/* ==========================================================================
   TSC — Technical Services for Construction
   Design tokens + component styles
   ========================================================================== */

:root {
  --tsc-teal: #0E93AD;
  --tsc-teal-ink: #0A6C81;
  --tsc-navy: #0A1C2E;
  --tsc-clash: #E4662E;

  --paper: #EEF3F8;
  --surface: #FFFFFF;
  --ink: #0E2033;
  --ink-2: #52657A;
  --ink-3: #7C8DA0;
  --line: #C6D3DF;
  --accent: #0E93AD;
  --accent-ink: #0A6C81;
  --accent-wash: #E1F1F4;
  --grid-line: #C9D6E1;

  --band: #0A1C2E;
  --band-ink: #E8EFF5;
  --band-ink-2: #93A9BD;
  --band-line: #23384C;
  --band-surface: #102336;

  --font-sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Space Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --text-2xs: 0.7rem;
  --text-xs: 0.79rem;
  --text-sm: 0.889rem;
  --text-md: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.266rem;
  --text-2xl: 1.424rem;
  --text-3xl: 1.602rem;
  --text-4xl: 1.802rem;
  --text-6xl: 2.281rem;
  --size-display: clamp(1.9rem, 1.2rem + 3vw, 3.5rem);
  --size-h2: clamp(1.5rem, 1.1rem + 1.8vw, 2.281rem);

  --space-4: 16px;
  --space-5: 24px;
  --container: 1160px;

  --radius: 4px;
  --grid-size: 44px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: 1.6;
  letter-spacing: -0.02em;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,28,46,0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--band-line);
}
.site-header .wrap { display: flex; align-items: center; gap: 32px; height: 72px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; flex-shrink: 0; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 3px;
  background: linear-gradient(100deg, #7A4A1E, #C07722, #E8C489);
  display: grid; place-items: center; color: #0A1C2E; font-weight: 800; font-size: 13px; font-family: var(--font-mono);
}
.brand-text { font-family: var(--font-mono); font-size: 10px; line-height: 1.4; letter-spacing: 0.12em; text-transform: uppercase; color: var(--band-ink-2); border-left: 1px solid var(--band-line); padding-left: 14px; }
.brand-text strong { display: block; color: var(--band-ink); font-weight: 600; }

.main-nav { display: none; align-items: center; gap: 26px; margin-left: auto; font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.14em; text-transform: uppercase; }
.main-nav a { color: var(--band-ink-2); padding: 24px 0; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--band-ink); text-decoration: none; }
.main-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 0 var(--accent); }

.header-cta { display: none; flex-shrink: 0; }
.menu-toggle {
  margin-left: auto; background: transparent; border: 1px solid var(--band-line); border-radius: 4px;
  color: var(--band-ink); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  padding: 8px 12px; cursor: pointer;
}
@media (min-width: 1020px) {
  .main-nav { display: flex; }
  .header-cta { display: inline-flex; }
  .menu-toggle { display: none; }
}

.mobile-panel { display: none; background: var(--band); border-top: 1px solid var(--band-line); padding: 8px 24px 28px; }
.mobile-panel.is-open { display: block; }
.mobile-panel a { display: block; padding: 16px 0; border-bottom: 1px solid var(--band-line); font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.16em; text-transform: uppercase; color: var(--band-ink); }

/* ---------- buttons / tags ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 4px; border: 1px solid transparent;
  font-family: var(--font-sans); font-weight: 600; font-size: 15px; letter-spacing: -0.01em;
  padding: 12px 20px; cursor: pointer; text-decoration: none !important;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); }
.btn-secondary { background: transparent; border-color: var(--band-line); color: var(--band-ink); }
.btn-secondary:hover { border-color: var(--band-ink-2); }

.tag {
  display: inline-block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink-2);
}
.tag--band { border-color: var(--band-line); color: var(--band-ink-2); }

.mono-label { display: flex; align-items: flex-start; gap: 14px; font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }
.mono-label::before { content: ""; width: 28px; height: 1px; background: var(--accent); flex-shrink: 0; margin-top: 7px; }
.mono-label--band { color: var(--band-ink-2); }

/* ---------- hero / sections ---------- */
.hero {
  position: relative; overflow: hidden; background: var(--band); color: var(--band-ink);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size); opacity: 0.08;
  mask-image: radial-gradient(75% 75% at 20% 40%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(75% 75% at 20% 40%, #000 0%, transparent 78%);
}
.hero .wrap { position: relative; padding: 88px 24px 80px; }
.hero h1 { max-width: 20ch; font-size: var(--size-display); font-weight: 700; letter-spacing: -0.025em; line-height: 1.06; color: var(--band-ink); }
.hero p.lede { margin-top: 24px; max-width: 62ch; font-size: 17px; line-height: 1.6; color: var(--band-ink-2); }
.hero .cta-row { margin-top: 34px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero .cta-row a.text-link { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--band-ink); border-bottom: 1px solid var(--band-line); padding-bottom: 3px; }

section.section { background: var(--paper); }
section.section.band { background: var(--band); color: var(--band-ink); }
section.section .wrap { padding: 88px 24px; }
.section h2 { max-width: 30ch; font-size: var(--size-h2); letter-spacing: -0.02em; line-height: 1.14; color: var(--ink); }
.band .section-title, .band h2 { color: var(--band-ink); }
.section p.intro { margin-top: 22px; max-width: 65ch; font-size: 17px; line-height: 1.6; color: var(--ink-2); }
.band p.intro { color: var(--band-ink-2); }

