(--on-accent);
  font-family: var(--display); font-weight: 700;
  font-size: .96rem; letter-spacing: -.01em;
  padding: .66em 1.05em; border-radius: var(--r-md);
  text-decoration: none; white-space: nowrap;
}
.tel-btn:hover { background: var(--ice-400); }
.tel-btn svg { width: 1em; height: 1em; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(173, 195, 209, .28);
  color: var(--on-brand);
  border-radius: var(--r-sm);
  padding: .5rem .6rem;
  cursor: pointer;
  font: inherit;
}

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; align-items: center; }
  .nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--brand);
    border-bottom: 1px solid rgba(173, 195, 209, .16);
    padding: .5rem 20px 1rem;
    box-shadow: var(--shadow-md);
  }
  .nav a { padding: .8rem .2rem; border-bottom: 1px solid rgba(173, 195, 209, .09); }
  .site-header .wrap { position: relative; flex-wrap: wrap; }
}
@media (max-width: 560px) {
  .brand__sub { display: none; }
  .tel-btn span.tel-label { display: none; }
  .tel-btn { padding: .66em .8em; }
}

/* ---- Hero --------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--brand);
  color: var(--on-brand);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  /* cold-air bloom */
  content: "";
  position: absolute;
  z-index: -2;
  inset: -30% -10% auto auto;
  width: 70ch; height: 70ch;
  max-width: 120%;
  background: radial-gradient(circle at 60% 40%,
    rgba(116, 198, 227, .28) 0%,
    rgba(116, 198, 227, .10) 38%,
    transparent 68%);
  pointer-events: none;
}
.hero::after {
  /* louvre rules, as on a dash vent */
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(173, 195, 209, .055) 0 1px,
    transparent 1px 13px);
  mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 70%, transparent);
  pointer-events: none;
}
.hero h1 { color: var(--on-brand); font-size: var(--step-5); font-weight: 800; }
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 5.6rem);
}
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: 2.2rem; }
}
.hero__copy { display: flex; flex-direction: column; gap: 1.4rem; }
.hero__copy .lede { color: var(--on-brand-2); }

.hero__mode {
  display: inline-flex; flex-wrap: wrap; gap: .5rem;
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .1em; text-transform: uppercase;
}
.hero__mode span {
  border: 1px solid rgba(173, 195, 209, .3);
  border-radius: 999px;
  padding: .36em .8em;
  color: var(--ice-400);
}

/* ---- Hero artwork: the actual van, on the cold-air bloom --------------- */
.hero__art { position: relative; display: flex; align-items: center; justify-content: center; }
.hero__van {
  width: 100%;
  max-width: 100%;
  filter: drop-shadow(0 26px 40px rgba(0, 0, 0, .45));
}
.gauge-chip {
  position: absolute;
  left: 0; bottom: -.4rem;
  background: rgba(7, 23, 32, .88);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(116, 198, 227, .34);
  border-radius: var(--r-md);
  padding: .7rem .95rem;
  display: flex; align-items: center; gap: .7rem;
  box-shadow: 0 14px 30px rgba(0, 0, 0, .4);
}
.gauge-chip__num {
  font-family: var(--display); font-weight: 800;
  font-size: 1.85rem; line-height: 1; letter-spacing: -.04em;
  color: var(--ice-500); font-variant-numeric: tabular-nums;
}
.gauge-chip__txt {
  font-family: var(--mono); font-size: .62rem; line-height: 1.4;
  letter-spacing: .1em; text-transform: uppercase; color: var(--on-brand-2);
}
@media (max-width: 900px) {
  .hero__art { order: -1; }
  .gauge-chip { left: 50%; transform: translateX(-50%); bottom: 0; }
}
@media (max-width: 420px) { .gauge-chip { display: none; } }

