:root {
  --ink: #000000;
  --ink-soft: #757575;
  --accent: #004aad;
  --accent-dark: #003580;
  --bg: #ffffff;
  --bg-alt: #f9f9f9;
  --line: #dddddd;
  --radius: 10px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

.narrow { max-width: 720px; }
.center { text-align: center; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}

.brand-logo {
  display: block;
  width: 36px;
  height: 36px;
}

.brand-name {
  font-weight: 650;
  letter-spacing: -0.01em;
}

/* Hero */
.hero {
  padding: 110px 0 90px;
  background:
    radial-gradient(1000px 420px at 85% -10%, #f9f9f9 0%, transparent 60%),
    var(--bg);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin-bottom: 32px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.15s ease, color 0.15s ease;
}

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

.btn-lg { padding: 15px 28px; font-size: 1.05rem; }

/* Sections */
.section { padding: 80px 0; }
.section h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  letter-spacing: -0.02em;
  margin-bottom: 36px;
}

.section p + p { margin-top: 16px; }

/* Contact */
.section-contact {
  background: var(--ink);
  color: #fff;
}

.section-contact h2 { color: #fff; }
.section-contact p { color: #bbbbbb; margin-bottom: 28px; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.site-footer a { color: var(--ink-soft); }

/* Small screens */
@media (max-width: 640px) {
  .hero { padding: 70px 0 60px; }
  .section { padding: 56px 0; }
}