:root {
  --bg: #0b0c10;
  --card: #12141b;
  --text: #e9edf5;
  --muted: #a8b0c0;
  --border: rgba(255, 255, 255, 0.10);
  --accent: #e9edf5;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --max: 1040px;
}

:root[data-theme="light"] {
  --bg: #fbfbfd;
  --card: #ffffff;
  --text: #0c1020;
  --muted: #4b5568;
  --border: rgba(12, 16, 32, 0.10);
  --accent: #0c1020;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 4px; }

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.skip {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
}
.skip:focus { left: 20px; z-index: 999; }

.header {
  position: sticky;
  top: 0;
  background: color-mix(in oklab, var(--bg) 84%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 50;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 16px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
  font-weight: 700;
  letter-spacing: 0.5px;
}
.brand__name { font-weight: 650; }
.brand__role { color: var(--muted); font-size: 0.92rem; }

.nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav a { color: var(--muted); font-size: 0.95rem; }
.nav a:hover { color: var(--text); text-decoration: none; }

.theme {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
}
.theme:hover { filter: brightness(1.05); }

.hero { padding: 44px 0 18px; }
.hero h1 {
  font-size: clamp(2.0rem, 3.2vw, 3.0rem);
  line-height: 1.12;
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}
.lede { color: var(--muted); font-size: 1.05rem; max-width: 70ch; }

.cta { display: flex; gap: 12px; margin: 18px 0 10px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--text);
  color: var(--bg);
  font-weight: 650;
}
.btn:hover { text-decoration: none; filter: brightness(0.95); }

.btn--ghost {
  background: var(--card);
  color: var(--text);
}
.btn--ghost:hover { filter: brightness(1.05); }

.meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.pill {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  border-radius: 999px;
  padding: 8px 12px;
}

.section { padding: 30px 0; }
.section h2 {
  margin: 0 0 14px;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}
.card {
  grid-column: span 6;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 6px; font-size: 1.0rem; }
.card p { margin: 0; color: var(--muted); }

.grid--projects .card { grid-column: span 4; }

.item {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  margin-bottom: 14px;
}
.item__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}
.item h3 { margin: 0; font-size: 1.05rem; }
.item ul { margin: 12px 0 0; padding-left: 18px; color: var(--muted); }
.item li { margin: 8px 0; }

.muted { color: var(--muted); }
.small { font-size: 0.95rem; }

.contact { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 10px; }

.footer { padding: 26px 0 46px; border-top: 1px solid var(--border); margin-top: 26px; }

@media (max-width: 860px) {
  .card { grid-column: span 12; }
  .grid--projects .card { grid-column: span 12; }
}