@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Sans:ital,wght@0,400;0,500;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --bg0: #F4F7FC;
  --bg1: #FFFFFF;
  --bg2: #EBF0F9;
  --blue: #0284C7;
  --blue-dark: #0369A1;
  --violet: #6366F1;
  --green: #059669;
  --t1: #0F172A;
  --t2: #475569;
  --t3: #94A3B8;
  --border: rgba(15, 23, 42, 0.08);
  --border-blue: rgba(2, 132, 199, 0.22);
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md: 0 4px 12px rgba(2,132,199,0.08);
  --radius: 8px;
  --radius-lg: 10px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--t1);
  background: var(--bg0);
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; }

a { color: inherit; text-decoration: none; }

.section-inner { max-width: 900px; margin: 0 auto; padding: 0 2rem; }

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--blue);
  letter-spacing: 0.15em;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.4rem;
  color: var(--t1);
}

.section-sub {
  color: var(--t2);
  margin-bottom: 2.5rem;
  max-width: 500px;
}

.divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 2.5rem;
}

.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--t2);
  background: var(--bg0);
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  padding: 11px 26px;
  border-radius: 8px;
  border: none;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
  display: inline-block;
}
.btn-primary:hover { opacity: 0.88; }

.btn-outline {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--t1);
  padding: 11px 26px;
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
  display: inline-block;
}
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }

@media (max-width: 768px) {
  .section-inner { padding: 0 1.25rem; }
}