/* Devoir 1 — salle d'examen. Tout est limité à .d1-app pour ne pas toucher au thème. */
.d1-app{
  --d1-bg:#F3F5F8; --d1-surface:#FFFFFF; --d1-ink:#152233; --d1-muted:#5A6878; --d1-line:#D8DEE6;
  --d1-accent:#1C5FD4; --d1-accent-ink:#FFFFFF; --d1-accent-soft:#E3ECFB;
  --d1-ok:#1D7A4C; --d1-ok-soft:#E1F3E9; --d1-warn:#A35A00; --d1-warn-soft:#FBEFD9; --d1-bad:#B42318; --d1-bad-soft:#FBE4E1;
  --d1-code-bg:#0F1A2A; --d1-code-ink:#DCE6F2;
  --d1-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --d1-body:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  --d1-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  font-family:var(--d1-body); font-size:15px; line-height:1.55; color:var(--d1-ink);
  background:var(--d1-bg); border-radius:14px; padding:clamp(14px,3vw,28px);
  display:flex; flex-direction:column; gap:22px; max-width:1180px; margin:0 auto; box-sizing:border-box;
}
@media (prefers-color-scheme: dark){ .d1-app.d1-auto-dark{
  --d1-bg:#0E141C; --d1-surface:#161F2B; --d1-ink:#E4EAF2; --d1-muted:#93A1B2; --d1-line:#2A3646;
  --d1-accent:#6E9EF5; --d1-accent-ink:#0B1220; --d1-accent-soft:#1B2A44;
  --d1-ok:#5CCB91; --d1-ok-soft:#14301F; --d1-warn:#F0B35A; --d1-warn-soft:#33260F; --d1-bad:#F2877D; --d1-bad-soft:#3A1915; } }
.d1-app *,.d1-app *::before,.d1-app *::after{box-sizing:border-box}
.d1-app [hidden]{display:none!important}
.d1-app h2,.d1-app h3{font-family:var(--d1-display);line-height:1.15;margin:0;text-wrap:balance;color:var(--d1-ink);letter-spacing:0}
.d1-app h3{font-size:20px}
.d1-app p{margin:0}
.d1-app code{font-family:var(--d1-mono);font-size:.92em;background:var(--d1-accent-soft);padding:1px 5px;border-radius:4px;color:var(--d1-ink)}
.d1-app button,.d1-app input,.d1-app textarea,.d1-app select{font:inherit;color:inherit;margin:0}
.d1-app :focus-visible{outline:2px solid var(--d1-accent);outline-offset:2px}

.d1-mast{display:flex;flex-wrap:wrap;gap:10px 24px;align-items:flex-end;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--d1-line)}
.d1-eyebrow{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--d1-muted);font-weight:600}
.d1-title{font-size:clamp(24px,4vw,34px)!important;margin-top:4px!important}
.d1-sub{color:var(--d1-muted)}
.d1-tag{font-family:var(--d1-mono);font-size:12.5px;color:var(--d1-muted)}

.d1-view{display:flex;flex-direction:column;gap:20px}
.d1-card{background:var(--d1-surface);border:1px solid var(--d1-line);border-radius:10px;padding:20px}
.d1-narrow{max-width:760px}
.d1-stack{display:flex;flex-direction:column;gap:14px}
.d1-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.d1-end{justify-content:flex-end}
.d1-muted{color:var(--d1-muted)}
.d1-small{font-size:13px}

.d1-btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--d1-line);background:var(--d1-surface);color:var(--d1-ink);border-radius:7px;padding:9px 16px;cursor:pointer;font-weight:500;line-height:1.3;text-decoration:none;box-shadow:none;text-transform:none;letter-spacing:0}
.d1-btn:hover{border-color:var(--d1-accent);background:var(--d1-surface);color:var(--d1-ink)}
.d1-btn.d1-primary{background:var(--d1-accent);border-color:var(--d1-accent);color:var(--d1-accent-ink)}
.d1-btn.d1-primary:hover{filter:brightness(1.07);background:var(--d1-accent);color:var(--d1-accent-ink)}
.d1-btn:disabled{opacity:.5;cursor:not-allowed}
.d1-f{display:flex;flex-direction:column;gap:6px;font-weight:500}
.d1-t{border:1px solid var(--d1-line);border-radius:7px;padding:10px 12px;background:var(--d1-bg);width:100%;max-width:100%}

.d1-rules{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.d1-rule{border-top:2px solid var(--d1-accent);padding-top:10px;display:flex;flex-direction:column;gap:4px}
.d1-rule b{font-family:var(--d1-display);font-size:17px}

.d1-notice{border-radius:8px;padding:12px 14px;background:var(--d1-warn-soft);border:1px solid var(--d1-warn)}
.d1-notice.d1-bad{background:var(--d1-bad-soft);border-color:var(--d1-bad)}

.d1-bar{position:sticky;top:0;z-index:50;background:var(--d1-surface);border:1px solid var(--d1-line);border-radius:10px;padding:10px 14px;display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;justify-content:space-between;box-shadow:0 6px 20px -14px rgba(10,20,40,.4)}
body.admin-bar .d1-bar{top:32px}
@media (max-width:782px){ body.admin-bar .d1-bar{top:46px} }
.d1-who{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.d1-who b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.d1-clock{font-family:var(--d1-mono);font-size:22px;font-weight:500;font-variant-numeric:tabular-nums;padding:4px 12px;border-radius:7px;background:var(--d1-accent-soft)}
.d1-clock.d1-low{background:var(--d1-warn-soft);color:var(--d1-warn)}
.d1-clock.d1-crit{background:var(--d1-bad-soft);color:var(--d1-bad)}
.d1-save{font-size:13px;color:var(--d1-muted)}

.d1-tabs{display:flex;gap:4px;border-bottom:1px solid var(--d1-line);overflow-x:auto}
.d1-tabs button{border:0;background:none;padding:10px 14px;cursor:pointer;color:var(--d1-muted);font-weight:500;border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap;border-radius:0;box-shadow:none;text-transform:none}
.d1-tabs button[aria-selected="true"]{color:var(--d1-ink);border-bottom-color:var(--d1-accent)}
.d1-tabs button:hover{background:none;color:var(--d1-ink)}
.d1-pts{font-family:var(--d1-mono);font-size:12px;color:var(--d1-muted);font-weight:400}

.d1-sec-h{display:flex;justify-content:space-between;gap:12px;align-items:baseline;flex-wrap:wrap}
.d1-q{display:grid;grid-template-columns:40px 1fr;gap:4px 10px}
.d1-num{font-family:var(--d1-display);font-weight:700;font-size:18px;color:var(--d1-accent)}
.d1-qbody{min-width:0;display:flex;flex-direction:column;gap:8px}
.d1-qbody textarea{width:100%;min-height:110px;resize:vertical;border:1px solid var(--d1-line);border-radius:7px;padding:10px 12px;background:var(--d1-bg);line-height:1.5}
.d1-qtext{font-weight:500}

.d1-reqs{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:4px 20px;margin:0;padding:0;list-style:none}
.d1-reqs li{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--d1-line);margin:0}

.d1-editor{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:960px){ .d1-editor{grid-template-columns:minmax(0,1fr) minmax(0,1fr)} }
.d1-pane{display:flex;flex-direction:column;min-width:0;border:1px solid var(--d1-line);border-radius:10px;overflow:hidden;background:var(--d1-surface)}
.d1-pane-h{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px 6px 4px;border-bottom:1px solid var(--d1-line);flex-wrap:wrap}
.d1-filetabs{display:flex;gap:2px}
.d1-filetabs button,.d1-ft-static{border:0;background:none;padding:6px 12px;border-radius:6px;cursor:pointer;font-family:var(--d1-mono);font-size:13px;color:var(--d1-muted);box-shadow:none;text-transform:none}
.d1-filetabs button[aria-selected="true"],.d1-ft-static{background:var(--d1-accent-soft);color:var(--d1-ink)}
.d1-ft-static{cursor:default}
textarea.d1-code{display:block;width:100%;height:560px;border:0;border-radius:0;resize:vertical;padding:14px;background:var(--d1-code-bg);color:var(--d1-code-ink);font-family:var(--d1-mono);font-size:13.5px;line-height:1.6;tab-size:2;white-space:pre;overflow:auto;overflow-wrap:normal}
.d1-preview{display:block;width:100%;height:560px;border:0;background:#fff}

.d1-overlay{position:fixed;inset:0;background:rgba(10,16,26,.55);display:flex;align-items:center;justify-content:center;padding:16px;z-index:100000}
.d1-dialog{background:var(--d1-surface);border-radius:12px;padding:22px;max-width:440px;width:100%;display:flex;flex-direction:column;gap:14px;border:1px solid var(--d1-line)}

.d1-grade{display:flex;flex-wrap:wrap;gap:16px 32px;align-items:center;padding:16px 18px;border-radius:10px;background:var(--d1-accent-soft)}
.d1-grade-total{font-family:var(--d1-display);font-size:52px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.d1-grade-total small{font-size:20px;color:var(--d1-muted);margin-left:4px;font-weight:500}
.d1-grade-parts{display:flex;gap:28px}
.d1-grade-parts div{display:flex;flex-direction:column}
.d1-grade-parts b{font-family:var(--d1-mono);font-size:17px;font-weight:500}
@media (prefers-reduced-motion:reduce){ .d1-app *{transition:none!important;animation:none!important} }