/* ============================================================
   TechFriendlyUSA — shared design system
   Concept: the "case file" / audit ledger. This is a business
   built on finding and filing what's wrong, so the visual
   language borrows from field reports and status manifests:
   tab labels, status glyphs, monospace annotations, hairline
   rules — not a generic SaaS gradient page.
   ============================================================ */

:root {
  /* ---- Color ---- */
  --bg: #12151A;
  --surface: #1A1E25;
  --surface-raised: #20252D;
  --border: #2B313B;
  --text: #ECE9E2;
  --text-muted: #9198A6;
  --text-faint: #5C6371;
  --accent-amber: #D9A62E;   /* flagged / exposed */
  --accent-sage: #5B9C82;    /* clear / resolved */
  --accent-rust: #C05B42;    /* weak / attention */

  /* ---- Type ---- */
  --font-display: 'Space Grotesk', 'IBM Plex Sans', sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --radius: 3px;
}

@font-face {
  font-family: 'Space Grotesk';
  src: local('Space Grotesk');
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* faint vertical ledger rules across the whole page, subject-appropriate texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    transparent,
    transparent calc(100% / 6 - 1px),
    rgba(255,255,255,0.02) calc(100% / 6)
  );
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent-sage);
  outline-offset: 3px;
}

img { max-width: 100%; display: block; }

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ---- Header / file tab ---- */
header.site-header {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
header.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.brand .dot { color: var(--accent-sage); }

nav.site-nav {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
nav.site-nav a { color: var(--text-muted); border-bottom: 1px solid transparent; padding-bottom: 3px; }
nav.site-nav a:hover, nav.site-nav a.active { color: var(--text); border-bottom-color: var(--accent-sage); }

.btn-contact {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  border: 1px solid var(--border);
  padding: 9px 16px;
  border-radius: var(--radius);
  color: var(--text);
  white-space: nowrap;
}
.btn-contact:hover { border-color: var(--accent-sage); color: var(--accent-sage); }

/* ---- File tag / eyebrow ---- */
.file-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: var(--radius);
  margin-bottom: 22px;
}
.file-tag .glyph { color: var(--accent-amber); }

/* ---- Hero ---- */
.hero {
  padding: 88px 0 64px;
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  max-width: 15ch;
  margin-bottom: 22px;
}
.hero .lede {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 56ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }

.btn-primary {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  background: var(--accent-sage);
  color: #0E1310;
  padding: 13px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  display: inline-block;
}
.btn-primary:hover { background: #6FB496; }

.btn-secondary {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 13px 4px;
  border-bottom: 1px solid var(--border);
}
.btn-secondary:hover { color: var(--text); border-color: var(--text-muted); }

/* ---- Section scaffolding ---- */
section { padding: 72px 0; border-bottom: 1px solid var(--border); }
section:last-of-type { border-bottom: none; }

.section-head { margin-bottom: 40px; max-width: 62ch; }
.section-head .file-tag { margin-bottom: 16px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-muted); }

/* ---- Status glyphs (ledger check states) ---- */
.status-glyph {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-glyph.clear { background: rgba(91,156,130,0.14); color: var(--accent-sage); }
.status-glyph.flag { background: rgba(217,166,46,0.14); color: var(--accent-amber); }
.status-glyph.weak { background: rgba(192,91,66,0.14); color: var(--accent-rust); }

/* ---- Card grid ---- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 10px;
}
.card p { color: var(--text-muted); font-size: 0.94rem; }

/* ---- Service tiles (home page) ---- */
.service-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.service-tile:hover { border-color: var(--accent-sage); transform: translateY(-2px); }
.service-tile .index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}
.service-tile h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
}
.service-tile p { color: var(--text-muted); font-size: 0.95rem; flex-grow: 1; }
.service-tile .go {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-sage);
  letter-spacing: 0.02em;
}

/* ---- Numbered process ---- */
.process-item {
  display: flex;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
}
.process-item:first-child { border-top: none; }
.process-num {
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.85rem;
  padding-top: 3px;
  width: 30px;
  flex-shrink: 0;
}
.process-item h3 { font-family: var(--font-display); font-size: 1.05rem; margin-bottom: 6px; }
.process-item p { color: var(--text-muted); font-size: 0.94rem; }

/* ---- Ledger scan card (cybersecurity hero prop) ---- */
.scan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  max-width: 480px;
}
.scan-card-head {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
}
.scan-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.scan-row:last-child { border-bottom: none; }
.scan-row .label { flex-grow: 1; }
.scan-row .label .name { font-size: 0.92rem; }
.scan-row .label .detail { font-size: 0.78rem; color: var(--text-faint); }
.scan-row .state {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.scan-row .state.clear { color: var(--accent-sage); }
.scan-row .state.flag { color: var(--accent-amber); }
.scan-row .state.weak { color: var(--accent-rust); }

/* ---- Scope note (in / out of scope lists) ---- */
.scope-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.scope-list { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.scope-list h4 { font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.scope-list.in h4 { color: var(--accent-sage); }
.scope-list.out h4 { color: var(--accent-rust); }
.scope-list ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.scope-list li { font-size: 0.92rem; color: var(--text-muted); padding-left: 18px; position: relative; }
.scope-list.in li::before { content: "+"; position: absolute; left: 0; color: var(--accent-sage); font-family: var(--font-mono); }
.scope-list.out li::before { content: "–"; position: absolute; left: 0; color: var(--accent-rust); font-family: var(--font-mono); }

/* ---- CTA band ---- */
.cta-band {
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-band h2 { font-family: var(--font-display); font-size: 1.35rem; max-width: 34ch; }
.cta-band p { color: var(--text-muted); margin-top: 8px; font-size: 0.95rem; }

/* ---- Footer ---- */
footer.site-footer {
  padding: 32px 0;
}
footer.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
}
footer.site-footer a:hover { color: var(--accent-sage); }

/* ---- Responsive ---- */
@media (max-width: 760px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .scope-grid { grid-template-columns: 1fr; }
  nav.site-nav { display: none; }
  .cta-band { flex-direction: column; align-items: flex-start; }
}

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