/* ============================================================
   GTMGlobal.AI — styles
   Dark navy, blue accent, Space Grotesk.
   Part of the Quirk Ventures brand family.
   ============================================================ */

:root {
  --bg: #0a0f1c;
  --bg-alt: #0e1428;
  --surface: #141b2e;
  --surface-hi: #1a2440;
  --ink: #eef0f4;
  --ink-soft: #9ba3b5;
  --ink-mute: #4e5568;
  --line: #1e2640;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);

  --font: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --maxw: 60rem;
  --pad: 1.5rem;
  --radius: 0.875rem;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }
img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }
ul, ol { list-style: none; padding: 0; margin: 0; }

/* ---------- layout ---------- */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad);
}

.section { padding-block: 5rem; }
.section-alt { background: var(--bg-alt); }

/* ---------- nav ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  gap: 1rem;
}

.wordmark {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}

.wordmark span {
  color: var(--accent);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.5rem;
  font-family: var(--font);
  font-size: 0.97rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-lg {
  font-size: 1.05rem;
  padding: 1rem 2rem;
}

.btn-nav {
  font-size: 0.88rem;
  padding: 0.6rem 1.2rem;
}

/* ---------- eyebrow ---------- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 1.1rem;
  font-weight: 600;
}

/* ---------- hero ---------- */
.hero {
  padding-block: 6rem 4rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  max-width: 22ch;
  margin-bottom: 1.25rem;
}

.hero-sub {
  color: var(--ink-soft);
  font-size: 1.15rem;
  max-width: 38rem;
  margin-bottom: 2rem;
}

/* ---------- section headings ---------- */
.section-heading {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  margin-bottom: 0.6rem;
}

.section-sub {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

/* ---------- capability cards ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.cap-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.cap-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.cap-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--ink);
  line-height: 1.3;
}

.cap-platform {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-top: 0.2rem;
}

.cap-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cap-list li {
  position: relative;
  padding-left: 1.1em;
  font-size: 0.93rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.cap-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
  top: 0.1em;
}

/* ---------- benefits ---------- */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.benefit {
  border-left: 2px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.5rem;
}

.benefit-icon {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 0.6rem;
}

.benefit h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
}

.benefit p {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- stats ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem 1.5rem;
  margin-bottom: 2rem;
}

.stat-number {
  display: block;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  display: block;
  font-size: 0.88rem;
  color: var(--ink-mute);
  line-height: 1.4;
}

.stats-note {
  color: var(--ink-soft);
  font-size: 0.97rem;
  max-width: 44rem;
  margin: 0;
}

/* ---------- how it works ---------- */
.steps {
  display: grid;
  gap: 1.75rem;
  max-width: 36rem;
}

.step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-glow);
  border: 1px solid var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent);
}

.step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.step p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 0.97rem;
}

/* ---------- who it's for ---------- */
.checklist {
  max-width: 36rem;
  margin-bottom: 2rem;
}

.checklist li {
  position: relative;
  padding-left: 1.75em;
  color: var(--ink-soft);
  line-height: 2;
  font-size: 1.02rem;
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.section-closing {
  color: var(--ink-soft);
  font-size: 1.05rem;
  max-width: 36rem;
  margin-bottom: 1.5rem;
}

/* ---------- footer cta ---------- */
.footer-cta {
  text-align: center;
  padding-block: 5rem;
  border-top: 1px solid var(--line);
}

.cta-heading {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 0.75rem;
}

.cta-sub {
  color: var(--ink-soft);
  font-size: 1.1rem;
  max-width: 30rem;
  margin: 0 auto 2rem;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 1.75rem;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.site-footer p {
  margin: 0;
  color: var(--ink-mute);
  font-size: 0.85rem;
}

.footer-parent {
  font-size: 0.85rem;
  color: var(--ink-mute);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-parent:hover { color: var(--ink-soft); }

/* ---------- responsive ---------- */
@media (min-width: 600px) {
  .cap-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .hero { padding-block: 8rem 5rem; }
  .section { padding-block: 6rem; }

  .stats-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}