:root {
  color-scheme: dark;
  --bg: #081016;
  --panel: #101b23;
  --panel-soft: #0c171e;
  --line: #263640;
  --text: #edf5f7;
  --muted: #9fb0b8;
  --accent: #6ee7b7;
  --accent-dark: #103d32;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 5%, rgba(110, 231, 183, .09), transparent 30rem),
    linear-gradient(180deg, #091219 0%, var(--bg) 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }
.site-header, main, footer { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(159, 176, 184, .16);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 720; letter-spacing: -.01em; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  aspect-ratio: 1;
  border: 1px solid rgba(110, 231, 183, .65);
  border-radius: 9px;
  color: var(--accent);
  font-size: .78rem;
}
nav { display: flex; gap: 24px; }
nav a { color: var(--muted); text-decoration: none; font-size: .92rem; }
nav a:hover, nav a:focus-visible { color: var(--text); }

.hero { max-width: 880px; padding: 112px 0 104px; }
.eyebrow { margin: 0 0 14px; color: var(--accent); font-size: .75rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -.035em; }
h1 { max-width: 850px; margin-bottom: 24px; font-size: clamp(2.8rem, 7vw, 5.8rem); }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { margin-bottom: 12px; font-size: 1.35rem; }
.lead { max-width: 700px; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 0 19px; border: 1px solid var(--line); border-radius: 10px; text-decoration: none; font-weight: 700; }
.button.primary { border-color: var(--accent); background: var(--accent); color: #052019; }
.button.secondary { background: rgba(255,255,255,.025); }
.button:hover { transform: translateY(-1px); }
.button:focus-visible, a:focus-visible { outline: 3px solid rgba(110,231,183,.35); outline-offset: 3px; }

.section { padding: 88px 0; border-top: 1px solid rgba(159,176,184,.16); }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 40px; align-items: end; margin-bottom: 34px; }
.section-heading p:last-child { margin: 0 0 18px; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { min-height: 265px; padding: 26px; border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, rgba(16,27,35,.96), rgba(9,18,24,.96)); }
.card p:not(.meta) { color: var(--muted); }
.meta { color: var(--accent); font-size: .77rem; letter-spacing: .06em; text-transform: uppercase; }
.status { display: inline-block; margin-top: 16px; padding: 5px 9px; border-radius: 999px; background: var(--accent-dark); color: #aaf2d7; font-size: .76rem; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; }
.project-list { border-top: 1px solid var(--line); }
.project { display: flex; justify-content: space-between; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.project span { font-weight: 720; }
.project small { color: var(--muted); }
.about { max-width: 760px; margin-left: max(20px, calc((100% - var(--max)) / 2)); }
.about > p:last-child { color: var(--muted); font-size: 1.1rem; }
footer { display: flex; justify-content: space-between; gap: 20px; padding: 30px 0 42px; border-top: 1px solid rgba(159,176,184,.16); color: var(--muted); font-size: .85rem; }

.error-page { display: grid; place-items: center; padding: 24px; }
.error-card { width: min(100%, 620px); margin: 0; padding: 44px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); }
.error-card h1 { font-size: clamp(2.2rem, 7vw, 4rem); }
.error-card p:not(.eyebrow) { margin-bottom: 28px; color: var(--muted); }

@media (max-width: 760px) {
  .site-header { align-items: flex-start; padding: 20px 0; }
  nav { gap: 14px; padding-top: 7px; }
  nav a { font-size: .82rem; }
  .hero { padding: 80px 0 76px; }
  .section { padding: 68px 0; }
  .section-heading, .split, .card-grid { grid-template-columns: 1fr; }
  .section-heading, .split { gap: 24px; }
  .card { min-height: 0; }
}

@media (max-width: 480px) {
  .site-header, main, footer { width: min(calc(100% - 28px), var(--max)); }
  .site-header { display: block; }
  nav { margin-top: 15px; }
  h1 { font-size: 2.55rem; }
  footer, .project { flex-direction: column; }
  .error-card { padding: 30px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}