/* ---- Itemised list (what a job covers) --------------------------------- */
.tick { display: flex; flex-direction: column; }
.tick li {
  position: relative;
  padding: .72rem 0 .72rem 1.6rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
  font-size: .96rem;
  line-height: 1.5;
}
.tick li::before {         /* a tick, not a chevron: taller than it is wide */
  content: "";
  position: absolute;
  left: .15rem; top: .95rem;
  width: 5px; height: 10px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
}

/* ---- Photography ------------------------------------------------------- */
.photo { margin: 0; display: flex; flex-direction: column; gap: .7rem; }
.photo img {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.photo figcaption {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--ink-3);
  line-height: 1.6;
}
.section--brand .photo figcaption,
.cta-band .photo figcaption { color: var(--on-brand-2); }
.section--brand .photo img,
.cta-band .photo img { border-color: rgba(173, 195, 209, .22); }

/* Photo beside text. Stacks under 820px, image first so it is never orphaned. */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: center;
}
.split--wide { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); }
@media (max-width: 820px) {
  .split, .split--wide { grid-template-columns: 1fr; }
}

/* ---- Brand lockups ----------------------------------------------------- */
.brand__mark { width: auto; height: 38px; }
.lockup { display: flex; flex-direction: column; gap: .9rem; }
.lockup img { height: 74px; width: auto; }

/* ---- Gauge: the instrument panel readout ------------------------------ */
.gauge {
  background: linear-gradient(170deg, rgba(20, 49, 63, .94), rgba(7, 23, 32, .94));
  border: 1px solid rgba(173, 195, 209, .2);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
  display: flex; flex-direction: column; gap: 1.1rem;
}
.gauge__top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--on-brand-2);
  border-bottom: 1px solid rgba(173, 195, 209, .16);
  padding-bottom: .8rem;
}
.gauge__top b { color: var(--ice-400); font-weight: 500; }
.gauge__read { display: flex; align-items: flex-end; gap: .75rem; }
.gauge__num {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(3.2rem, 9vw, 4.6rem);
  line-height: .86;
  letter-spacing: -.045em;
  color: var(--ice-400);
  font-variant-numeric: tabular-nums;
}
.gauge__unit {
  font-family: var(--mono); font-size: .8rem; letter-spacing: .1em;
  color: var(--on-brand-2); padding-bottom: .45rem;
}
.gauge__caption { font-size: .92rem; color: var(--on-brand-2); line-height: 1.5; }
.gauge__rows { display: flex; flex-direction: column; gap: 0; }
.gauge__row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; padding: .62rem 0;
  border-top: 1px solid rgba(173, 195, 209, .13);
  font-family: var(--mono); font-size: .8rem;
}
.gauge__row dt { color: var(--on-brand-2); letter-spacing: .04em; }
.gauge__row dd { margin: 0; color: var(--on-brand); font-variant-numeric: tabular-nums; }

/* ---- Trust strip -------------------------------------------------------- */
.trust {
  background: var(--brand-2);
  color: var(--on-brand);
  border-top: 1px solid rgba(173, 195, 209, .14);
}
.trust__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(173, 195, 209, .14);
}
.trust__cell { background: var(--brand-2); padding: 1.6rem 1.35rem; display: flex; flex-direction: column; gap: .4rem; }
.trust__label {
  font-family: var(--display); font-weight: 700; font-size: 1.02rem;
  color: var(--ice-400); letter-spacing: -.01em;
}
.trust__detail { font-size: .88rem; color: var(--on-brand-2); line-height: 1.52; }
@media (max-width: 860px) { .trust__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 460px) { .trust__grid { grid-template-columns: 1fr; } }

/* ---- Cards / grids ------------------------------------------------------ */
.grid { display: grid; gap: 1.1rem; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  display: flex; flex-direction: column; gap: .7rem;
  text-decoration: none;
  transition: border-color .16s ease, box-shadow .16s ease, transform .16s ease;
}
a.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card h3 { color: var(--ink); }
.card p { color: var(--ink-2); font-size: .96rem; line-height: 1.58; }

