/* ============================================================
   H2 Deploy — site styles
   Brand: water (teal) + ember (orange) on slate. Trust + urgency.
   ============================================================ */
:root {
  --ink:        #0f1b22;
  --ink-soft:   #33444d;
  --muted:      #5d6f78;
  --line:       #e2e8ec;
  --bg:         #ffffff;
  --bg-alt:     #f5f8fa;
  --bg-deep:    #0f1b22;

  --water:      #0e7490;   /* primary */
  --water-dk:   #0b5366;
  --water-lt:   #e2f3f8;
  --ember:      #ee5a24;   /* CTA / accent */
  --ember-dk:   #cf4514;
  --ember-lt:   #fdeee8;
  --gold:       #f2b705;

  --ok:         #1a7f37;
  --radius:     14px;
  --radius-sm:  9px;
  --shadow:     0 1px 2px rgba(15,27,34,.06), 0 8px 24px rgba(15,27,34,.08);
  --shadow-lg:  0 12px 40px rgba(15,27,34,.16);
  --wrap:       1140px;
  --font:       system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--water-dk); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; color: var(--ink); font-weight: 750; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.center { text-align: center; }
ul.plain { list-style: none; padding: 0; margin: 0; }
ul.plain li { margin: .35rem 0; }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff;
  padding: .6rem 1rem; z-index: 100; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem; justify-content: center;
  font-weight: 650; font-size: 1rem; line-height: 1; cursor: pointer;
  padding: .85rem 1.4rem; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform .08s ease, box-shadow .15s ease, background .15s ease;
  text-decoration: none; white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-cta { background: var(--ember); color: #fff; box-shadow: 0 6px 18px rgba(238,90,36,.35); }
.btn-cta:hover { background: var(--ember-dk); color: #fff; }
.btn-primary { background: var(--water); color: #fff; }
.btn-primary:hover { background: var(--water-dk); color: #fff; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--water); color: var(--water-dk); }
.btn-lg { padding: 1.05rem 1.8rem; font-size: 1.08rem; }
.btn-block { display: flex; width: 100%; }

/* ---- Header / nav ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; font-weight: 800; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-name { font-size: 1.2rem; letter-spacing: -.02em; }
.primary-nav { display: flex; align-items: center; gap: 1.4rem; }
.primary-nav > a { color: var(--ink-soft); font-weight: 550; font-size: .97rem; }
.primary-nav > a:hover { color: var(--water-dk); text-decoration: none; }
.primary-nav > a[aria-current="page"] { color: var(--water-dk); font-weight: 700; }
.nav-cta { color: #fff !important; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: .4rem; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: .2s; }

/* ---- Sections ---- */
section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section-alt { background: var(--bg-alt); }
.section-deep { background: var(--bg-deep); color: #d7e2e8; }
.section-deep h1, .section-deep h2, .section-deep h3 { color: #fff; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; font-weight: 700; color: var(--ember); margin-bottom: .6rem; }
.section-deep .eyebrow { color: var(--gold); }
.lead { font-size: 1.18rem; color: var(--ink-soft); max-width: 60ch; }
.section-head { max-width: 70ch; margin-bottom: 2.5rem; }
.section-head.center { margin-left: auto; margin-right: auto; }

/* ---- Hero ---- */
.hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #0f1b22 0%, #123642 55%, #0e5266 100%); color: #eaf3f6; }
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(70% 55% at 85% 15%, rgba(238,90,36,.32), transparent 60%),
    url("/assets/img/hero.svg") center/cover no-repeat;
  opacity: .9; pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 2.5rem; align-items: center; padding: clamp(3rem,7vw,5.5rem) 0; }
.hero h1 { color: #fff; }
.hero p.lead { color: #cfe2e9; }
.hero-badges { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.4rem 0; }
.badge { display: inline-flex; align-items: center; gap: .4rem; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); color: #eaf3f6; padding: .4rem .8rem; border-radius: 999px; font-size: .85rem; font-weight: 550; }
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; align-items: center; }
.hero-note { color: #9fc0cc; font-size: .88rem; }
.hero-card { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); padding: 1.5rem; backdrop-filter: blur(4px); }

/* ---- Cards / grids ---- */
.grid { display: grid; gap: 1.4rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow);
}
.card h3 { margin-top: .25rem; }
.card .icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; background: var(--water-lt); color: var(--water-dk); margin-bottom: 1rem; }
.card .icon.ember { background: var(--ember-lt); color: var(--ember-dk); }
.step-num { font-size: .85rem; font-weight: 800; color: var(--ember); letter-spacing: .1em; }

/* ---- Comparison ---- */
.compare { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.compare .col { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.4rem; background: #fff; }
.compare .col.feature { border-color: var(--water); box-shadow: var(--shadow); position: relative; }
.compare .col.feature::before { content: "H2 Deploy"; position: absolute; top: -.8rem; left: 1.4rem; background: var(--water); color: #fff; font-size: .72rem; font-weight: 700; padding: .25rem .7rem; border-radius: 999px; letter-spacing: .05em; }
.compare h3 { font-size: 1.05rem; }
.compare ul { list-style: none; padding: 0; margin: .8rem 0 0; }
.compare li { padding: .4rem 0 .4rem 1.6rem; position: relative; font-size: .94rem; border-top: 1px solid var(--bg-alt); }
.compare li::before { position: absolute; left: 0; top: .4rem; }
.compare li.no::before { content: "✕"; color: #c0392b; }
.compare li.yes::before { content: "✓"; color: var(--ok); font-weight: 700; }
.compare li.meh::before { content: "~"; color: var(--muted); }

