@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg:        #F8FAFB;
  --bg-card:   #FFFFFF;
  --bg-subtle: #F1F5F9;
  --ink:       #0F172A;
  --ink-2:     #334155;
  --ink-3:     #64748B;
  --ink-4:     #94A3B8;
  --blue:      #2563EB;
  --blue-light:#DBEAFE;
  --amber:     #F59E0B;
  --amber-light:#FEF3C7;
  --border:    #E2E8F0;
  --border-2:  #CBD5E1;
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius:    10px;
  --shadow:    0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md: 0 4px 16px rgba(15,23,42,0.08), 0 2px 6px rgba(15,23,42,0.05);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── NAV ─────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 5vw;
  height: 68px;
  background: rgba(248,250,251,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--blue);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  gap: 2px;
  list-style: none;
}
.nav-links a {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-3);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 7px;
  transition: color 0.15s, background 0.15s;
  letter-spacing: -0.01em;
}
.nav-links a:hover { color: var(--ink); background: var(--bg-subtle); }
.nav-links a.active { color: var(--blue); background: var(--blue-light); font-weight: 600; }

/* ── PAGE ─────────────────────────────────────────── */
.page {
  padding: 68px 5vw 0;
  max-width: 1160px;
  margin: 0 auto;
}
.page-inner {
  padding-top: 72px;
  padding-bottom: 80px;
}

/* ── SECTION LABELS ───────────────────────────────── */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--blue);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--blue-light);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 1.25rem;
}
.page-title {
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--ink);
  line-height: 1.1;
  margin-bottom: 2.5rem;
}

/* ── CARDS ────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, border-color 0.2s, transform 0.15s;
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-2);
  transform: translateY(-2px);
}

/* ── BUTTONS ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s;
  letter-spacing: -0.01em;
  cursor: pointer;
  border: none;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37,99,235,0.3); }
.btn-ghost { background: transparent; color: var(--ink-2); border: 1.5px solid var(--border-2); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-light); }

/* ── FOOTER ───────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: 1160px;
  margin: 0 auto;
}
footer p {
  font-size: 13px;
  color: var(--ink-4);
  font-family: var(--font-mono);
}

@media (max-width: 768px) {
  .nav-links a { font-size: 13px; padding: 7px 10px; }
  .page-inner { padding-top: 52px; padding-bottom: 52px; }
}
@media (max-width: 560px) {
  .nav-links a { font-size: 12px; padding: 6px 8px; letter-spacing: 0; }
}