/* CodeLab — style clair et épuré (Google / Microsoft / Apple) */
:root {
  --bg: #f6f8fb;
  --bg-2: #ffffff;
  --surface: #ffffff;
  --surface-2: #f1f4f9;
  --border: #e3e7ee;
  --border-2: #d2d8e1;
  --text: #1f2328;
  --muted: #5f6b7a;
  --faint: #8a94a3;
  --accent: #1a73e8;
  --accent-2: #1765cc;
  --accent-ink: #ffffff;
  --accent-soft: rgba(26, 115, 232, .09);
  --ok: #188038;
  --ok-soft: rgba(24, 128, 56, .09);
  --ko: #d93025;
  --ko-soft: rgba(217, 48, 37, .08);
  --info: #1967d2;
  --js: #9a6700;
  --py: #1967d2;
  --web: #c5221f;
  --shadow: 0 1px 2px rgba(60, 64, 67, .10), 0 1px 3px 1px rgba(60, 64, 67, .06);
  --shadow-lg: 0 4px 12px rgba(60, 64, 67, .12), 0 1px 3px rgba(60, 64, 67, .08);
  --radius: 14px;
  --radius-sm: 9px;
  --mono: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.08rem; }
p { margin: 0 0 1em; }
code, pre, kbd { font-family: var(--mono); }
code { background: var(--surface-2); border: 1px solid var(--border); padding: .08em .38em; border-radius: 6px; font-size: .9em; }
pre code { background: none; border: 0; padding: 0; }
hr { border: 0; border-top: 1px solid var(--border); margin: 24px 0; }
.muted { color: var(--muted); }
.center { text-align: center; }
.inline { display: inline; }
.hidden { display: none !important; }
::selection { background: var(--accent); color: var(--accent-ink); }

/* ---------- Barre du haut ---------- */
.topbar { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--border); }
.topbar-inner { max-width: 1280px; margin: 0 auto; padding: 0 20px; height: 62px; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.12rem; color: var(--text); letter-spacing: -.02em; }
.brand:hover { color: var(--text); }
.brand-logo { width: 34px; height: 34px; display: grid; place-items: center; background: var(--accent-soft); border: 1px solid rgba(26, 115, 232, .25); border-radius: 10px; font-size: 18px; }
.mainnav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.mainnav > a, .mainnav .linklike { color: var(--muted); padding: 8px 12px; border-radius: 9px; font-weight: 500; font-size: .95rem; }
.mainnav > a:hover, .mainnav .linklike:hover { color: var(--text); background: var(--surface-2); }
.mainnav > a.active { color: var(--accent); background: #e8f0fe; }
.mainnav > a.btn { color: var(--accent-ink); }
.nav-user { display: flex; align-items: center; gap: 8px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 700; font-size: .85rem; flex: none; }
.xp-pill { font-size: .75rem; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 2px 8px; border-radius: 99px; }
.linklike { background: none; border: 0; font: inherit; cursor: pointer; }
.nav-toggle { display: none; margin-left: auto; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 9px; width: 40px; height: 38px; font-size: 18px; cursor: pointer; }

.subnav { border-bottom: 1px solid var(--border); background: #fff; }
.subnav-inner { max-width: 1280px; margin: 0 auto; padding: 0 20px; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.subnav a { color: var(--muted); padding: 12px 14px; white-space: nowrap; border-bottom: 2px solid transparent; font-size: .92rem; font-weight: 500; }
.subnav a:hover { color: var(--text); }
.subnav a.active { color: var(--text); border-bottom-color: var(--accent); }

