/* Documentation — landing language, more visual presence. */

:root {
  --bg: #0c0d10;
  --floor: #14161c;
  --ink: #f2f0ea;
  --dim: #8b8f9a;
  --line: #2a2e38;
  --lime: #c8f135;
  --lime-ink: #101208;
  --blue: #5aa6ff;
  --rose: #ff6b6b;
  --gold: #ffc857;
  --ok: #c8f135;
  --warn: #ffc857;
  --bad: #ff6b6b;
  --text: var(--ink);
  --muted: var(--dim);
  --accent: var(--lime);
  --panel: var(--floor);
  --panel-2: #1a1d24;
  --radius: 0;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background:
    radial-gradient(ellipse 80% 50% at 110% -5%, rgba(200, 241, 53, 0.11), transparent 55%),
    radial-gradient(ellipse 55% 40% at -15% 20%, rgba(90, 166, 255, 0.08), transparent 50%),
    var(--bg);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--lime); text-decoration: none; }
a:hover { filter: brightness(1.08); }

/* ── Header ──────────────────────────────────────────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
  padding: 16px clamp(16px, 3vw, 28px);
  background: rgba(12, 13, 16, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
}

.brand {
  font-family: var(--display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink);
  filter: none;
}
.brand span,
.brand em {
  font-style: normal;
  color: var(--lime);
}

.topbar nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-left: auto;
  color: var(--dim);
}
.topbar nav a { color: var(--dim); filter: none; }
.topbar nav a:hover { color: var(--ink); }

.burger {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 0;
  padding: 5px 10px;
  font-size: 14px;
  cursor: pointer;
  font-family: var(--mono);
}
.burger:hover { border-color: var(--ink); }

/* ── Structure ────────────────────────────────────────────────────────────── */

.shell {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr) 190px;
  gap: 36px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 28px);
}

.toc, .onthis {
  position: sticky;
  top: 64px;
  align-self: start;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  padding: 28px 0 48px;
  font-size: 13.5px;
}

.toc strong, .onthis strong {
  display: block;
  margin: 22px 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
}
.toc strong:first-child,
.onthis strong:first-child { margin-top: 0; }

.toc a, .onthis a {
  display: block;
  padding: 5px 0 5px 12px;
  border-left: 2px solid transparent;
  color: var(--dim);
  filter: none;
}
.toc a:hover, .onthis a:hover { color: var(--ink); }
.toc a.on, .onthis a.on {
  color: var(--ink);
  border-left-color: var(--lime);
}

.onthis a { font-size: 12.5px; padding: 4px 0 4px 12px; }

main { padding: 28px 0 120px; min-width: 0; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */

.doc-hero {
  position: relative;
  margin: 0 0 8px;
  padding: 28px 28px 26px;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 70% 90% at 100% 0%, rgba(200, 241, 53, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 70% at 0% 100%, rgba(90, 166, 255, 0.1), transparent 50%),
    linear-gradient(180deg, #151820 0%, #10131a 100%);
  overflow: hidden;
}
.doc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(255,255,255,0.02) 31px 32px),
    repeating-linear-gradient(90deg, transparent 0 31px, rgba(255,255,255,0.02) 31px 32px);
  pointer-events: none;
}
.doc-hero > * { position: relative; z-index: 1; }

.eyebrow {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lime);
}

.doc-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(48px, 8vw, 78px);
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}
.doc-hero h1 em {
  font-style: normal;
  color: var(--lime);
}

.lead {
  font-size: 16px;
  color: var(--dim);
  margin: 14px 0 0;
  max-width: 48ch;
}

.jumps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.jump {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: rgba(12, 13, 16, 0.55);
  color: var(--ink);
  filter: none;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.jump:hover {
  border-color: var(--c, var(--lime));
  color: var(--c, var(--lime));
  filter: none;
}
.jump i {
  width: 7px; height: 7px;
  background: var(--c, var(--lime));
  font-style: normal;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 11px 14px;
  border: 1px solid var(--lime);
  background: var(--lime);
  color: var(--lime-ink);
  filter: none;
}
.btn:hover { filter: brightness(1.06); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn.ghost:hover {
  border-color: var(--ink);
  filter: none;
}

