/* ==========================================================================
   GUC Tech Inc. — Design tokens
   ========================================================================== */
:root {
  --bg: #F7F7F5;
  --surface: #FFFFFF;
  --ink: #14171A;
  --ink-soft: #4B5157;
  --ink-faint: #83888D;
  --line: #DEDFDA;
  --accent: #2451B8;
  --accent-ink: #17347E;
  --accent-soft: #E7EDFB;
  --status: #0FA968;

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  --maxw: 1080px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Wordmark ---------- */
.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
}
.wordmark .wm-guc {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.wordmark .wm-tech {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 2px 5px;
  transform: translateY(-1px);
}

/* ---------- Header / nav ---------- */
header.site {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 247, 245, 0.88);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
nav.primary { display: flex; align-items: center; gap: 28px; }
nav.primary a {
  text-decoration: none;
  font-size: 0.94rem;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 2px;
}
nav.primary a:hover,
nav.primary a[aria-current="page"] { color: var(--ink); }
nav.primary a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
nav.primary a:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 76px 0 40px;
}
.hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  max-width: 16ch;
}
.hero p.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 0 32px;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-ink); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink-faint); }

/* ---------- Status strip (signature element) ---------- */
.status-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.status-strip .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 36px;
  padding: 16px 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}
.status-strip .item { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.status-strip .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--status);
  box-shadow: 0 0 0 3px rgba(15, 169, 104, 0.15);
  flex: none;
}

/* ---------- Section scaffolding ---------- */
section { padding: 64px 0; }
section.tight { padding: 44px 0; }
section + section { border-top: 1px solid var(--line); }

.section-head { margin-bottom: 36px; max-width: 60ch; }
.section-head .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 10px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--ink-soft); margin: 0; }

/* ---------- Cards / grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 820px) {
  .grid-3 { grid-template-columns: 1fr; }
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 26px;
}
.card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 3px 8px;
  margin-bottom: 14px;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 10px;
}
.card p { color: var(--ink-soft); margin: 0; font-size: 0.95rem; }

/* ---------- Simple two-column ---------- */
.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; }
}
.split .kicker-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.split .kicker-list li {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--ink-soft);
  align-items: baseline;
}
.split .kicker-list .k {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.78rem;
  flex: none;
  width: 2.4em;
}

/* ---------- Page header (non-home pages) ---------- */
.page-header { padding: 56px 0 8px; }
.page-header .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 14px;
}
.page-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}
.page-header p.lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 0;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
}
.contact-card .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 10px;
}
.contact-card .value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0;
}
.contact-card a.value { text-decoration: none; color: var(--accent-ink); }

/* ---------- Prose (privacy policy etc.) ---------- */
.prose { max-width: 72ch; }
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin: 40px 0 12px;
}
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 1.2em; }

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--line);
  padding: 40px 0 48px;
  margin-top: 20px;
}
footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  align-items: center;
}
footer.site .legal {
  font-size: 0.85rem;
  color: var(--ink-faint);
}
footer.site nav { display: flex; gap: 20px; }
footer.site nav a {
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-decoration: none;
}
footer.site nav a:hover { color: var(--ink); }