/* H3R.Tech site. Layout: cream page, one slate LCARS-framed hero band per page, quiet white cards for offers. */
:root {
  --slate: #2C3145;
  --ink: #1F2333;
  --muted: #4A5065;
  --line: #C9CDD6;
  --tint: #FAF7F0;
  --paper: #FFFFFF;
  --teal: #17706F;
  --teal-hi: #1F8B8B;
  --mint: #DDF0EF;
  --amber: #E89611;
  --amber-soft: #FBD38A;
  --display: 'Space Grotesk', 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --mark: 'Antonio', 'Arial Narrow', sans-serif;
  --body: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --wrap: 1120px;
  --r: 14px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--tint);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-underline-offset: 3px; }
a:hover { color: var(--slate); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { margin: 0; text-wrap: balance; color: var(--slate); }
h1 { font-family: var(--display); font-weight: 700; font-size: clamp(36px, 5.4vw, 62px); line-height: 1.05; letter-spacing: -1.2px; }
h2 { font-family: var(--display); font-weight: 700; font-size: clamp(28px, 3.6vw, 40px); line-height: 1.12; letter-spacing: -0.6px; }
h3 { font-family: var(--body); font-weight: 700; font-size: 20px; line-height: 1.35; }
p { margin: 0; text-wrap: pretty; }

.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 48px);
  margin: 0 auto;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px));
}
.measure { max-width: 66ch; }
.stack { display: flex; flex-direction: column; gap: 18px; }
.stack-lg { display: flex; flex-direction: column; gap: 32px; }

.eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--teal);
}
.lede { font-size: clamp(18px, 2vw, 21px); line-height: 1.55; color: var(--ink); }
.small { font-size: 14px; color: var(--muted); }

/* Buttons */
.btns { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 999px;
  font-family: var(--body); font-weight: 700; font-size: 16px; letter-spacing: 0.3px;
  text-decoration: none; cursor: pointer; border: 2px solid transparent;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--teal); color: var(--paper); }
.btn-primary:hover { background: var(--slate); color: var(--paper); }
.btn-amber { background: var(--amber); color: var(--slate); }
.btn-amber:hover { background: var(--amber-soft); color: var(--slate); }
.btn-ghost { border-color: var(--slate); color: var(--slate); background: transparent; }
.btn-ghost:hover { background: var(--slate); color: var(--paper); }
.on-dark .btn-ghost { border-color: var(--paper); color: var(--paper); }
.on-dark .btn-ghost:hover { background: var(--paper); color: var(--slate); }

/* Header */
.site-header { background: var(--tint); border-bottom: 1px solid var(--line); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--tint); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 72px; }
.brand { font-family: var(--display); font-weight: 800; font-size: 21px; letter-spacing: 3px; color: var(--slate); text-decoration: none; }
.brand span { color: var(--teal); }
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links > li { position: relative; }
.nav-links a, .nav-links button.sub-toggle {
  display: block; padding: 10px 14px; border-radius: 999px; font: 600 15px/1.2 var(--body);
  color: var(--slate); text-decoration: none; background: none; border: 0; cursor: pointer;
}
.nav-links a:hover, .nav-links button.sub-toggle:hover { background: var(--paper); }
.nav-links a[aria-current="page"] { color: var(--teal); }
.nav-links .btn { margin-left: 8px; padding: 10px 18px; min-height: 42px; color: var(--paper); }
.nav-links .btn:hover { background: var(--slate); color: var(--paper); }
.sub { position: absolute; top: calc(100% + 6px); left: 0; min-width: 240px; list-style: none; margin: 0; padding: 8px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 12px 30px rgba(44,49,69,.12); display: none; }
.has-sub:hover .sub, .has-sub:focus-within .sub, .has-sub.open .sub { display: block; }
.sub a { border-radius: 8px; }
.sub a:hover { background: var(--tint); }
.menu-btn { display: none; min-height: 44px; padding: 8px 16px; border-radius: 999px; border: 2px solid var(--slate);
  background: none; font: 700 15px/1 var(--body); color: var(--slate); cursor: pointer; }