/* ── Typographie ──────────────────────────────────────────────────────────── */

h1 {
  margin: 0 0 14px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(42px, 7vw, 64px);
  line-height: 0.92;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

h2 {
  position: relative;
  margin: 64px 0 16px;
  padding: 28px 0 0;
  border-top: 1px solid var(--line);
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 36px);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  line-height: 0.98;
}
h2::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--lime);
}
h2:first-of-type { border-top: none; padding-top: 0; margin-top: 40px; }
h2:first-of-type::before { display: none; }

h3 {
  margin: 34px 0 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

p { margin: 0 0 14px; max-width: 68ch; }
ul, ol { max-width: 68ch; padding-left: 22px; }
li { margin-bottom: 6px; }
strong { color: var(--ink); }
em { color: var(--ink); }

code {
  font-family: var(--mono);
  font-size: 0.875em;
  background: rgba(200, 241, 53, 0.06);
  border: 1px solid rgba(200, 241, 53, 0.18);
  border-radius: 0;
  padding: 1px 6px;
  color: #dfe8b8;
}

pre {
  position: relative;
  background: #08090c;
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: 0;
  padding: 18px 18px;
  overflow-x: auto;
  margin: 0 0 20px;
  box-shadow: inset 0 1px 0 rgba(200, 241, 53, 0.04);
}
pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 13px;
  line-height: 1.65;
  color: #c9ced8;
}

.copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--floor);
  border: 1px solid var(--line);
  color: var(--dim);
  border-radius: 0;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.12s, border-color 0.12s, color 0.12s, background 0.12s;
}
pre:hover .copy { opacity: 1; }
.copy:hover {
  color: var(--lime-ink);
  background: var(--lime);
  border-color: var(--lime);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 22px;
  font-size: 14.5px;
  border: 1px solid var(--line);
  background: rgba(20, 22, 28, 0.55);
}
th, td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
tr:last-child td { border-bottom: none; }
th {
  background: rgba(200, 241, 53, 0.05);
  color: var(--dim);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
td code { white-space: nowrap; }
tr:hover td { background: rgba(255, 255, 255, 0.015); }

blockquote {
  margin: 0 0 18px;
  padding: 14px 18px;
  background:
    linear-gradient(90deg, rgba(200, 241, 53, 0.08), transparent 40%),
    var(--floor);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: 0;
  color: var(--dim);
}
blockquote p:last-child { margin: 0; }
blockquote strong { color: var(--ink); }
blockquote.warn {
  border-left-color: var(--gold);
  background:
    linear-gradient(90deg, rgba(255, 200, 87, 0.1), transparent 40%),
    var(--floor);
}

/* ── Pillars / intro ──────────────────────────────────────────────────────── */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 22px 0 24px;
}
.card {
  --c: var(--lime);
  position: relative;
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, color-mix(in srgb, var(--c) 16%, transparent), transparent 60%),
    var(--floor);
  border: 1px solid var(--line);
  border-top: 2px solid var(--c);
  border-radius: 0;
  padding: 18px 18px 16px;
  transition: border-color 0.15s, transform 0.2s;
}
.card:hover {
  border-color: color-mix(in srgb, var(--c) 50%, var(--line));
  transform: translateY(-2px);
}
.card:nth-child(1) { --c: var(--blue); }
.card:nth-child(2) { --c: var(--lime); }
.card:nth-child(3) { --c: var(--gold); }
.card .n {
  display: block;
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c);
}
.card h4 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 26px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 0.95;
  color: var(--ink);
}
.card p {
  margin: 0;
  font-size: 14px;
  color: var(--dim);
  max-width: 28ch;
}

/* ── Channels ─────────────────────────────────────────────────────────────── */

.channels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 20px 0 22px;
}
.channel {
  --c: var(--lime);
  position: relative;
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 90% 70% at 0% 0%, color-mix(in srgb, var(--c) 18%, transparent), transparent 55%),
    #10131a;
  overflow: hidden;
}
.channel::after {
  content: "";
  position: absolute;
  right: -20px; top: -20px;
  width: 90px; height: 90px;
  border: 18px solid color-mix(in srgb, var(--c) 12%, transparent);
  border-radius: 50%;
  pointer-events: none;
}
.channel.direct { --c: #5aa6ff; }
.channel.state { --c: #c8f135; }
.channel.event { --c: #ff6b6b; }
.channel .tag {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c);
}
.channel h4 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: 28px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 0.95;
}
.channel .api {
  margin: 6px 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
}
.channel p {
  margin: 0;
  font-size: 13.5px;
  color: var(--dim);
  max-width: 28ch;
}
.channel ul {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  max-width: none;
}
.channel li {
  margin: 0;
  padding: 5px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--dim);
}
.channel li b { color: var(--ink); font-weight: 500; }

.rule {
  margin: 18px 0 20px;
  padding: 14px 16px;
  border: 1px solid rgba(200, 241, 53, 0.35);
  background: rgba(200, 241, 53, 0.07);
  font-size: 14.5px;
  color: var(--ink);
}
.rule strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--lime);
  font-weight: 500;
}

/* ── Recipes ──────────────────────────────────────────────────────────────── */

