:root {
  --bg: #ffffff;
  --bg-alt: #f6f7f9;
  --surface: #ffffff;
  --border: #e6e8ec;
  --text: #14171f;
  --text-soft: #545a66;
  --text-mute: #8a909c;
  --accent: #2f6bff;
  --accent-ink: #1a4fd6;
  --radius: 14px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(20, 23, 31, .04), 0 8px 24px rgba(20, 23, 31, .06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --bg-alt: #14171d;
    --surface: #171b22;
    --border: #262b34;
    --text: #f2f4f8;
    --text-soft: #b3bac6;
    --text-mute: #7d8492;
    --accent: #5b8bff;
    --accent-ink: #7ea3ff;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-ink); text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Skip link for keyboard users */
.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 100;
}
.skip:focus { left: 0; }

/* Header */
header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-ink));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: .95rem;
}
.nav-links { display: flex; gap: 26px; }
.nav-links a { color: var(--text-soft); font-size: .95rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 640px) { .nav-links { display: none; } }

/* Hero */
.hero { padding: 96px 0 72px; background: radial-gradient(1200px 400px at 50% -10%, color-mix(in srgb, var(--accent) 10%, transparent), transparent); }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 18px; }
.hero .lede { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--text-soft); max-width: 640px; margin: 0 0 32px; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 10px; font-weight: 600; font-size: .98rem; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); text-decoration: none; color: #fff; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-alt); text-decoration: none; }

/* Sections */
section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); letter-spacing: -0.015em; margin: 0 0 12px; }
.section-head p { color: var(--text-soft); font-size: 1.08rem; margin: 0; }

/* Cards grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 10px; font-size: 1.18rem; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-soft); }
.card .icon { width: 40px; height: 40px; border-radius: 10px; background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); display: grid; place-items: center; margin-bottom: 16px; font-size: 1.2rem; }

/* About / two-column */
.split { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 780px) { .split { grid-template-columns: 1fr; gap: 28px; } }
.split p { color: var(--text-soft); font-size: 1.06rem; }

/* Contact */
.contact-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.contact-list li { display: flex; flex-direction: column; gap: 2px; }
.contact-list .label { font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--text-mute); }
.contact-list .value { font-size: 1.05rem; color: var(--text); }

/* Footer */
footer { padding: 40px 0; border-top: 1px solid var(--border); color: var(--text-mute); font-size: .9rem; }
.foot-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.foot-row .legal { color: var(--text-mute); }

/* Utility */
.muted { color: var(--text-mute); }