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; align-items: center; }
  .nav { flex-wrap: wrap; }
  .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 2px; padding: 0 0 16px; }
  .nav.open .nav-links { display: flex; }
  .sub { position: static; display: block; box-shadow: none; border: 0; padding: 0 0 0 14px; background: none; min-width: 0; }
  .sub-toggle { display: none !important; }
  .nav-links .btn { margin: 8px 0 0; }
}

/* LCARS hero band: amber elbow frame, the one bold device on each page */
.hero { background: var(--slate); color: var(--paper); }
.hero .wrap { padding-block: 56px 64px; }
.lcars { display: grid; grid-template-columns: 120px minmax(0, 1fr); grid-template-rows: auto 1fr; }
.lcars-elbow { grid-column: 1; grid-row: 1; background: var(--amber); border-top-left-radius: 56px; min-height: 64px; position: relative; }
.lcars-elbow::after { content: ""; position: absolute; right: 0; bottom: 0; width: 44px; height: 28px; background: var(--slate); border-top-left-radius: 28px; }
.lcars-top { grid-column: 2; grid-row: 1; display: flex; gap: 6px; align-items: flex-start; }
.lcars-top i { display: block; height: 36px; border-radius: 0 0 0 0; }
.lcars-top i:nth-child(1) { flex: 5; background: var(--amber); }
.lcars-top i:nth-child(2) { flex: 1; background: var(--teal-hi); }
.lcars-top i:nth-child(3) { flex: 2; background: var(--amber-soft); border-radius: 0 18px 18px 0; }
.lcars-rail { grid-column: 1; grid-row: 2; display: flex; flex-direction: column; gap: 6px; width: 76px; padding-top: 6px; }
.lcars-rail i { display: block; background: var(--teal-hi); border-radius: 0; }
.lcars-rail i:nth-child(1) { height: 60px; background: var(--amber); }
.lcars-rail i:nth-child(2) { height: 110px; }
.lcars-rail i:nth-child(3) { flex: 1; min-height: 40px; background: #4A5168; }
.lcars-rail span { display: block; font: 700 11px/1 var(--display); letter-spacing: 1px; color: var(--slate); padding: 8px 6px 0; text-align: right; }
.lcars-body { grid-column: 2; grid-row: 2; padding: 40px 0 8px 32px; display: flex; flex-direction: column; gap: 24px; min-width: 0; }
.hero h1 { color: var(--paper); }
.hero .eyebrow { color: var(--amber-soft); }
.hero .lede { color: #E6E8EE; max-width: 60ch; }

@media (max-width: 700px) {
  .lcars { grid-template-columns: 1fr; }
  .lcars-elbow { display: none; }
  .lcars-top { grid-column: 1; }
  .lcars-top i { height: 14px; }
  .lcars-top i:nth-child(1) { border-top-left-radius: 14px; border-bottom-left-radius: 14px; }
  .lcars-rail { display: none; }
  .lcars-body { grid-column: 1; padding: 28px 0 0; }
}

/* Sections */
.section { padding-block: 80px; }
.section + .section { padding-top: 0; }
.section.band { background: var(--paper); border-block: 1px solid var(--line); padding-block: 80px; }
.section.band + .section { padding-top: 80px; }
.section-head { display: flex; flex-direction: column; gap: 12px; margin-bottom: 36px; max-width: 760px; }
.section-head p { color: var(--muted); font-size: 18px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 56px; align-items: start; }
@media (max-width: 960px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .split { grid-template-columns: 1fr; gap: 36px; } }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .grid-4 { grid-template-columns: 1fr; } }

.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 28px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.band .card { background: var(--tint); }
.card h3 { color: var(--slate); }
.card p { color: var(--ink); font-size: 16px; }
.card .more { margin-top: auto; padding-top: 8px; font-weight: 700; text-decoration: none; }
.card .more::after { content: " \2192"; }
a.card { text-decoration: none; color: inherit; transition: border-color .15s ease, transform .15s ease; }
a.card:hover { border-color: var(--teal); transform: translateY(-2px); }
.card-tag { font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); }

/* Stats */
.stat { border-top: 4px solid var(--amber); padding-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.stat b { font-family: var(--display); font-weight: 700; font-size: clamp(30px, 3.6vw, 40px); line-height: 1.1; color: var(--slate); font-variant-numeric: tabular-nums; }
.stat p { font-size: 16px; }
.sources { margin-top: 28px; font-size: 13px; color: var(--muted); }