/* ---------- Mise en page ---------- */
main { flex: 1; width: 100%; }
.container { max-width: 1120px; margin: 0 auto; padding: 32px 20px 64px; }
.container-wide { max-width: 1440px; margin: 0 auto; padding: 20px 20px 40px; }
.footer { border-top: 1px solid var(--border); color: var(--faint); font-size: .85rem; padding: 18px 20px; text-align: center; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.page-head h1 { margin: 0; }
.page-head p { margin: 6px 0 0; }
.section { margin-top: 40px; }
.section-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.section-title h2 { margin: 0; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-2 { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.grid-3 { display: grid; gap: 14px; grid-template-columns: repeat(3, 1fr); }
.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ---------- Cartes ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
a.card { color: var(--text); display: block; transition: border-color .15s, transform .15s, background .15s; }
a.card:hover { border-color: var(--border-2); box-shadow: var(--shadow-lg); transform: translateY(-2px); color: var(--text); }

.item-card { display: flex !important; flex-direction: column; gap: 6px; min-height: 172px; position: relative; }
.item-card h3 { margin: 6px 0 0; }
.item-card p { color: var(--muted); font-size: .92rem; margin: 0; flex: 1; }
.item-card-top, .item-card-foot { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.item-card-foot { margin-top: 8px; font-size: .85rem; }
.item-card.is-done { border-color: rgba(24, 128, 56, .35); }
.type-tag { font-size: .78rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.lang-tag { font-family: var(--mono); font-size: .72rem; padding: 1px 7px; border-radius: 6px; border: 1px solid var(--border-2); color: var(--muted); }
.lang-javascript { color: var(--js); border-color: rgba(154, 103, 0, .35); }
.lang-python { color: var(--py); border-color: rgba(25, 103, 210, .35); }
.lang-html { color: var(--web); border-color: rgba(197, 34, 31, .35); }
.diff { font-size: .7rem; letter-spacing: 2px; color: #f9ab00; }
.xp { color: var(--accent); font-size: .8rem; font-weight: 600; }
.status { margin-left: auto; font-size: .78rem; font-weight: 600; padding: 2px 9px; border-radius: 99px; }
.status-done { color: var(--ok); background: var(--ok-soft); }
.status-progress { color: var(--accent); background: var(--accent-soft); }

.cat-card { display: flex !important; gap: 16px; align-items: flex-start; }
.cat-icon { font-size: 30px; width: 56px; height: 56px; flex: none; display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--border); border-radius: 14px; }
.cat-card h3 { margin: 2px 0 4px; }
.cat-card p { color: var(--muted); font-size: .92rem; margin: 0 0 10px; }
.cat-body { flex: 1; min-width: 0; }

.progress { height: 8px; background: var(--surface-2); border-radius: 99px; overflow: hidden; border: 1px solid var(--border); }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; transition: width .5s; }
.progress-label { display: flex; justify-content: space-between; font-size: .8rem; color: var(--muted); margin-top: 6px; }

/* ---------- Hero / accueil ---------- */
.hero { padding: 56px 0 24px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -.03em; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #1a73e8, #a142f4); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 34em; }
.hero-code { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; font-family: var(--mono); font-size: .92rem; line-height: 1.7; white-space: pre; overflow: auto; }
.hero-code { box-shadow: var(--shadow); }
.hero-code .k { color: #a626a4; } .hero-code .s { color: var(--ok); } .hero-code .c { color: var(--faint); } .hero-code .f { color: var(--accent); }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 32px; }
.feature .em { font-size: 26px; }
.feature h3 { margin: 10px 0 6px; }
.feature p { color: var(--muted); margin: 0; font-size: .95rem; }

.welcome { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; }
.level-box { display: flex; gap: 16px; align-items: center; }
.level-badge { width: 64px; height: 64px; border-radius: 18px; background: linear-gradient(135deg, #1a73e8, #4f8ff7); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 1.6rem; flex: none; }
.level-meta { min-width: 220px; }
.level-meta strong { display: block; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 18px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat b { display: block; font-size: 1.6rem; font-weight: 700; color: var(--text); }
.stat span { color: var(--muted); font-size: .85rem; }