/* the cold-side stripe: only on the services we lead with */
.card--lead { position: relative; overflow: hidden; }
.card--lead::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(to right, var(--ice-600), var(--frost-200));
}

.card__more {
  margin-top: auto;
  font-family: var(--display); font-weight: 600; font-size: .92rem;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: .35rem;
}
a.card:hover .card__more { gap: .6rem; }

/* ---- Readout: technical k/v strip -------------------------------------- */
.readout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  font-family: var(--mono);
}
.readout > div {
  background: var(--surface);
  padding: .85rem 1rem;
  display: flex; flex-direction: column; gap: .18rem;
}
.readout dt, .readout .k {
  font-size: .64rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-3);
}
.readout dd, .readout .v {
  margin: 0; font-size: .9rem; color: var(--ink); font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;  /* long email addresses must wrap, not clip */
}

/* ---- Process: a real sequence, so numbered --------------------------- */
.steps { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); counter-reset: s; }
.step { display: flex; flex-direction: column; gap: .5rem; padding-top: 1.1rem; border-top: 2px solid var(--line-strong); counter-increment: s; }
.step::before {
  content: counter(s, decimal-leading-zero);
  font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; color: var(--accent);
}
.step h3 { font-size: var(--step-0); }
.step p { color: var(--ink-2); font-size: .93rem; line-height: 1.55; }

/* ---- Centres ------------------------------------------------------------ */
.centre {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.centre__head {
  background: var(--brand);
  color: var(--on-brand);
  padding: 1.15rem 1.35rem;
  display: flex; align-items: baseline; justify-content: space-between; gap: .8rem;
}
.centre__head h3 { color: var(--on-brand); font-size: var(--step-1); }
.centre__pc { font-family: var(--mono); font-size: .78rem; color: var(--ice-400); }
.centre__body { padding: 1.35rem; display: flex; flex-direction: column; gap: .9rem; flex: 1; }
.centre__body p { color: var(--ink-2); font-size: .95rem; line-height: 1.58; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em;
  background: var(--accent-soft); color: var(--ink);
  border-radius: 999px; padding: .34em .75em;
}
.centre__foot { margin-top: auto; display: flex; flex-wrap: wrap; gap: .5rem; padding-top: .3rem; }

/* ---- Areas -------------------------------------------------------------- */
.area-cols {
  columns: 4 180px;
  column-gap: 1.6rem;
}
.area-cols a {
  display: block;
  padding: .42rem 0;
  font-size: .95rem;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  break-inside: avoid;
}
.area-cols a:hover { color: var(--accent); }
.area-cols a span { font-family: var(--mono); font-size: .72rem; color: var(--ink-3); float: right; }

/* ---- FAQ ---------------------------------------------------------------- */
.faq { display: flex; flex-direction: column; border-top: 1px solid var(--line); max-width: 78ch; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 2.4rem 1.15rem 0;
  position: relative;
  font-family: var(--display);
  font-weight: 600;
  font-size: var(--step-0);
  color: var(--ink);
  line-height: 1.35;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute; right: .55rem; top: 1.55rem;
  width: 10px; height: 10px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform .18s ease;
}
.faq details[open] summary::after { transform: rotate(-135deg); }
.faq summary:hover { color: var(--accent); }
.faq__a { padding: 0 0 1.3rem; color: var(--ink-2); max-width: var(--measure); }

/* ---- Form --------------------------------------------------------------- */
.form { display: grid; gap: .95rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { display: flex; flex-direction: column; gap: .35rem; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-3);
}
.field input, .field select, .field textarea {
  font: inherit;
  font-size: var(--step-0);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  padding: .72em .85em;
  width: 100%;
}
.field textarea { min-height: 7rem; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); }
.field__hint { font-size: .82rem; color: var(--ink-3); }
@media (max-width: 620px) { .form { grid-template-columns: 1fr; } }

