:root {
  color-scheme: light;
  --bg: #f7f7f8;
  --fg: #1c1c1d;
  --muted: #5f6368;
  --card: #ffffff;
  --border: #e2e3e6;
  --accent: #4f46e5;
}

:root[data-bs-theme="dark"] {
  color-scheme: dark;
  --bg: #18181b;
  --fg: #ececee;
  --muted: #a1a1aa;
  --card: #222226;
  --border: #33333a;
  --accent: #a5b4fc;
}

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  padding: 0.4rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--fg);
  line-height: 0;
  cursor: pointer;
}
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--accent); }
:root[data-bs-theme="dark"] .icon-moon,
:root:not([data-bs-theme="dark"]) .icon-sun { display: none; }

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main { width: 100%; max-width: 32rem; }

header { text-align: center; margin-bottom: 2rem; }
h1 { margin: 0; font-size: 2rem; letter-spacing: -0.02em; }
header p { margin: 0.25rem 0 0; }

.muted { color: var(--muted); }

.projects { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }

.card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}
.card:hover, .card:focus-visible { border-color: var(--accent); transform: translateY(-1px); }
.card > span { display: flex; flex-direction: column; }
.card strong { font-size: 1.1rem; }

footer { margin-top: 2.5rem; font-size: 0.9rem; }
footer a { color: inherit; }