/* ---- Pricing ---- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; align-items: start; }
.price-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; background: #fff; box-shadow: var(--shadow); }
.price-card.base { border-color: var(--water); }
.price-tag { font-size: 2.6rem; font-weight: 800; color: var(--ink); line-height: 1; }
.price-tag .per { font-size: .95rem; font-weight: 550; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 1rem 0; }
.price-card li { padding: .4rem 0 .4rem 1.6rem; position: relative; }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }

/* calculator */
.calc { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.8rem; }
.calc-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--bg-alt); }
.calc-row:last-of-type { border-bottom: 0; }
.calc-row .opt-name { font-weight: 650; }
.calc-total { display: flex; align-items: baseline; justify-content: space-between; margin-top: 1rem; padding-top: 1.2rem; border-top: 2px solid var(--ink); }
.calc-total .amount { font-size: 2.2rem; font-weight: 800; }
.stepper { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.stepper button { width: 38px; height: 38px; border: 0; background: var(--bg-alt); font-size: 1.3rem; cursor: pointer; color: var(--ink); }
.stepper button:hover { background: var(--water-lt); }
.stepper output { min-width: 2.4ch; text-align: center; font-weight: 700; }
.switch { position: relative; display: inline-block; width: 52px; height: 30px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track { position: absolute; inset: 0; background: var(--line); border-radius: 999px; transition: .2s; }
.switch .track::before { content: ""; position: absolute; height: 24px; width: 24px; left: 3px; top: 3px; background: #fff; border-radius: 50%; transition: .2s; box-shadow: 0 1px 3px rgba(0,0,0,.3); }
.switch input:checked + .track { background: var(--water); }
.switch input:checked + .track::before { transform: translateX(22px); }

/* ---- Equipment ---- */
.equip-card { overflow: hidden; padding: 0; }
.equip-card .ph { aspect-ratio: 4/3; background: var(--bg-alt); display: grid; place-items: center; }
.equip-card .ph img { width: 72%; }
.equip-body { padding: 1.4rem; }
.spec { display: flex; justify-content: space-between; gap: 1rem; font-size: .9rem; padding: .35rem 0; border-top: 1px solid var(--bg-alt); }
.spec dt { color: var(--muted); }
.spec dd { margin: 0; font-weight: 600; text-align: right; }

/* ---- Map ---- */
#service-map { height: 460px; width: 100%; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow); z-index: 0; }
.town-chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.2rem; }
.chip { background: var(--water-lt); color: var(--water-dk); border-radius: 999px; padding: .35rem .85rem; font-size: .9rem; font-weight: 600; }

/* ---- FAQ ---- */
.faq details { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: .8rem; background: #fff; }
.faq summary { cursor: pointer; font-weight: 650; padding: 1.1rem 1.3rem; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.4rem; color: var(--water); }
.faq details[open] summary::after { content: "–"; }
.faq details > div { padding: 0 1.3rem 1.2rem; color: var(--ink-soft); }

/* ---- CTA band ---- */
.cta-band { background: linear-gradient(120deg, var(--water-dk), var(--water)); color: #fff; border-radius: var(--radius); padding: clamp(2rem,5vw,3.5rem); text-align: center; box-shadow: var(--shadow-lg); }
.cta-band h2 { color: #fff; }
.cta-band .btn-cta { box-shadow: 0 8px 24px rgba(0,0,0,.25); }

/* ---- Forms ---- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: clamp(1.4rem, 4vw, 2.4rem); }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-weight: 600; margin-bottom: .35rem; font-size: .95rem; }
.field .req { color: var(--ember); }
.field input, .field textarea, .field select {
  width: 100%; padding: .8rem .9rem; border: 1.5px solid var(--line); border-radius: var(--radius-sm);
  font: inherit; color: var(--ink); background: #fff; transition: border .15s, box-shadow .15s;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--water); box-shadow: 0 0 0 3px var(--water-lt); }
.field .hint { font-size: .82rem; color: var(--muted); margin-top: .3rem; }
.field.error input, .field.error textarea { border-color: var(--ember); }
.field-err { color: var(--ember-dk); font-size: .82rem; margin-top: .3rem; }
.hp { position: absolute; left: -9999px; }       /* honeypot */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.2rem; }

/* alerts */
.alert { padding: 1rem 1.2rem; border-radius: var(--radius-sm); margin-bottom: 1.4rem; border: 1px solid; }
.alert-error { background: var(--ember-lt); border-color: #f3b39e; color: var(--ember-dk); }
.alert-ok { background: #e7f6ec; border-color: #aedcbb; color: var(--ok); }
.alert-info { background: var(--water-lt); border-color: #b6dde8; color: var(--water-dk); }