.recipes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 18px 0 24px;
}
.recipe {
  --c: var(--lime);
  display: grid;
  grid-template-rows: 110px auto;
  border: 1px solid var(--line);
  background: var(--floor);
  color: inherit;
  text-decoration: none;
  filter: none;
  transition: border-color 0.15s, transform 0.2s;
  overflow: hidden;
}
.recipe:hover {
  border-color: color-mix(in srgb, var(--c) 55%, var(--line));
  transform: translateY(-2px);
  filter: none;
}
.recipe .art {
  position: relative;
  background:
    radial-gradient(ellipse 80% 80% at 70% 30%, color-mix(in srgb, var(--c) 22%, transparent), transparent 60%),
    #10131a;
}
.recipe .art::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 23px, rgba(255,255,255,0.03) 23px 24px),
    repeating-linear-gradient(90deg, transparent 0 23px, rgba(255,255,255,0.03) 23px 24px);
}
.recipe .body { padding: 14px 16px 16px; }
.recipe .tag {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c);
}
.recipe h4 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.recipe p {
  margin: 6px 0 0;
  font-size: 13.5px;
  color: var(--dim);
  max-width: 34ch;
}
.r-morpion { --c: #5aa6ff; }
.r-arene { --c: #ffc857; }
.r-fps { --c: #c8f135; }
.r-slither { --c: #ff6b6b; }

/* Mini arts */
.art-board {
  position: absolute;
  left: 50%; top: 54%;
  width: 72px; height: 72px;
  transform: translate(-50%, -50%) rotate(-8deg);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  z-index: 1;
}
.art-board i {
  background: #161a22;
  border: 1px solid #2a3140;
  font-style: normal;
  display: grid; place-items: center;
  font-family: var(--display);
  font-weight: 800;
  font-size: 14px;
}
.art-board .x { color: #5aa6ff; }
.art-board .o { color: #c8f135; }

.art-orbs { position: absolute; inset: 0; z-index: 1; }
.art-orbs b {
  position: absolute;
  width: var(--s, 10px); height: var(--s, 10px);
  border-radius: 50%;
  background: var(--oc);
  box-shadow: 0 0 12px color-mix(in srgb, var(--oc) 55%, transparent);
}

.art-lanes {
  position: absolute;
  inset: 18% 12% 10%;
  perspective: 300px;
  z-index: 1;
}
.art-lanes .f {
  position: absolute;
  inset: 10% 0 0;
  transform: rotateX(55deg);
  transform-origin: top;
  background:
    linear-gradient(90deg, transparent 48%, rgba(200,241,53,.5) 48% 52%, transparent 52%),
    repeating-linear-gradient(90deg, transparent 0 18px, rgba(90,166,255,.15) 18px 19px),
    #151820;
  border: 1px solid rgba(200,241,53,.25);
}

.art-snake {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
}

/* ── Methods / tabs / footer ──────────────────────────────────────────────── */

.method {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 0;
  margin-right: 8px;
  vertical-align: 1px;
  border: 1px solid transparent;
}
.get {
  background: rgba(200, 241, 53, 0.12);
  color: var(--lime);
  border-color: rgba(200, 241, 53, 0.28);
}
.post {
  background: rgba(90, 166, 255, 0.12);
  color: var(--blue);
  border-color: rgba(90, 166, 255, 0.28);
}
.patch, .put {
  background: rgba(255, 200, 87, 0.12);
  color: var(--gold);
  border-color: rgba(255, 200, 87, 0.28);
}
.del {
  background: rgba(255, 107, 107, 0.12);
  color: var(--rose);
  border-color: rgba(255, 107, 107, 0.28);
}

.tabs {
  display: flex;
  gap: 0;
  margin-bottom: -1px;
  border-bottom: 1px solid var(--line);
}
.tabs button {
  background: none;
  border: 1px solid transparent;
  border-bottom: none;
  color: var(--dim);
  padding: 9px 16px;
  border-radius: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}
.tabs button:hover { color: var(--ink); }
.tabs button.on {
  background: #08090c;
  border-color: var(--line);
  color: var(--lime);
}
[data-pane].off { display: none; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 18px 0 22px;
}
.stat {
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--floor);
}
.stat b {
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: 28px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--lime);
  line-height: 1;
}
.stat span {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dim);
}

footer {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding-top: 22px;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
footer a { color: var(--dim); filter: none; }
footer a:hover { color: var(--lime); }

@media (max-width: 1080px) {
  .shell { grid-template-columns: 210px minmax(0, 1fr); }
  .onthis { display: none; }
}

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; gap: 0; }
  .burger { display: block; }
  .topbar nav { display: none; }
  .toc {
    position: static;
    max-height: none;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }
  .toc.off { display: none; }
  .cards, .channels, .recipes, .stat-row { grid-template-columns: 1fr; }
  .doc-hero { padding: 22px 18px; }
  h1, .doc-hero h1 { font-size: 40px; }
}