/* NEO-BRUTALIST leaderboard v2 — thick borders, hard shadows, real fonts. */
:root {
  --bg: #f2efe9;
  --paper: #fffdf7;
  --ink: #141414;
  --yellow: #ffe600;
  --pink: #ff6b9d;
  --cyan: #6fe7ff;
  --lime: #8aff5e;
  --orange: #ffb02e;
  --border: 3px solid var(--ink);
  --shadow: 7px 7px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --display: "Archivo Black", "Arial Black", Impact, sans-serif;
  --body: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  min-height: 100vh;
}

::selection { background: var(--yellow); }

a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}
a:hover { background: var(--yellow); text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--pink); outline-offset: 3px; }

code, pre { font-family: var(--mono); }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 1.25rem; }

/* ---------- header ---------- */
header { padding: 2rem 0 0.5rem; }
header .wrap { display: flex; align-items: center; gap: 1.1rem; flex-wrap: wrap; }

.brand {
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  background: var(--lime);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0.3rem 1rem 0.2rem;
  text-decoration: none;
}
.brand:hover { box-shadow: 2px 2px 0 var(--ink); transform: translate(2px, 2px); }

.qed {
  font-family: var(--display);
  font-size: 1.3rem;
  line-height: 1;
  background: var(--ink);
  color: var(--yellow);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0.4rem 0.65rem;
  transform: rotate(2deg);
}

.tag {
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--paper);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0.45rem 0.8rem;
  transform: rotate(-1deg);
}

/* ---------- hero ---------- */
.hero { margin: 2.8rem 0 2.2rem; }
.hero h1 {
  font-family: var(--display);
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}
.hero h1 span {
  display: inline-block;
  background: var(--yellow);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0 0.25em;
}
.hero .sub {
  margin-top: 1.6rem;
  max-width: 62ch;
  background: var(--paper);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.1rem 1.3rem;
}

/* ---------- board ---------- */
#board {
  background: var(--paper);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.4rem 1rem;
  margin-bottom: 3rem;
  overflow-x: auto;
}

table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { text-align: left; padding: 0.75rem; }
thead th {
  font-family: var(--body);
  font-weight: 700;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
  padding: 0.6rem 0.75rem;
}
tbody td { border-bottom: 2px solid var(--ink); font-size: 0.92rem; }
tbody tr:hover td { background: #fff3ad; }

td.rank { font-family: var(--display); font-size: 1.05rem; width: 2.6rem; }
td.model { font-weight: 700; }
tr:first-child td.model::after { content: " ★"; }

td.score { white-space: nowrap; }
.score-badge {
  display: inline-block;
  font-family: var(--display);
  font-size: 0.95rem;
  background: var(--lime);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0.2rem 0.6rem;
}
tr:first-child .score-badge { background: var(--yellow); }

.bar {
  display: inline-block;
  vertical-align: middle;
  width: 110px; height: 14px;
  margin-left: 0.75rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  overflow: hidden;
}
.bar i { display: block; height: 100%; background: var(--lime); border-right: 2px solid var(--ink); }

/* tier badges — one loud color per difficulty, inside a single column */
.tier { white-space: nowrap; font-size: 0.78rem; }
.badge {
  display: inline-block;
  font-weight: 700;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  padding: 0.15rem 0.5rem;
  margin-right: 0.45rem;
}
.badge.trivial { background: var(--lime); }
.badge.easy    { background: var(--cyan); }
.badge.medium  { background: var(--orange); }
.badge.hard    { background: var(--pink); }

td.steps, th.steps { text-align: center; }
td.steps { font-weight: 700; }
td.date, th.date { font-size: 0.78rem; font-weight: 700; white-space: nowrap; color: #4c4c4c; }

.loading { font-weight: 700; padding: 1.2rem 0.4rem; }
.error {
  border: var(--border);
  box-shadow: var(--shadow-sm);
  background: var(--pink);
  padding: 1rem 1.2rem;
  font-weight: 700;
}

/* ---------- howto ---------- */
.howto { margin-bottom: 3.5rem; }
.howto h2 {
  display: inline-block;
  font-family: var(--display);
  font-size: 1.15rem;
  text-transform: uppercase;
  background: var(--cyan);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 0.35rem 0.9rem;
  margin-bottom: 1.4rem;
}
pre {
  background: var(--ink);
  color: var(--lime);
  border: var(--border);
  box-shadow: var(--shadow);
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  font-size: 0.85rem;
  line-height: 1.8;
  margin-bottom: 1.1rem;
}
.howto p { max-width: 64ch; }
.howto p code {
  background: var(--yellow);
  border: 2px solid var(--ink);
  padding: 0.05em 0.35em;
  font-size: 0.85em;
}
pre code { background: none; border: none; padding: 0; color: inherit; }

/* ---------- footer ---------- */
footer { border-top: 4px solid var(--ink); background: var(--yellow); padding: 1.1rem 0; }
footer .wrap {
  font-family: var(--display);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

@media (max-width: 640px) {
  th.date, td.date { display: none; }
  .bar { display: none; }
  .tag { transform: none; }
}