/* ---- Callout / CTA band ------------------------------------------------- */
.cta-band {
  background: var(--brand);
  color: var(--on-brand);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute; z-index: -1; inset: auto -5% -60% auto;
  width: 46ch; height: 46ch; max-width: 110%;
  background: radial-gradient(circle, rgba(116,198,227,.22), transparent 66%);
}
.cta-band__inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1.6rem;
  padding-block: clamp(2.4rem, 5vw, 3.6rem);
}
.cta-band h2 { color: var(--on-brand); max-width: 26ch; }
.cta-band p { color: var(--on-brand-2); max-width: 44ch; }

/* ---- Note (honest placeholder, visible to owner only in copy) ---------- */
.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 1rem 1.15rem;
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: .94rem;
  color: var(--ink-2);
  max-width: var(--measure);
}

/* ---- Breadcrumb --------------------------------------------------------- */
.crumbs {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .06em;
  color: var(--ink-3);
  display: flex; flex-wrap: wrap; gap: .45rem; align-items: center;
  padding-top: 1.6rem;
}
.crumbs a { color: var(--ink-3); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }
.crumbs span[aria-hidden] { opacity: .55; }

/* ---- Page banner (interior pages) -------------------------------------- */
.banner {
  background: var(--brand);
  color: var(--on-brand);
  position: relative; overflow: hidden; isolation: isolate;
}
.banner::after {
  content: ""; position: absolute; z-index: -1; inset: 0;
  background-image: repeating-linear-gradient(to bottom,
    rgba(173,195,209,.05) 0 1px, transparent 1px 13px);
  mask-image: linear-gradient(to bottom, transparent, #000 60%);
}
.banner h1 { color: var(--on-brand); }
.banner .lede { color: var(--on-brand-2); }
.banner__inner { padding-block: clamp(2.4rem, 5.5vw, 4rem); display: flex; flex-direction: column; gap: 1.1rem; }
.banner .crumbs { color: var(--on-brand-2); padding-top: 0; }
.banner .crumbs a { color: var(--on-brand-2); }
.banner .crumbs a:hover { color: var(--ice-400); }

/* ---- Footer ------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: #A6C3D1;
  border-top: 1px solid rgba(173,195,209,.14);
  padding-block: clamp(2.6rem, 5vw, 3.6rem) 0;
  font-size: .92rem;
}
.site-footer h4 {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ice-400); font-weight: 500;
  margin-bottom: .9rem;
}
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer a { color: #A6C3D1; text-decoration: none; }
.site-footer a:hover { color: var(--ice-400); }
.site-footer li { padding: .22rem 0; }
.footer-bottom {
  margin-top: 2.6rem;
  border-top: 1px solid rgba(173,195,209,.12);
  padding-block: 1.3rem calc(1.3rem + env(safe-area-inset-bottom, 0px));
  display: flex; flex-wrap: wrap; gap: .8rem 1.5rem;
  justify-content: space-between;
  font-size: .84rem;
  color: #78909C;
}
.footer-areas { font-size: .84rem; line-height: 1.8; color: #78909C; }
.footer-areas a { color: #78909C; }

/* ---- Sticky mobile call bar -------------------------------------------- */
.callbar {
  display: none;
  position: fixed;
  inset: auto 0 0 0;
  z-index: 60;
  background: var(--brand);
  border-top: 1px solid rgba(173,195,209,.2);
  padding: .6rem 16px calc(.6rem + env(safe-area-inset-bottom, 0px));
  gap: .55rem;
  box-shadow: 0 -8px 24px rgba(0,0,0,.25);
}
.callbar .btn { flex: 1; padding: .85em 1em; font-size: .98rem; }
@media (max-width: 700px) {
  .callbar { display: flex; }
  body { padding-bottom: 4.6rem; }
}

/* ---- Utilities ---------------------------------------------------------- */
.mono { font-family: var(--mono); }
.center { text-align: center; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.scroll-x { overflow-x: auto; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover { transform: none; }
  a.card:hover { transform: none; }
}