/* ===== STEENVAST · 21-A DESIGN SYSTEM · CONCRETE ===== */
:root {
  --c-bg: #dcd6c9;
  --c-bg-warm: #e8e2d3;
  --c-bg-crème: #f2ede0;
  --c-ink: #1a1917;
  --c-ink-soft: #2c2a24;
  --c-muted: #5a554a;
  --c-cement: #8a847a;
  --c-line: rgba(26,25,23,0.12);
  --c-line-strong: rgba(26,25,23,0.28);
  --c-accent: #ff5722;
  --c-accent-dark: #d84315;
  --c-warm-warn: #b45309;
  --c-success: #4a6b3a;
  --f-display: 'Bricolage Grotesque', sans-serif;
  --f-body: 'Inter', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;
  --s-1: 8px; --s-2: 16px; --s-3: 24px; --s-4: 32px; --s-5: 48px; --s-6: 64px; --s-7: 96px; --s-8: 128px;
  --r-sm: 4px; --r-md: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
a { color: inherit; }

/* TYPE */
h1, h2, h3, h4 { font-family: var(--f-display); letter-spacing: -0.02em; }
h1 { font-weight: 800; font-size: clamp(48px, 6.5vw, 88px); line-height: 0.98; letter-spacing: -3px; }
h1 em, h2 em, h3 em { font-style: normal; color: var(--c-accent); }
h2 { font-weight: 700; font-size: clamp(34px, 4.2vw, 56px); line-height: 1.02; letter-spacing: -2px; }
h3 { font-weight: 700; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.15; letter-spacing: -1px; }
h4 { font-weight: 600; font-size: 17px; letter-spacing: -0.4px; }

.eyebrow { font-family: var(--f-mono); font-size: 11px; font-weight: 500; letter-spacing: 2px; text-transform: uppercase; color: var(--c-muted); display: inline-block; }
.eyebrow.accent { color: var(--c-accent); }
.lead { font-size: clamp(17px, 1.4vw, 20px); line-height: 1.55; color: var(--c-ink-soft); max-width: 640px; }
.mono { font-family: var(--f-mono); }

/* BUTTONS */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 24px; border-radius: var(--r-sm); font-family: var(--f-body); font-size: 14px; font-weight: 600; text-decoration: none; transition: all 0.15s ease; letter-spacing: -0.1px; }
.btn-primary { background: var(--c-accent); color: var(--c-bg-crème); }
.btn-primary:hover { background: var(--c-accent-dark); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--c-ink); border: 1px solid var(--c-ink); }
.btn-secondary:hover { background: var(--c-ink); color: var(--c-bg-crème); }
.btn-ghost { background: transparent; color: var(--c-accent); }
.btn-ghost:hover { color: var(--c-accent-dark); }
.btn-sm { padding: 10px 20px; font-size: 13px; }

/* NAV */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(220,214,201,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--c-line); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 32px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
.nav-brand { font-family: var(--f-display); font-weight: 800; font-size: 22px; letter-spacing: -1px; color: var(--c-ink); text-decoration: none; }
.nav-brand span { color: var(--c-accent); }
.nav-links { display: flex; gap: 28px; align-items: center; list-style: none; }
.nav-links a { font-size: 13px; font-weight: 500; color: var(--c-ink); text-decoration: none; }
.nav-links a:hover { color: var(--c-accent); }

/* SECTION */
.section { padding: 96px 0; border-top: 1px solid var(--c-line); }
.section-head { margin-bottom: 48px; max-width: 800px; }
.section-head .eyebrow { margin-bottom: 16px; }
.section-head h2 { margin-bottom: 20px; }

/* HERO */
.hero { padding: 96px 0 64px; }
.hero .eyebrow { margin-bottom: 32px; }
.hero h1 { max-width: 950px; margin-bottom: 32px; }
.hero .lead { margin-bottom: 40px; }
.hero .cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 32px; font-family: var(--f-mono); font-size: 11px; color: var(--c-muted); letter-spacing: 1px; text-transform: uppercase; }