/* ---------- Boutons / formulaires ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); border-radius: 999px; padding: 9px 18px; font: 600 .95rem var(--sans); cursor: pointer; transition: background .15s, transform .05s, opacity .15s; white-space: nowrap; }
.btn:hover { background: var(--accent-2); color: var(--accent-ink); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-sm { padding: 5px 12px; font-size: .85rem; }
.btn-lg { padding: 12px 22px; font-size: 1.02rem; }
.btn-block { width: 100%; }
.btn-ghost { background: #fff; color: var(--accent); border-color: var(--border-2); }
.btn-ghost:hover { background: var(--accent-soft); color: var(--accent-2); }
.btn-ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn-ok:hover { background: #137333; color: #fff; }
.btn-danger { background: #fff; color: var(--ko); border-color: #f5c6c2; }
.btn-danger:hover { background: var(--ko-soft); color: var(--ko); }
.btn kbd { font-size: .7rem; opacity: .7; }

.form label { display: block; font-weight: 500; font-size: .92rem; margin-bottom: 14px; }
.form label > input, .form label > select, .form label > textarea { margin-top: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input:not([type]), select, textarea {
  width: 100%; background: #fff; border: 1px solid var(--border-2); color: var(--text); border-radius: 10px; padding: 10px 12px; font: 400 .95rem var(--sans); transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
textarea { resize: vertical; min-height: 90px; line-height: 1.5; }
textarea.code { font-family: var(--mono); font-size: .85rem; tab-size: 4; white-space: pre; min-height: 140px; }
.form .check { display: flex; align-items: center; gap: 10px; font-weight: 400; }
.form .check input { width: 18px; height: 18px; accent-color: var(--accent); margin: 0; }
.help { display: block; font-size: .82rem; color: var(--muted); font-weight: 400; margin-top: 5px; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 18px 6px; margin: 0 0 18px; }
legend { padding: 0 8px; font-weight: 600; color: var(--accent); }

.flash { padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; border: 1px solid; font-size: .95rem; }
.flash-success { background: #e6f4ea; border-color: #ceead6; color: #137333; }
.flash-error { background: #fce8e6; border-color: #fad2cf; color: #c5221f; }
.flash-info { background: #e8f0fe; border-color: #d2e3fc; color: #1967d2; }

/* ---------- Auth ---------- */
.auth { display: grid; place-items: center; padding: 30px 0; }
.auth-card { width: 100%; max-width: 420px; padding: 32px; }
.auth-card h1 { text-align: center; font-size: 1.6rem; }
.auth-emoji { text-align: center; font-size: 42px; margin-bottom: 8px; }
.install { max-width: 760px; margin: 0 auto; }

/* ---------- Filtres ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; align-items: center; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 99px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); font-size: .9rem; font-weight: 500; }
.chip:hover { color: var(--text); border-color: var(--border-2); }
.chip.active { background: #e8f0fe; border-color: #d2e3fc; color: var(--accent); }
.filters select { width: auto; padding: 7px 12px; border-radius: 99px; }

.empty-state { text-align: center; padding: 60px 20px; }
.empty-emoji { font-size: 54px; margin-bottom: 8px; }

/* ---------- Contenu markdown ---------- */
.md { font-size: .98rem; }
.md h2, .md h3, .md h4 { margin-top: 1.2em; }
.md ul, .md ol { padding-left: 1.4em; margin: 0 0 1em; }
.md li { margin: .25em 0; }
.md-code { background: #f6f8fa; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; overflow-x: auto; font-size: .86rem; line-height: 1.6; margin: 0 0 1em; }
.callout { background: var(--accent-soft); border-left: 3px solid var(--accent); padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 0 0 1em; font-size: .94rem; }

/* ---------- Espace de travail (exercice / étape de TP) ---------- */
.ws { display: grid; grid-template-columns: minmax(320px, 420px) 1fr; gap: 16px; height: calc(100vh - 62px - 40px - 20px); min-height: 560px; }
.ws-left { display: flex; flex-direction: column; min-height: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.ws-left-scroll { padding: 20px 22px; overflow-y: auto; flex: 1; }
.ws-crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 10px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.ws-crumbs a { color: var(--muted); }
.ws-crumbs a:hover { color: var(--text); }
.ws-title { font-size: 1.45rem; margin-bottom: 8px; }
.ws-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 18px; flex-wrap: wrap; }
.ws-nav { border-top: 1px solid var(--border); padding: 12px 16px; display: flex; gap: 8px; justify-content: space-between; background: var(--bg-2); }
.ws-right { display: grid; grid-template-rows: auto minmax(200px, 1fr) minmax(170px, 38%); gap: 0; min-height: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.ws-toolbar { display: flex; gap: 8px; align-items: center; padding: 10px 12px; border-bottom: 1px solid var(--border); flex-wrap: wrap; background: var(--bg-2); }
.ws-toolbar .file { font-family: var(--mono); font-size: .82rem; color: var(--muted); margin-right: auto; display: flex; align-items: center; gap: 8px; }
.ws-editor { min-height: 0; position: relative; overflow: hidden; }
.ws-editor textarea { width: 100%; height: 100%; border: 0; border-radius: 0; resize: none; font-family: var(--mono); font-size: 14px; background: #fff; padding: 14px; }
.ws-output { border-top: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; }
.tabs { display: flex; gap: 2px; padding: 0 8px; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.tab { background: none; border: 0; color: var(--muted); padding: 9px 12px; font: 500 .86rem var(--sans); cursor: pointer; border-bottom: 2px solid transparent; display: flex; align-items: center; gap: 6px; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tab .count { font-family: var(--mono); font-size: .72rem; padding: 0 6px; border-radius: 99px; background: var(--surface-2); }
.tab .count.ok { color: var(--ok); background: var(--ok-soft); }
.tab .count.ko { color: var(--ko); background: var(--ko-soft); }
.panel { flex: 1; min-height: 0; overflow: auto; display: none; }
.panel.active { display: block; }
.console { font-family: var(--mono); font-size: .86rem; padding: 12px 14px; white-space: pre-wrap; word-break: break-word; line-height: 1.6; }
.console .line { border-bottom: 1px dashed rgba(0, 0, 0, .05); }
.console .err { color: var(--ko); }
.console .sys { color: var(--faint); font-style: italic; }
.console .friendly { color: var(--accent); font-family: var(--sans); font-style: normal; font-size: .9rem; margin-top: 6px; }
.panel-preview { background: #fff; }
.panel-preview iframe { width: 100%; height: 100%; border: 0; display: block; background: #fff; }
.tests { list-style: none; margin: 0; padding: 10px 14px; }
.tests li { display: flex; gap: 10px; align-items: flex-start; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: .92rem; }
.tests li:last-child { border-bottom: 0; }
.tests .ic { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; flex: none; font-size: .75rem; font-weight: 700; }
.tests .ok .ic { background: var(--ok-soft); color: var(--ok); }
.tests .ko .ic { background: var(--ko-soft); color: var(--ko); }
.diff-box { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 14px 14px; }
.diff-box pre { margin: 4px 0 0; background: #f6f8fa; border: 1px solid var(--border); border-radius: 8px; padding: 10px; font-size: .82rem; white-space: pre-wrap; min-height: 40px; }
.diff-box small { color: var(--muted); font-weight: 600; }

.hint-list { list-style: none; padding: 0; margin: 0 0 12px; }
.hint-list li { background: var(--accent-soft); border: 1px solid #d2e3fc; border-radius: 10px; padding: 10px 12px; margin-bottom: 8px; font-size: .92rem; animation: pop .25s ease; }
.ws-box { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 16px; }
.ws-box h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 10px; }
.solution pre { background: #f6f8fa; border: 1px solid var(--border); border-radius: 10px; padding: 12px; font-size: .84rem; overflow-x: auto; }

.success-banner { display: none; margin: 0; padding: 14px 16px; background: var(--ok-soft); border-bottom: 1px solid #ceead6; align-items: center; gap: 12px; flex-wrap: wrap; }
.success-banner.show { display: flex; animation: pop .35s ease; }
.success-banner .big { font-size: 26px; }
.success-banner strong { color: var(--ok); }
.loading-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1s infinite; }

/* CodeMirror : thème clair */
.CodeMirror { height: 100%; font-family: var(--mono); font-size: 14px; line-height: 1.6; background: #fff; color: #1f2328; }
.cm-s-codelab .CodeMirror-gutters { background: #f8f9fb; border-right: 1px solid var(--border); }
.cm-s-codelab .CodeMirror-linenumber { color: #9aa3af; }
.cm-s-codelab .CodeMirror-cursor { border-left: 2px solid var(--accent); }
.cm-s-codelab .CodeMirror-selected, .cm-s-codelab .CodeMirror-focused .CodeMirror-selected { background: #d2e3fc; }
.cm-s-codelab .CodeMirror-matchingbracket { color: var(--accent) !important; background: #e8f0fe; }
.cm-s-codelab .cm-keyword { color: #a626a4; }
.cm-s-codelab .cm-def { color: #795e26; }
.cm-s-codelab .cm-variable { color: #1f2328; }
.cm-s-codelab .cm-variable-2, .cm-s-codelab .cm-variable-3 { color: #001080; }
.cm-s-codelab .cm-property { color: #0b57d0; }
.cm-s-codelab .cm-string, .cm-s-codelab .cm-string-2 { color: #188038; }
.cm-s-codelab .cm-number, .cm-s-codelab .cm-atom { color: #b06000; }
.cm-s-codelab .cm-comment { color: #8a94a3; font-style: italic; }
.cm-s-codelab .cm-builtin { color: #0b57d0; }
.cm-s-codelab .cm-operator { color: #5f6b7a; }
.cm-s-codelab .cm-tag { color: #c5221f; }
.cm-s-codelab .cm-attribute { color: #b06000; }
.cm-s-codelab .cm-qualifier { color: #795e26; }
.cm-s-codelab .cm-meta { color: #5f6b7a; }

/* ---------- TP ---------- */
.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; }
.steps li { margin-bottom: 8px; }
.steps a, .steps .locked { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.steps a:hover { border-color: var(--border-2); background: var(--surface-2); color: var(--text); }
.steps .locked { color: var(--faint); }
.steps .num { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: .85rem; background: var(--surface-2); border: 1px solid var(--border-2); flex: none; }
.steps .done .num { background: var(--ok); color: #fff; border-color: var(--ok); }
.steps .current a { border-color: var(--accent); }
.step-dots { display: flex; gap: 6px; align-items: center; }
.step-dots a, .step-dots span { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: .76rem; border: 1px solid var(--border-2); color: var(--muted); }
.step-dots .done { background: var(--ok-soft); color: var(--ok); border-color: rgba(24, 128, 56, .45); }
.step-dots .current { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.step-dots .locked { opacity: .45; }

/* ---------- Quiz ---------- */
.quiz { max-width: 780px; margin: 0 auto; }
.question { margin-bottom: 18px; }
.question-head { display: flex; gap: 12px; align-items: baseline; margin-bottom: 10px; }
.question-num { font-family: var(--mono); color: var(--accent); font-size: .9rem; flex: none; }
.question .md p:last-child { margin-bottom: 0; }
.options { display: grid; gap: 8px; margin-top: 12px; }
.option { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 11px; border: 1px solid var(--border-2); background: #fff; cursor: pointer; transition: border-color .12s, background .12s; }
.option:hover { border-color: var(--faint); }
.option input { accent-color: var(--accent); width: 18px; height: 18px; margin: 0; flex: none; }
.option:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.option code { white-space: pre-wrap; }
.option.correct { border-color: rgba(24, 128, 56, .55); background: var(--ok-soft); }
.option.wrong { border-color: rgba(217, 48, 37, .55); background: var(--ko-soft); }
.option .mark { margin-left: auto; font-weight: 700; }
.explain { margin-top: 12px; font-size: .93rem; color: var(--muted); border-left: 3px solid var(--border-2); padding-left: 12px; }
.score-card { text-align: center; padding: 32px; }
.score-big { font-size: 3.6rem; font-weight: 700; line-height: 1; letter-spacing: -.03em; }
.score-big.ok { color: var(--ok); } .score-big.ko { color: #e37400; }

/* ---------- Profil / classement ---------- */
.badges { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.badge { text-align: center; padding: 16px 10px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); }
.badge .em { font-size: 32px; }
.badge strong { display: block; margin-top: 6px; font-size: .92rem; }
.badge span { color: var(--muted); font-size: .8rem; }
.badge.locked { opacity: .35; filter: grayscale(1); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
table.table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.table th, .table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; background: var(--bg-2); }
.table tr:last-child td { border-bottom: 0; }
.table tr.me td { background: var(--accent-soft); }
.table .num { font-family: var(--mono); }
.table .actions { text-align: right; white-space: nowrap; }
.table .actions form { display: inline; }
.rank { font-family: var(--mono); font-weight: 500; width: 46px; }
.pill { display: inline-block; font-size: .75rem; padding: 2px 9px; border-radius: 99px; background: var(--surface-2); border: 1px solid var(--border-2); color: var(--muted); }
.pill-ok { color: var(--ok); background: #e6f4ea; border-color: #ceead6; }
.pill-accent { color: var(--accent); background: #e8f0fe; border-color: #d2e3fc; }
.pill-ko { color: var(--ko); background: #fce8e6; border-color: #fad2cf; }

/* ---------- Admin : éditeurs dynamiques ---------- */
.repeat-item { border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 14px; background: #fafbfd; }
.repeat-head { display: flex; gap: 8px; align-items: center; margin-bottom: 12px; }
.repeat-head .idx { font-family: var(--mono); color: var(--accent); font-weight: 500; }
.repeat-head .spacer { flex: 1; }
.opt-row { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; margin-bottom: 8px; }
.opt-row input[type=checkbox] { width: 20px; height: 20px; accent-color: var(--ok); }
.test-result { margin-top: 10px; font-size: .9rem; }
.test-result .tests { padding: 6px 0; }
.admin-preview-frame { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; border: 0; }
.sticky-actions { position: sticky; bottom: 0; background: linear-gradient(rgba(246, 248, 251, 0), var(--bg) 30%); padding: 18px 0 8px; display: flex; gap: 10px; z-index: 5; }
.cheatsheet { font-size: .86rem; color: var(--muted); }
.cheatsheet code { font-size: .82rem; }
details.card > summary { cursor: pointer; font-weight: 600; }

@keyframes pop { from { transform: scale(.96); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@keyframes pulse { 0%, 100% { opacity: .3; } 50% { opacity: 1; } }

.confetti { position: fixed; top: -10px; width: 9px; height: 14px; z-index: 999; pointer-events: none; animation: fall linear forwards; border-radius: 2px; }
@keyframes fall { to { transform: translateY(105vh) rotate(720deg); } }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .ws { grid-template-columns: 1fr; height: auto; }
  .ws-left { max-height: none; }
  .ws-right { height: 80vh; min-height: 520px; }
  .hero { grid-template-columns: 1fr; padding-top: 28px; }
  .features, .grid-3 { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .welcome { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .mainnav:not(.mainnav-guest) { display: none; position: absolute; top: 62px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg-2); border-bottom: 1px solid var(--border); padding: 10px 16px 16px; }
  .mainnav.open { display: flex; }
  .mainnav-guest { margin-left: auto; }
  .grid-2, .diff-box { grid-template-columns: 1fr; }
  .container { padding: 22px 16px 48px; }
  .container-wide { padding: 12px 12px 30px; }
  .topbar-inner { padding: 0 16px; }
  .ws-toolbar .btn kbd { display: none; }
  .table .hide-sm { display: none; }
}