/* Lists */
.checks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.checks li { position: relative; padding-left: 30px; }
.checks li::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 14px; height: 14px; border-radius: 4px; background: var(--teal); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; counter-reset: step; }
.steps > li { counter-increment: step; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; align-items: start;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 22px 24px; }
.band .steps > li { background: var(--tint); }
.steps > li::before { content: counter(step); font: 700 24px/56px var(--display); text-align: center; width: 56px; height: 56px; border-radius: 50%;
  background: var(--slate); color: var(--amber-soft); }
.steps h3 { margin-bottom: 6px; }
.steps p { font-size: 16px; }
.steps.compact > li { padding: 16px 20px; grid-template-columns: 40px minmax(0, 1fr); }
.steps.compact > li::before { width: 40px; height: 40px; line-height: 40px; font-size: 18px; }

/* Pull quote */
.pull { background: var(--teal); color: var(--paper); border-radius: var(--r); padding: 36px 40px; display: flex; gap: 18px; align-items: flex-start; }
.pull::before { content: "\201C"; font: 800 64px/0.8 var(--display); color: var(--amber); flex-shrink: 0; }
.pull p { font-weight: 700; font-size: clamp(22px, 2.6vw, 28px); line-height: 1.3; }
.pull p::after { content: "\201D"; color: var(--amber); }

/* Matrix */
.matrix { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 24px; min-width: 0; }
.mx-head, .mx-grid { display: grid; grid-template-columns: 44px minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
.mx-head { margin-bottom: 10px; }
.mx-axis { display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center; }
.mx-axis small { font-size: 11px; font-weight: 700; letter-spacing: 1.5px; color: var(--muted); }
.mx-axis b { font: 700 17px/1.1 var(--display); color: var(--slate); }
.mx-row-label { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px; }
.mx-row-label small { writing-mode: vertical-rl; transform: rotate(180deg); font-size: 11px; font-weight: 700; letter-spacing: 1.5px; color: var(--muted); }
.mx-row-label b { font: 700 15px/1 var(--display); color: var(--slate); }
.quad { border: 2px solid var(--slate); border-radius: 12px; padding: 18px; display: flex; flex-direction: column; gap: 8px; background: var(--paper); min-width: 0; }
.quad h3 { font: 700 20px/1.2 var(--display); }
.quad p { font-size: 15px; line-height: 1.45; }
.quad .ex { color: var(--muted); font-size: 14px; }
.quad .act { margin-top: auto; align-self: flex-start; border: 2px solid var(--slate); border-radius: 999px; padding: 4px 12px; font-size: 12px; font-weight: 700; letter-spacing: 1px; }
.quad.lb { background: var(--teal); border-color: var(--teal); color: var(--paper); }
.quad.lb h3 { color: var(--paper); }
.quad.lb .ex { color: var(--mint); }
.quad.lb .act { background: var(--amber); border-color: var(--amber); color: var(--slate); }
.mx-note { margin-top: 14px; font-size: 14px; color: var(--muted); }
@media (max-width: 560px) {
  .matrix { padding: 16px; }
  .mx-head, .mx-grid { grid-template-columns: 1fr; }
  .mx-head, .mx-row-label { display: none; }
  .quad::before { content: attr(data-pos); font-size: 11px; font-weight: 700; letter-spacing: 1.2px; color: var(--muted); }
  .quad.lb::before { color: var(--mint); }
}

/* Tiers */
.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 900px) { .tiers { grid-template-columns: 1fr; } }
.tier { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 24px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.band .tier { background: var(--tint); }
.tier h3 { font: 700 19px/1.25 var(--display); }
.tier dl { margin: 0; display: grid; gap: 10px; }
.tier dt { font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--teal); }
.tier dd { margin: 0; font-size: 15.5px; }

/* Formula and table */
.formula { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 700px) { .formula { grid-template-columns: 1fr; } }
.formula div { border-radius: var(--r); padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.formula .auto { background: var(--paper); border: 1px solid var(--line); }
.formula .del { background: var(--slate); color: var(--paper); }
.formula small { font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; }
.formula .del small { color: var(--amber-soft); }
.formula .auto small { color: var(--teal); }
.formula b { font: 700 clamp(22px, 2.8vw, 30px)/1.2 var(--display); font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); }
table { border-collapse: collapse; width: 100%; min-width: 620px; font-size: 15px; line-height: 1.45; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--slate); color: var(--paper); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { font-weight: 600; color: var(--slate); }

