/* Swiss Data Lab — shared styles */
:root {
  --bg: #0a0a0a;
  --fg: #f5f5f5;
  --muted: #888;
  --accent: #d52b1e; /* Swiss red */
  --accent-2: #00a3e0;
  --card: #161616;
  --border: #2a2a2a;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

header.lab-header {
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-family: var(--mono);
  font-size: 13px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

header.lab-header .brand {
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

header.lab-header nav {
  color: var(--muted);
  overflow-x: auto;
  white-space: nowrap;
  flex: 1;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
header.lab-header nav::-webkit-scrollbar { display: none; }
header.lab-header nav a { margin-right: 14px; color: var(--muted); display: inline-block; }

@media (max-width: 600px) {
  header.lab-header { padding: 10px 14px; gap: 10px; font-size: 12px; }
  header.lab-header .brand { font-size: 11px; }
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px;
}

h1 { font-size: 32px; margin: 0 0 8px; line-height: 1.15; }
h2 { font-size: 22px; margin: 32px 0 12px; }
h3 { font-size: 16px; margin: 16px 0 8px; }
.lede { color: var(--muted); font-size: 16px; margin-bottom: 24px; }

@media (max-width: 600px) {
  main { padding: 20px 14px; }
  h1 { font-size: 26px; }
  h2 { font-size: 19px; margin: 24px 0 10px; }
  .lede { font-size: 14px; margin-bottom: 18px; }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 16px;
}

@media (max-width: 600px) {
  .card { padding: 14px; border-radius: 6px; }
}

input, select, button, textarea {
  background: #1c1c1c;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font-family: var(--sans);
  font-size: 16px; /* >=16px prevents iOS zoom on focus */
  max-width: 100%;
}

input[type="range"] { padding: 0; width: 100%; }
input, select, textarea { width: 100%; }

button {
  background: var(--accent);
  border-color: var(--accent);
  cursor: pointer;
  font-weight: 600;
}
button:hover { filter: brightness(1.1); }
button.secondary { background: #1c1c1c; border-color: var(--border); }

label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.05em; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 700px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 12px; } }

/* Tables: horizontal scroll on small screens */
.card table, table { width: 100%; border-collapse: collapse; font-size: 13px; display: table; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; text-transform: uppercase; font-size: 11px; letter-spacing: 0.05em; }
.card { overflow-x: auto; -webkit-overflow-scrolling: touch; }
@media (max-width: 600px) {
  th, td { padding: 6px 8px; font-size: 12px; }
}

/* SVG fluidity */
svg { max-width: 100%; height: auto; }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.big { font-size: 48px; font-weight: 700; line-height: 1; }
.tiny { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
@media (max-width: 600px) { .big { font-size: 36px; } }

footer.lab-footer {
  border-top: 1px solid var(--border);
  padding: 24px 20px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
  margin-top: 60px;
}