/* Pusula project page. No external fonts, scripts or trackers. */
:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f1f0ec;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --accent: #017a6b;
  --accent-ink: #046d60;
  --accent-wash: rgba(1, 122, 107, 0.08);
  --on-accent: #ffffff;
  /* dumbbell: one hue, two shades (validated, ordinal) */
  --base: #6bc4b3;
  --pusula: #088777;
  --link: rgba(1, 122, 107, 0.35);
  --radius: 10px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #232321;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --accent: #28d4bc;
    --accent-ink: #5fe0cc;
    --accent-wash: rgba(40, 212, 188, 0.12);
    --on-accent: #101a2f;
    --base: #046d60;
    --pusula: #28d4bc;
    --link: rgba(95, 224, 204, 0.35);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-ink); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
code, pre { font-family: var(--mono); font-size: 0.875rem; }
:not(pre) > code { background: var(--surface-2); padding: 0.1em 0.35em; border-radius: 4px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* header */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--page) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.top .wrap { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.brand img { height: 30px; width: auto; display: block; }
.nav { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.94rem; }
.nav a:hover { color: var(--ink); }
.nav .lang { border: 1px solid var(--border); border-radius: 999px; padding: 3px 12px; color: var(--ink); }
@media (max-width: 760px) { .nav a:not(.lang):not(.gh) { display: none; } }

/* hero */
.hero { padding-top: 72px; padding-bottom: 40px; }
.eyebrow { color: var(--accent-ink); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.02em; margin: 0 0 12px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.02em; font-weight: 700; }
.hero .lead { font-size: 1.15rem; color: var(--ink-2); max-width: 760px; margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 8px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; border: 1px solid var(--border); color: var(--ink); background: var(--surface);
}
.btn:hover { border-color: var(--accent); color: var(--ink); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: var(--on-accent); }
.btn svg { width: 18px; height: 18px; }

/* stat tiles */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 40px 0 8px; }
@media (max-width: 760px) { .tiles { grid-template-columns: 1fr; } }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.tile .label { color: var(--ink-2); font-size: 0.92rem; margin: 0; }
.tile .value { font-size: 2.6rem; font-weight: 650; line-height: 1.15; margin: 6px 0 2px; }
.tile .delta { margin: 0; font-size: 0.9rem; color: var(--ink-2); }
.tile .delta strong { color: var(--accent-ink); font-weight: 600; }
.note { color: var(--muted); font-size: 0.85rem; margin: 8px 0 0; }

/* sections */
section { padding: 56px 0; border-top: 1px solid var(--border); scroll-margin-top: 60px; }
section h2 { font-size: 1.75rem; margin: 0 0 8px; letter-spacing: -0.01em; }
section .sub { color: var(--ink-2); margin: 0 0 28px; max-width: 760px; }
h3 { font-size: 1.05rem; margin: 0 0 6px; }
h3.mt { margin: 32px 0 10px; }

.grid { display: grid; gap: 16px; }
.grid > *, .stack > * { min-width: 0; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.two { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid.three { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid.three, .grid.two { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card p { margin: 0; color: var(--ink-2); font-size: 0.95rem; }
.card .tag { display: inline-block; font-size: 0.78rem; font-weight: 600; color: var(--accent-ink); background: var(--accent-wash); border-radius: 999px; padding: 2px 10px; margin-bottom: 10px; }
.card dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 14px 0 0; font-size: 0.93rem; }
.card dt { color: var(--muted); }
.card dd { margin: 0; }

pre {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; overflow-x: auto; line-height: 1.5; margin: 0;
}
.code-title { font-size: 0.85rem; color: var(--muted); margin: 0 0 6px; font-weight: 600; }
.stack > * + * { margin-top: 18px; }

/* tables */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--grid); }
tr:last-child td { border-bottom: 0; }
th { color: var(--ink-2); font-weight: 600; background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.best { font-weight: 700; }
.notes { color: var(--ink-2); font-size: 0.92rem; padding-left: 20px; margin: 20px 0 0; }
.notes li + li { margin-top: 6px; }

/* dumbbell chart */
.chart { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 20px 12px; margin: 0 0 20px; position: relative; }
.chart h3 { margin: 0; }
.chart .chart-sub { color: var(--ink-2); font-size: 0.88rem; margin: 2px 0 12px; }
.legend { display: flex; gap: 18px; font-size: 0.88rem; color: var(--ink-2); margin: 0 0 6px; padding: 0; list-style: none; }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.legend .dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.legend .d-base-key { background: var(--base); }
.legend .d-pusula-key { background: var(--pusula); }
.chart svg { display: block; width: 100%; height: auto; overflow: visible; }
.chart .row-label { fill: var(--ink); font-size: 13px; }
.chart .tick { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .val { fill: var(--ink); font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .link { stroke: var(--link); stroke-width: 2; stroke-linecap: round; }
.chart .d-base { fill: var(--base); stroke: var(--surface); stroke-width: 2; }
.chart .d-pusula { fill: var(--pusula); stroke: var(--surface); stroke-width: 2; }
.chart .row { cursor: default; }
.chart .row .hit { fill: transparent; }
.chart .row:hover .hit, .chart .row:focus .hit { fill: var(--accent-wash); }
.chart .row:focus { outline: none; }
.tooltip {
  position: absolute; pointer-events: none; z-index: 5;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); padding: 8px 12px; font-size: 0.85rem; min-width: 180px;
}
.tooltip[hidden] { display: none; }
.tooltip .t-title { color: var(--ink-2); margin: 0 0 4px; }
.tooltip .t-row { display: flex; align-items: center; gap: 8px; }
.tooltip .t-row strong { font-variant-numeric: tabular-nums; min-width: 2.6em; }
.tooltip .key { width: 12px; height: 2px; display: inline-block; border-radius: 1px; }

/* footer */
footer { border-top: 1px solid var(--border); padding: 28px 0 40px; color: var(--muted); font-size: 0.88rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
footer a { color: var(--ink-2); }

/* language chooser (root page) */
.chooser { min-height: 100vh; display: grid; place-items: center; text-align: center; }
.chooser .cta { justify-content: center; margin-top: 20px; }

@media (max-width: 640px) {
  th, td { padding: 9px 10px; }
  table.results th:nth-child(2), table.results td:nth-child(2) { display: none; }
}

/* brand kit page */
.assets { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.asset { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.asset .view { height: 180px; display: grid; place-items: center; padding: 24px; background: #f9f9f7; }
.asset .view.navy { background: #101a2f; }
.asset .view.ink { background: #121212; }
.asset .view.video { height: auto; padding: 0; background: #101a2f; }
.asset .view video { width: 100%; aspect-ratio: 1; display: block; }
.asset .view img { width: 100%; height: 132px; object-fit: contain; display: block; }
.asset .meta { padding: 12px 16px; display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: baseline; font-size: 0.9rem; }
.asset .meta strong { margin-right: auto; }
.asset .meta span { color: var(--muted); }
.swatches { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 16px; }
.swatch { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.swatch .chip { height: 84px; }
.swatch p { margin: 0; padding: 10px 14px; font-size: 0.9rem; }
.swatch code { background: none; padding: 0; color: var(--ink-2); }
.chip.c1 { background: #101a2f; } .chip.c2 { background: #28d4bc; } .chip.c3 { background: #017a6b; }
.chip.c4 { background: #0b0b0b; } .chip.c5 { background: #f9f9f7; border-bottom: 1px solid var(--border); }
.en { color: var(--muted); font-weight: 400; font-size: 0.8em; }
.rules { color: var(--ink-2); padding-left: 20px; margin: 0; }
.rules li + li { margin-top: 6px; }