/* Same palette as the MRI viewer. Large, high-contrast text on purpose. */
:root {
  --bg: #0b0c10; --panel: #1a1c24; --border: #2a2d38; --border-strong: #6b7085;
  --text: #d7d9e0; --text-dim: #8b8fa3; --text-h: #f5f6fa; --accent: #5eead4;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { font-size: 112.5%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  font: 1rem/1.6 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text); background: var(--bg);
}
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid #fde047; outline-offset: 3px; }

.top { border-bottom: 1px solid var(--border); }
.nav {
  max-width: 960px; margin: 0 auto; padding: 14px 24px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px;
}
.nav-brand { color: var(--text-h); font-weight: 700; text-decoration: none; letter-spacing: -0.02em; }
.nav-links { list-style: none; display: flex; gap: 22px; margin: 0; padding: 0; flex: 1; }
.nav-links a { color: var(--text-h); text-decoration: none; padding: 4px 0; border-bottom: 2px solid transparent; }
.nav-links a:hover { border-bottom-color: var(--accent); }

.lang { display: flex; gap: 6px; }
.lang button {
  font: inherit; font-size: 0.85rem; color: var(--text); background: transparent;
  border: 1px solid var(--border-strong); border-radius: 6px; padding: 2px 9px; cursor: pointer;
}
/* Active = filled and bold, not colour alone. */
.lang button[aria-pressed='true'] { background: var(--accent); color: #08120f; border-color: var(--accent); font-weight: 700; }

main { flex: 1; width: 100%; max-width: 960px; margin: 0 auto; padding: 56px 24px; }
h1 { color: var(--text-h); font-size: clamp(2rem, 5vw, 2.8rem); margin: 0 0 4px; letter-spacing: -0.02em; }
.role { margin: 0 0 40px; color: var(--text-h); font-size: 1.15rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card {
  display: block; padding: 20px; text-decoration: none; color: var(--text);
  background: var(--panel); border: 1px solid var(--border-strong); border-radius: 12px;
}
.card:hover { border-color: var(--accent); }
.card h2 { margin: 0 0 6px; font-size: 1.2rem; color: var(--text-h); }
.card p { margin: 0; }

.foot { text-align: center; padding: 8px 16px; font-size: 0.75rem; }
.foot span { color: var(--text-dim); opacity: 0.45; }