/* Callout and CTA */
.cta { background: var(--slate); color: var(--paper); border-radius: 20px; padding: 48px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cta h2 { color: var(--paper); }
.cta p { color: #E6E8EE; margin-top: 8px; }
@media (max-width: 600px) { .cta { padding: 32px 24px; } .pull { padding: 28px 24px; } }
.note { border-left: 4px solid var(--amber); padding: 4px 0 4px 18px; color: var(--muted); font-size: 15px; }

/* Forms */
form.f { display: grid; gap: 16px; }
.f .row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 600px) { .f .row { grid-template-columns: 1fr; } }
.f label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 15px; color: var(--slate); }
.f label span.opt { font-weight: 400; color: var(--muted); }
.f input, .f select, .f textarea {
  font: 400 16px/1.4 var(--body); color: var(--ink); background: var(--paper);
  border: 1.5px solid #9AA0AE; border-radius: 10px; padding: 12px 14px; width: 100%; min-width: 0;
}
.f textarea { min-height: 130px; resize: vertical; }
.f input:focus, .f select:focus, .f textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(23,112,111,.2); }
.f .hp { position: absolute; left: -9999px; }
.f-status { font-size: 15px; font-weight: 600; min-height: 1.4em; }
.f-status.ok { color: var(--teal); }
.f-status.err { color: #A33B1F; }
.inline-form { display: flex; flex-wrap: wrap; gap: 12px; }
.inline-form input { flex: 1 1 240px; }

/* Footer */
.site-footer { background: var(--slate); color: #C9CDD6; margin-top: 80px; }
.site-footer .wrap { padding-block: 48px; display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 32px; }
@media (max-width: 760px) { .site-footer .wrap { grid-template-columns: 1fr; } }
.site-footer .brand { color: var(--paper); }
.site-footer a { color: var(--paper); text-decoration: none; }
.site-footer a:hover { color: var(--amber-soft); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.site-footer h4 { margin: 0 0 12px; font-size: 12px; letter-spacing: 2px; color: var(--amber-soft); }
.legal { border-top: 1px solid #454B61; }
.legal .wrap { padding-block: 18px; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; grid-template-columns: none; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }
.nav-links a.btn { background: var(--teal); color: var(--paper); }
.nav-links a.btn:hover { background: var(--slate); color: var(--paper); }
.about-grid { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 56px; align-items: center; }
.about-photo { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: 50% 25%; border-radius: var(--r); }
@media (max-width: 760px) { .about-grid { grid-template-columns: 1fr; gap: 28px; } .about-photo { max-width: 320px; } }

.brand, .lcars-rail span { font-family: var(--mark); }
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 40px; height: 40px; border-radius: 50%; }
.brand > span { color: var(--slate); }
.brand > span > span { color: var(--teal); }

/* H3R.Tech compact lockup (Concept C) */
.lockup { display: inline-flex; align-items: center; text-decoration: none; }
.lockup i { display: block; height: 34px; }
.lockup .lk-cap { width: 22px; background: var(--amber); border-radius: 17px 0 0 17px; margin-right: 4px; }
.lockup .lk-bar { width: 6px; background: var(--teal); }
.lockup span { font-family: var(--mark); font-weight: 700; font-size: 32px; line-height: 1; letter-spacing: 1.5px; color: var(--slate); padding-left: 11px; }
.lockup:hover span { color: var(--teal); }
.lockup-dark .lk-bar { background: #7FD3D1; }
.lockup-dark span { color: #FBD38A; }
.lockup-dark:hover span { color: #FFFFFF; }
.lk-tag { font-family: var(--mark); font-weight: 600; font-size: 14px; letter-spacing: 2.5px; color: #7FD3D1; padding-left: 43px; }
.lcars-rail span { font-family: var(--mark); }

.logo { display: inline-flex; line-height: 0; }
.logo img { height: auto; }
@media (max-width: 420px) { .site-header .logo img { width: 116px; } }