/* TRUST BAR */
.trust-bar { background: var(--c-ink); color: var(--c-bg-crème); padding: 32px 0; }
.trust-inner { max-width: 1200px; margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.trust-item .num { font-family: var(--f-display); font-weight: 700; font-size: 32px; letter-spacing: -1.5px; color: var(--c-accent); margin-bottom: 4px; }
.trust-item .label { font-family: var(--f-mono); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(242,237,224,0.6); }

/* CARD */
.card { background: var(--c-bg-crème); border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 32px; transition: all 0.2s; }
.card:hover { border-color: var(--c-accent); transform: translateY(-2px); }
.card-dark { background: var(--c-ink); color: var(--c-bg-crème); }

/* CALLOUT BAR */
.callout-bar { background: var(--c-ink); color: var(--c-bg-crème); padding: 32px; border-radius: var(--r-sm); display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.callout-bar .callout-text { font-family: var(--f-display); font-weight: 600; font-size: 22px; letter-spacing: -0.8px; max-width: 720px; line-height: 1.3; }
.callout-bar .callout-text em { font-style: normal; color: var(--c-accent); }

/* FAQ */
.faq-item { border-top: 1px solid var(--c-line); padding: 24px 0; cursor: pointer; }
.faq-item summary { list-style: none; display: flex; justify-content: space-between; align-items: baseline; gap: 32px; font-family: var(--f-display); font-weight: 600; font-size: 20px; letter-spacing: -0.7px; color: var(--c-ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--c-accent); font-size: 24px; line-height: 1; transition: transform 0.2s; flex-shrink: 0; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { margin-top: 16px; color: var(--c-ink-soft); font-size: 15px; line-height: 1.65; max-width: 780px; }
.faq-item .faq-answer strong { color: var(--c-accent); font-weight: 600; }

/* BREADCRUMB */
.breadcrumb { padding: 24px 0 0; font-size: 12px; font-family: var(--f-mono); color: var(--c-muted); letter-spacing: 1px; text-transform: uppercase; }
.breadcrumb a { color: var(--c-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--c-accent); }
.breadcrumb .sep { margin: 0 8px; }

/* FOOTER */
footer { background: var(--c-ink); color: var(--c-bg-crème); padding: 96px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 64px; }
.footer-brand-name { font-family: var(--f-display); font-weight: 800; font-size: 32px; letter-spacing: -1.5px; margin-bottom: 12px; }
.footer-brand-name span { color: var(--c-accent); }
.footer-tagline { font-family: var(--f-display); font-size: 18px; color: rgba(242,237,224,0.7); max-width: 320px; letter-spacing: -0.5px; line-height: 1.4; margin-bottom: 24px; }
.footer-col h5 { font-family: var(--f-mono); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--c-accent); margin-bottom: 16px; font-weight: 500; }
.footer-col ul { list-style: none; }
.footer-col li { padding: 6px 0; }
.footer-col a { color: rgba(242,237,224,0.75); text-decoration: none; font-size: 14px; }
.footer-col a:hover { color: var(--c-accent); }
.footer-bottom { padding-top: 32px; border-top: 1px solid rgba(242,237,224,0.15); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-family: var(--f-mono); font-size: 11px; letter-spacing: 1px; color: rgba(242,237,224,0.5); text-transform: uppercase; }

/* SKETCH BANNER */
.sketch-banner { position: fixed; top: 16px; left: 16px; z-index: 200; background: var(--c-accent); color: var(--c-bg-crème); padding: 6px 12px; border-radius: 20px; font-family: var(--f-mono); font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; font-weight: 500; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.sketch-banner a { color: var(--c-bg-crème); text-decoration: underline; margin-left: 8px; font-weight: 400; }

@media (max-width: 900px) {
  .nav-links li:nth-child(-n+4) { display: none; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}