/* summary panel */
.summary { background: var(--bg-alt); border-radius: var(--radius); padding: 1.4rem; border: 1px solid var(--line); }
.summary h3 { margin-top: 0; }
.summary .line { display: flex; justify-content: space-between; padding: .35rem 0; }
.summary .line.total { border-top: 1px solid var(--line); margin-top: .5rem; padding-top: .7rem; font-weight: 700; }
.design-thumb { width: 100%; border-radius: var(--radius-sm); border: 1px solid var(--line); background: #fff; }

/* ---- Footer ---- */
.site-footer { background: var(--bg-deep); color: #aebfc7; padding: 3rem 0 1.5rem; margin-top: 0; }
.site-footer h4 { color: #fff; font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .8rem; }
.site-footer a { color: #cddbe2; }
.site-footer a:hover { color: #fff; }
.brand--footer .brand-name { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1.4fr; gap: 2rem; padding-bottom: 2rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-grid .muted { color: #8ea3ac; }
.footer-legal { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.2rem; color: #7c919b; }

/* ---- Visualizer ---- */
.viz-layout { display: grid; grid-template-columns: 290px 1fr; gap: 1.2rem; align-items: start; }
.viz-panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.2rem; }
.viz-panel h3 { font-size: 1rem; }
.viz-stage-wrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: .8rem; }
#viz-stage { width: 100%; aspect-ratio: 4 / 3; background: #eef4ec; border-radius: var(--radius-sm); touch-action: none; }
.layout-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: .6rem; }
.layout-thumb { border: 2px solid var(--line); border-radius: var(--radius-sm); padding: .3rem; background: #fff; cursor: pointer; transition: .12s; }
.layout-thumb:hover { border-color: var(--water); }
.layout-thumb.active { border-color: var(--water); box-shadow: 0 0 0 3px var(--water-lt); }
.layout-thumb img { width: 100%; }
.palette { display: grid; gap: .6rem; }
.palette-item { display: flex; align-items: center; gap: .7rem; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .6rem .7rem; cursor: grab; background: #fff; user-select: none; }
.palette-item:hover { border-color: var(--water); background: var(--water-lt); }
.palette-item img { width: 34px; height: 34px; }
.palette-item .pi-name { font-weight: 650; font-size: .92rem; }
.palette-item .pi-sub { font-size: .78rem; color: var(--muted); }
.viz-toolbar { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; justify-content: space-between; margin-bottom: .8rem; }
.viz-counts { display: flex; flex-wrap: wrap; gap: .5rem; }
.count-pill { background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px; padding: .3rem .75rem; font-size: .85rem; font-weight: 600; }
.count-pill b { color: var(--water-dk); }
.viz-est { font-size: .9rem; }
.viz-est .amount { font-weight: 800; font-size: 1.15rem; color: var(--ink); }
.viz-hint { font-size: .82rem; color: var(--muted); margin-top: .6rem; }
.viz-help { background: var(--water-lt); border-radius: var(--radius-sm); padding: .8rem; font-size: .85rem; color: var(--water-dk); margin-top: .8rem; }
.viz-help.warn { background: var(--ember-lt); color: var(--ember-dk); }
.viz-help.warn ul { margin: .3rem 0 0; padding-left: 1.1rem; }

/* small buttons + rows */
.btn-sm { padding: .5rem .85rem; font-size: .9rem; }
.btn-row { display: flex; gap: .5rem; flex-wrap: wrap; }

/* view tabs */
.viz-toolbar .view-tabs { display: flex; gap: .4rem; align-items: center; }
.vt { border: 1px solid var(--line); background: #fff; color: var(--ink-soft); font-weight: 650; font-size: .9rem; padding: .5rem .9rem; border-radius: 999px; cursor: pointer; }
.vt:hover { border-color: var(--water); }
.vt.active { background: var(--water); color: #fff; border-color: var(--water); }

/* segmented control (storeys) */
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.seg button { width: 40px; height: 36px; border: 0; background: #fff; cursor: pointer; font-weight: 700; color: var(--ink-soft); border-right: 1px solid var(--line); }
.seg button:last-child { border-right: 0; }
.seg button.active { background: var(--water); color: #fff; }

/* contextual panel */
.ctx-panel { background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .9rem; margin-top: .8rem; }
.ctx-panel h4 { margin: 0 0 .6rem; font-size: .92rem; }
.ctx-label { display: block; font-size: .82rem; color: var(--muted); margin-bottom: .35rem; }
.ctx-row { display: flex; align-items: center; gap: .5rem; font-size: .92rem; font-weight: 550; }

/* view caption under stage */
.view-caption { font-size: .82rem; color: var(--muted); text-align: center; margin-top: .5rem; min-height: 1.2em; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .grid-3, .grid-4, .compare, .price-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .viz-layout { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 1rem 1.25rem; gap: .4rem;
    display: none; box-shadow: var(--shadow);
  }
  .primary-nav.open { display: flex; }
  .primary-nav > a { padding: .6rem 0; border-bottom: 1px solid var(--bg-alt); }
  .nav-cta { text-align: center; margin-top: .5rem; }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .grid-2 { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
}