/* ML Hyperparameter Lab — estilos base (tokens claro/oscuro, layout, componentes) */
:root {
  color-scheme: light;
  --bg: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f3f2ee;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.22);
  --accent: #2a78d6;
  --accent-ink: #184f95;
  --accent-wash: rgba(42, 120, 214, 0.09);
  --s1: #2a78d6;   /* categórico 1: azul   */
  --s2: #eb6834;   /* categórico 2: naranja */
  --s3: #1baf7a;   /* categórico 3: aqua    */
  --s4: #eda100;   /* categórico 4: amarillo*/
  --good: #006300;
  --bad: #d03b3b;
  --shadow: 0 1px 2px rgba(11, 11, 11, 0.04), 0 8px 24px -12px rgba(11, 11, 11, 0.12);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
    --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835;
    --border: rgba(255, 255, 255, 0.10); --border-strong: rgba(255, 255, 255, 0.24);
    --accent: #3987e5; --accent-ink: #86b6ef; --accent-wash: rgba(57, 135, 229, 0.14);
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --good: #0ca30c; --bad: #e66767;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
  --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --axis: #383835;
  --border: rgba(255, 255, 255, 0.10); --border-strong: rgba(255, 255, 255, 0.24);
  --accent: #3987e5; --accent-ink: #86b6ef; --accent-wash: rgba(57, 135, 229, 0.14);
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --good: #0ca30c; --bad: #e66767;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px -12px rgba(0, 0, 0, 0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-underline-offset: 3px; }
code, .mono { font-family: var(--mono); font-size: 0.88em; }
code { background: var(--surface-2); padding: 0.1em 0.4em; border-radius: 6px; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0; letter-spacing: -0.015em; }
p { margin: 0 0 0.9em; }
.wrap { width: min(1320px, 100% - 32px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; height: 56px;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { height: 100%; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; color: var(--ink); text-decoration: none; letter-spacing: -0.01em; }
.brand svg { width: 26px; height: 26px; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 6px 10px; border-radius: 8px; font-size: 0.92rem; }
.nav a:hover { background: var(--surface-2); color: var(--ink); }
.icon-btn {
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: transparent; border: 1px solid var(--border); color: var(--ink-2); cursor: pointer;
}
.icon-btn:hover { background: var(--surface-2); color: var(--ink); }

/* Botones y chips */
.btn {
  font: inherit; font-size: 0.9rem; font-weight: 550; padding: 8px 14px; border-radius: 10px; cursor: pointer;
  background: var(--surface); color: var(--ink); border: 1px solid var(--border-strong);
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn.sm { padding: 5px 10px; font-size: 0.82rem; border-radius: 8px; }
.btn[aria-pressed="true"], .btn.on { background: var(--accent-wash); border-color: var(--accent); color: var(--accent-ink); }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px;
  font-size: 0.78rem; font-weight: 600; background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--border);
}
.seg { display: inline-flex; padding: 3px; gap: 2px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); flex-wrap: wrap; }
.seg button {
  font: inherit; font-size: 0.85rem; font-weight: 550; padding: 5px 12px; border-radius: 7px; border: 0; cursor: pointer;
  background: transparent; color: var(--ink-2);
}
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.15); }
.seg button:hover:not([aria-pressed="true"]) { color: var(--ink); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }

/* Tooltip global */
#tip {
  position: fixed; z-index: 100; max-width: 320px; pointer-events: none; opacity: 0; transition: opacity .12s;
  background: var(--ink); color: var(--bg); padding: 9px 12px; border-radius: 10px; font-size: 0.82rem; line-height: 1.45;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
}
#tip.on { opacity: 1; }
#tip b { font-weight: 650; }
#tip .tip-h { display: block; font-weight: 650; margin-bottom: 2px; }
#tip .tip-sub { display: block; opacity: 0.72; margin-top: 4px; font-size: 0.76rem; }
#tip .tip-row { display: flex; justify-content: space-between; gap: 14px; font-variant-numeric: tabular-nums; }
#tip .dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
[data-tip] { cursor: help; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 72px; padding: 32px 0 48px; color: var(--ink-2); font-size: 0.9rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }

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