/* ---------- stat grid ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
.stat-grid .stat { padding: 32px 24px; background: var(--paper); }
.stat .num { font-size: var(--text-6xl); font-weight: 700; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; color: var(--ink); }
.stat .label { margin-top: 14px; font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink); }
.stat .desc { margin-top: 8px; font-size: 14px; line-height: 1.5; color: var(--ink-2); }
@media (min-width: 700px) { .stat-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (min-width: 1020px) { .stat-grid { grid-template-columns: repeat(5, minmax(0,1fr)); } }

/* ---------- card grid ---------- */
.card-grid { margin-top: 44px; display: grid; gap: 24px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .card-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 32px; display: flex; flex-direction: column; }
.card h3 { margin-top: 18px; font-size: 21px; letter-spacing: -0.015em; line-height: 1.25; color: var(--ink); }
.card p { margin-top: 16px; font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.card .eyebrow { font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }
.card .tags { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; gap: 8px; flex-wrap: wrap; }
.card .more { margin-top: 22px; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; }

/* ---------- list rows (comparison / deliverables) ---------- */
.row-list { margin-top: 22px; border-top: 1px solid var(--line); }
.row { display: grid; grid-template-columns: 26px minmax(0,1fr); gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.row .mark { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); line-height: 1.8; }
.row p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--ink-2); }
.row p strong { color: var(--ink); }
.band .row-list, .band .row { border-color: var(--band-line); }
.band .row p { color: var(--band-ink-2); }

/* ---------- meta / data table ---------- */
.meta-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 4px; overflow: hidden; margin-top: 34px; }
.meta-grid .cell { background: var(--surface); padding: 18px 20px; }
.meta-grid .cell .k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-3); }
.meta-grid .cell .v { margin-top: 8px; font-size: 14px; line-height: 1.5; color: var(--ink); }
@media (min-width: 720px) { .meta-grid { grid-template-columns: repeat(3, minmax(0,1fr)); } }

table.spec { width: 100%; border-collapse: collapse; margin-top: 24px; border: 1px solid var(--line); border-radius: 4px; overflow: hidden; }
table.spec th, table.spec td { text-align: left; padding: 16px 18px; font-size: 15px; border-bottom: 1px solid var(--line); }
table.spec th { width: 32%; background: var(--paper); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-2); font-weight: 400; }
table.spec tr:last-child th, table.spec tr:last-child td { border-bottom: 0; }

/* ---------- quote ---------- */
blockquote.pull { margin: 0; padding: 0 0 0 22px; border-left: 3px solid var(--accent); max-width: 62ch; }
blockquote.pull p { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.4; color: var(--band-ink); }

/* ---------- image placeholder (no photography supplied yet) ---------- */
.media-slot {
  aspect-ratio: 16/9; border-radius: 4px; border: 1px solid var(--line); background: var(--band);
  display: grid; place-items: center; color: var(--band-ink-2); font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.08em; text-align: center; padding: 24px; overflow: hidden; position: relative;
}
.media-slot::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 30px 30px; opacity: 0.15;
}
.media-slot span { position: relative; max-width: 26ch; }
.media-slot.portrait { aspect-ratio: 4/5; }

/* ---------- form ---------- */
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 32px; }
.field { display: grid; gap: 8px; margin-bottom: 20px; }
.field label { font-family: var(--font-mono); font-size: var(--text-2xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-2); }
.field input, .field select, .field textarea {
  background: var(--paper); border: 1px solid var(--line); border-radius: 4px; color: var(--ink);
  font-size: 15px; font-family: var(--font-sans); padding: 12px 14px;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); }
.form-grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .form-grid.two { grid-template-columns: 1fr 1fr; } }

/* ---------- footer ---------- */
.site-footer { background: var(--band); color: var(--band-ink); border-top: 1px solid var(--band-line); }
.site-footer .wrap { padding: 72px 24px 32px; }
.footer-grid { display: grid; gap: 40px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1020px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }
.footer-grid h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--band-ink-2); font-weight: 400; }
.footer-grid ul { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; font-size: 14px; }
.footer-grid a { color: var(--band-ink); }
.footer-tags { margin-top: 18px; display: flex; gap: 8px; flex-wrap: wrap; }
.footer-bottom { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--band-line); display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--band-ink-2); }
.footer-legal { margin-top: 24px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--band-ink-2); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--accent); color: #fff; padding: 12px 18px;
  z-index: 100; border-radius: 0 0 4px 0; font-family: var(--font-mono); font-size: 12px; text-decoration: none;
}
.skip-link:focus { left: 0; }

@media (min-width: 860px) { .two-col-56 { grid-template-columns: 1fr 1.3fr !important; } }
@media (min-width: 780px) { .leadership-grid { grid-template-columns: 280px 1fr !important; align-items: start; } }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }