/* Insset GCP M1 2026. Thème sobre, inspiré des consoles d'infrastructure. */
:root {
  --ink: #0f172a;
  --text: #1e293b;
  --muted: #5b6575;
  --line: #e2e8f0;
  --soft: #f6f8fa;
  --link: #1d4ed8;
  --night: #0b1220;
  --night-line: #1f2a3c;
  --code-ink: #dbe4f0;
  --accent: #1a73e8;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #fff; color: var(--text); font: 16px/1.7 var(--sans); }
a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.3; font-weight: 650; letter-spacing: -0.015em; }
h1 { font-size: 40px; margin: 6px 0 12px; letter-spacing: -0.03em; }
h2 { font-size: 26px; margin: 0 0 16px; }
h3 { font-size: 18px; margin: 28px 0 10px; }
p { margin: 0 0 16px; }
code { font: 0.88em/1.5 var(--mono); background: var(--soft); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; }
strong { color: var(--ink); font-weight: 650; }

/* En-tête */
header { background: var(--night); border-bottom: 1px solid var(--night-line); }
.top { max-width: 1160px; margin: auto; padding: 14px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font: 600 15px/1 var(--mono); letter-spacing: 0.01em; }
.mark { width: 10px; height: 10px; border-radius: 2px; background: var(--accent); box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08); }
.meta { font: 13px/1 var(--mono); color: #94a3b8; }
.top .secondary { background: transparent; color: #e2e8f0; border-color: #334155; }
.top .secondary:hover { background: #111c2e; }

/* Mise en page */
main { max-width: 1160px; margin: auto; padding: 36px 28px 64px; }
.eyebrow { font: 600 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin: 0 0 8px; }
.lead { font-size: 19px; color: var(--muted); max-width: 760px; }
.small { font-size: 14px; color: var(--muted); }
.back { display: inline-block; font: 13px/1 var(--mono); color: var(--muted); text-decoration: none; margin-bottom: 8px; }
.back:hover { color: var(--ink); }
.back::before { content: "cd .. "; color: #94a3b8; }

.hero { padding: 8px 0 28px; }
.hero p:last-child { margin-bottom: 0; }
.project-hero { padding: 18px 0 34px; border-bottom: 1px solid var(--line); margin-bottom: 34px; }
.project-hero h1 { display: flex; align-items: center; gap: 14px; }
.project-hero h1::before { content: ""; width: 14px; height: 14px; border-radius: 3px; background: var(--accent); flex-shrink: 0; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 14px 0 0; }
.tags li { font: 12px/1.5 var(--mono); color: var(--text); background: var(--soft); border: 1px solid var(--line); border-radius: 4px; padding: 2px 8px; margin: 0; }

/* Accueil */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 10px 0 8px; }
.card { position: relative; display: flex; flex-direction: column; gap: 6px; padding: 22px 22px 20px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); text-decoration: none; background: #fff; transition: border-color 0.15s, box-shadow 0.15s; }
.card::before { content: ""; position: absolute; inset: -1px -1px auto -1px; height: 3px; border-radius: 8px 8px 0 0; background: var(--accent); }
.card:hover { border-color: #b6c2d1; box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06); }
.card h2 { font-size: 24px; margin: 0; }
.card p { color: var(--muted); margin: 4px 0 0; }
.card .tags { margin-top: 10px; }
.card-link { margin-top: 12px; font: 13px/1.4 var(--mono); color: var(--link); }
.home main, .home .top, .home footer { max-width: 980px; }
.common { margin-top: 44px; }
.common h2 { margin-top: 40px; }
.liens-demos { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.liens-demos a { display: flex; align-items: center; gap: 8px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 6px; text-decoration: none; color: var(--ink); font-weight: 550; }
.liens-demos a:hover { border-color: #b6c2d1; background: var(--soft); }
.liens-demos span { font: 12px/1 var(--mono); color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* Pages de groupe */
.layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 44px; }
.layout > .content, .layout > .side { min-width: 0; max-width: 100%; }
.side { position: sticky; top: 20px; align-self: start; max-height: calc(100vh - 40px); overflow: auto; display: flex; flex-direction: column; gap: 1px; padding-right: 8px; }
.side a { display: block; padding: 6px 10px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; font-size: 14px; }
.side a span { font: 12px/1 var(--mono); color: #94a3b8; margin-right: 4px; }
.side a:hover, .side a.active { color: var(--ink); border-left-color: var(--accent); background: var(--soft); }
section { scroll-margin-top: 24px; margin-bottom: 44px; }
section.surface { padding-top: 30px; border-top: 1px solid var(--line); min-width: 0; }
section.surface:first-child { padding-top: 0; border-top: 0; }
.content ul, .content ol { padding-left: 22px; }
.content li { margin: 8px 0; }
.content li::marker { color: #94a3b8; }
.questions li { font-weight: 500; color: var(--ink); }

blockquote { margin: 22px 0; padding: 14px 18px; border-left: 3px solid var(--accent); background: var(--soft); color: var(--ink); font-size: 17px; border-radius: 0 6px 6px 0; }
.notice, .checkpoint { margin: 22px 0; padding: 16px 18px; border-radius: 6px; }
.notice { border: 1px solid var(--line); background: #fff; }
.checkpoint { background: var(--soft); border: 1px solid var(--line); border-left: 3px solid var(--accent); }
.notice > strong, .checkpoint > strong { display: block; font: 600 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin-bottom: 6px; }
.notice p:last-child, .checkpoint p:last-child { margin-bottom: 0; }

.steps { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0 6px; counter-reset: flux; }
.step { padding: 16px 18px; border: 1px solid var(--line); border-radius: 6px; counter-increment: flux; }
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step h3::before { content: counter(flux, decimal-leading-zero) " "; font: 12px/1 var(--mono); color: #94a3b8; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* Tableaux */
.table-wrap { overflow: auto; width: 100%; max-width: 100%; margin: 14px 0; border: 1px solid var(--line); border-radius: 6px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; line-height: 1.6; }
th, td { text-align: left; vertical-align: top; padding: 11px 14px; border-bottom: 1px solid var(--line); }
tr:last-child td, tr:last-child th { border-bottom: 0; }
thead th { font: 600 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); background: var(--soft); }
tbody th { font-weight: 600; color: var(--ink); background: var(--soft); white-space: nowrap; }
td { min-width: 120px; }
td:first-child { color: var(--ink); }
.priorites td:first-child { font: 13px/1.6 var(--mono); white-space: nowrap; }

/* Code */
pre.code { margin: 14px 0; padding: 16px 18px; overflow: auto; max-width: 100%; background: var(--night); color: var(--code-ink); border-radius: 6px; font: 13.5px/1.65 var(--mono); white-space: pre; }
pre.code code { font: inherit; background: none; border: 0; padding: 0; color: inherit; }

/* Blocs dépliables */
details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { position: relative; cursor: pointer; list-style: none; font-weight: 550; color: var(--ink); padding-left: 22px; }
summary::-webkit-details-marker { display: none; }
summary::before { content: "+"; position: absolute; left: 0; top: 0.3em; font: 600 14px/1 var(--mono); color: var(--muted); }
details[open] > summary::before { content: "−"; }
details > p, details > ul, details > .table-wrap, details > pre { margin-top: 12px; }
details details { margin-left: 22px; }
.hints { margin-top: 26px; }
.hints h3 { margin-bottom: 4px; }

/* Boutons */
.button, .secondary { display: inline-block; background: #fff; border: 1px solid #c4ceda; border-radius: 5px; color: var(--ink); padding: 7px 12px; font: 500 13px/1.4 var(--mono); text-decoration: none; cursor: pointer; }
.button:hover, .secondary:hover { background: var(--soft); }
details .copy { margin: 4px 0 6px; }

/* Schémas */
.diagram { margin: 20px 0 8px; padding: 18px; overflow: auto; border: 1px solid var(--line); border-radius: 8px; background-color: #fff; background-image: radial-gradient(#dfe5ec 1px, transparent 1px); background-size: 18px 18px; }
.diagram svg { max-width: 100%; height: auto; min-width: 520px; }
.mermaid:not([data-processed]) { white-space: pre-wrap; font: 13px/1.5 var(--mono); color: var(--muted); }
.diagram-error, .error { color: #b42318; }

/* Avancement */
.count { font: 13px/1.4 var(--mono); color: var(--muted); margin-bottom: 8px; }
.progress { height: 6px; border-radius: 3px; background: #e8edf2; overflow: hidden; margin-bottom: 8px; }
.progress span { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.2s; }
[data-checklist] h3 { font: 600 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin: 22px 0 4px; }
.check { display: flex; align-items: flex-start; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); cursor: pointer; }
input[type=checkbox] { width: 17px; height: 17px; flex-shrink: 0; margin: 4px 0 0; accent-color: var(--accent); }

/* Connexion formateur */
.login { max-width: 480px; margin: 7vh auto; padding: 30px; border: 1px solid var(--line); border-radius: 8px; }
.login h1 { font-size: 28px; }
.login label { display: block; font-weight: 550; margin: 18px 0 6px; }
.login input { font: 16px var(--mono); width: 100%; padding: 11px 12px; border: 1px solid #a9b4c2; border-radius: 5px; margin-bottom: 16px; }
.login button { width: 100%; padding: 10px 12px; background: var(--night); color: #fff; border-color: var(--night); }
.login button:hover { background: #18243a; }

/* Pied de page */
footer { max-width: 1160px; margin: auto; border-top: 1px solid var(--line); padding: 26px 28px 40px; font-size: 14px; color: var(--muted); }
footer p { margin: 0 0 12px; }
.groups { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.groups span { font: 12px/1 var(--mono); color: #94a3b8; margin-right: 4px; }
.trainer-link { display: inline-block; margin-top: 16px; font: 13px/1 var(--mono); }

/* Espace formateur */
.trainer main, .trainer .top { max-width: 1280px; }
.trainer-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 44px; }
.trainer-intro { margin-bottom: 40px; }
.private-note { padding: 14px 18px; margin: 22px 0; border: 1px solid #f1d3a4; background: #fff8ec; border-radius: 6px; font-size: 15px; }
.trainer-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 22px 0; }
.trainer-card { display: flex; flex-direction: column; gap: 2px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 8px; color: var(--text); text-decoration: none; }
.trainer-card:hover { border-color: #b6c2d1; }
.trainer-card span { font: 12px/1.4 var(--mono); color: var(--muted); }
.trainer-card strong { font-size: 21px; }
.trainer-card small { font-size: 14px; color: var(--muted); }
.trainer-tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; }
.trainer-chapter > h2 { font-size: 30px; margin-bottom: 4px; }
.answer { margin: 10px 0; padding: 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.answer > summary { padding: 14px 18px 14px 40px; }
.answer > summary::before { left: 18px; top: 1.2em; }
.answer[open] > summary { background: var(--soft); border-bottom: 1px solid var(--line); }
.answer > summary .num { font: 12px/1 var(--mono); color: var(--muted); }
.answer-body { padding: 4px 20px 18px; }
.answer-body .answer { margin: 14px 0; }
.qa { padding: 4px 0 12px; border-bottom: 1px solid var(--line); }
.qa:last-child { border-bottom: 0; }
.qa h4 { font-size: 16px; margin: 14px 0 6px; }
.qa p { margin: 0; }
.references { font-size: 13px; color: var(--muted); margin-top: 16px; }
.incident-note { padding: 14px 18px; margin: 14px 0; border-left: 3px solid #c2410c; background: #fff7ed; border-radius: 0 6px 6px 0; }
.incident-note strong { display: block; font: 600 12px/1.4 var(--mono); text-transform: uppercase; letter-spacing: 0.07em; color: #9a3412; margin-bottom: 4px; }
.incident-note p { margin: 0; }
.trainer .diagram svg { min-width: 680px; }
.trainer .diagram.wide svg { min-width: 980px; }
.trainer td { overflow-wrap: anywhere; }
.trainer-footer { padding-top: 22px; color: var(--muted); font-size: 13px; }

@media (max-width: 860px) {
  .top { padding: 13px 18px; }
  .top .meta { display: none; }
  main { padding: 26px 18px 48px; }
  h1 { font-size: 32px; }
  .grid, .steps, .trainer-cards { grid-template-columns: 1fr; }
  .layout, .trainer-layout { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .side { position: static; flex-direction: row; flex-wrap: wrap; gap: 6px; max-height: none; padding: 0 0 18px; border-bottom: 1px solid var(--line); }
  .side a { border: 1px solid var(--line); border-radius: 4px; padding: 4px 9px; font-size: 13px; }
  .side a.active { border-color: var(--accent); }
  .diagram { padding: 10px; }
  .login { margin: 24px auto; padding: 22px; }
  h1, h2, h3, p { overflow-wrap: break-word; }
  section { margin-bottom: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .progress span { transition: none; }
}

@media print {
  header, .side, .button, .secondary, .back, .trainer-tools, .trainer-cards { display: none; }
  .layout, .trainer-layout { display: block; }
  pre.code { white-space: pre-wrap; background: #f6f8fa; color: #0f172a; border: 1px solid #e2e8f0; }
  .diagram { overflow: visible; background-image: none; }
  .diagram svg, .trainer .diagram svg, .trainer .diagram.wide svg { min-width: 0; }
  details > *:not(summary) { display: block !important; }
  section { break-inside: avoid-page; }
  h1 { font-size: 30px; }
}