:root {
  --black: #0a0a0a;
  --ink: #141414;
  --white: #ffffff;
  --silver: #c4c8cc;
  --silver-light: #e8eaec;
  --silver-dark: #6f747a;
  --line: #d6d9dc;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(1080px, 92%); margin-inline: auto; }

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--white); color: var(--black); padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

a:focus-visible, .btn:focus-visible {
  outline: 3px solid var(--silver-dark);
  outline-offset: 3px;
}

/* Header (light) */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; justify-content: space-between; padding: .9rem 0; }
.brand { display: inline-flex; align-items: center; gap: .6rem; color: var(--black); text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 4px;
  background: #000; color: var(--white);
}
.brand-name { font-weight: 800; letter-spacing: .18em; font-size: .95rem; }
nav { display: flex; align-items: center; gap: 1.4rem; }
nav a { color: #3d4247; text-decoration: none; font-size: .95rem; }
nav a:hover { color: var(--black); }
.nav-cta {
  color: var(--white); background: var(--black);
  padding: .45rem 1rem; border-radius: 999px; font-weight: 600;
}
nav .nav-cta:hover { background: #2b2b2b; color: var(--white); }

/* Hero (light) */
.hero { background: radial-gradient(1200px 520px at 80% 0%, #ffffff 0%, #e6e8ea 70%); color: var(--black); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 2rem; align-items: center; padding: 5rem 0 4.5rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .22em; font-size: .78rem; color: var(--silver-dark); margin: 0 0 1rem; }
h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); line-height: 1.08; margin: 0 0 1.2rem; letter-spacing: -.02em; }
.lead { font-size: 1.15rem; color: #3d4247; max-width: 34rem; margin: 0 0 2rem; }
.btn {
  display: inline-block; background: var(--black);
  color: var(--white); text-decoration: none; font-weight: 700;
  padding: .85rem 1.6rem; border-radius: 999px;
}
.btn:hover { background: #2b2b2b; }
.hero-art svg { width: 100%; max-width: 340px; height: auto; display: block; margin-inline: auto; filter: drop-shadow(0 18px 28px rgba(0,0,0,.28)); }

/* Sections (dark) */
.section { padding: 4.5rem 0; background: var(--black); color: var(--white); }
.section h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin: 0 0 .6rem; letter-spacing: -.01em; }
.section-lead { color: var(--silver); margin: 0 0 2rem; font-size: 1.05rem; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.card {
  border: 1px solid #333; border-radius: var(--radius); padding: 1.8rem;
  background: linear-gradient(180deg, #1a1a1a, #101010);
}
.card h3 { font-size: 2rem; margin: 0 0 .5rem; letter-spacing: .04em; }
.card p { margin: 0; color: var(--silver); }

/* Light section (About) */
.section-light { background: var(--white); color: var(--black); }
.section-light h2 { margin-bottom: 2rem; }
.points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.point { border-top: 2px solid var(--black); padding-top: 1rem; }
.point h3 { margin: 0 0 .4rem; font-size: 1.15rem; }
.point p { margin: 0; color: #3d4247; }

.contact { text-align: center; }
.email-link {
  display: inline-block; font-size: clamp(1.1rem, 3vw, 1.6rem); font-weight: 700;
  color: var(--white); text-decoration: none; border-bottom: 3px solid var(--silver-dark);
  padding-bottom: .2rem; word-break: break-all;
}
.email-link:hover { border-bottom-color: var(--white); }
.section a:focus-visible { outline-color: var(--silver); }

/* Footer (light) */
.site-footer { background: var(--white); color: #3d4247; border-top: 1px solid var(--line); padding: 1.4rem 0; font-size: .9rem; }
.footer-row { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; align-items: center; }
.site-footer .brand-name { color: var(--black); }

@media (max-width: 760px) {
  .hero-grid { grid-template-columns: 1fr; padding: 3.5rem 0 3rem; }
  .hero-art { order: -1; }
  .hero-art svg { max-width: 220px; }
  .cards, .points { grid-template-columns: 1fr; }
  nav { gap: .9rem; }
  .section { padding: 3.2rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}