/* DBD Base 1.5 — canonical UI system */
:root{
  --page:#0b0d0e;
  --surface:#111416;
  --surface-2:#161a1d;
  --surface-3:#0e1113;
  --border:#30363b;
  --border-soft:#20262a;
  --text:#f1eee7;
  --muted:#9aa1a6;
  --faint:#687078;
  --accent:#f5b400;
  --accent-strong:#ffc21a;
  --accent-ink:#251b00;
  --correct:#5bd072;
  --correct-bg:#102518;
  --wrong:#ef6767;
  --wrong-bg:#2a1415;
  --blue:#7698ff;
  --blue-bg:#151d36;
  --orange:#e39b43;
  --radius-lg:22px;
  --radius-md:15px;
  --radius-sm:11px;
  --shadow:0 18px 56px rgba(0,0,0,.18);
  color-scheme:dark;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
html[data-theme="light"]{
  --page:#e8e5de;
  --surface:#f2eee6;
  --surface-2:#e8e4dc;
  --surface-3:#f7f3eb;
  --border:#c9c1b5;
  --border-soft:#d8d1c6;
  --text:#30322f;
  --muted:#6d716c;
  --faint:#8b8c84;
  --accent:#bc7d00;
  --accent-strong:#ca8b05;
  --accent-ink:#211800;
  --correct:#317c48;
  --correct-bg:#e0ebe1;
  --wrong:#bb4944;
  --wrong-bg:#f0ddda;
  --blue:#4865ad;
  --blue-bg:#e0e5f2;
  --orange:#9a632a;
  --shadow:0 14px 42px rgba(57,48,35,.08);
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--page);color:var(--text)}
body{font-size:16px;line-height:1.4;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
a{color:inherit}
.hazard{height:12px;background:repeating-linear-gradient(135deg,var(--accent-strong) 0 14px,#171717 14px 28px);box-shadow:none}
.app-header{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px max(16px,env(safe-area-inset-left)) 18px max(16px,env(safe-area-inset-right));background:color-mix(in srgb,var(--page) 94%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--border-soft)}
.brand{border:0;background:transparent;color:var(--accent);display:flex;align-items:flex-start;gap:4px;padding:0;font-weight:950;letter-spacing:.02em}
.brand-dbd{font-size:2rem;line-height:.9}.brand sup{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.62rem;line-height:1;letter-spacing:.04em;color:color-mix(in srgb,var(--accent) 78%,var(--muted));margin-top:-3px}
#navigation{display:flex;gap:7px;align-items:center}
.nav-btn{min-height:46px;border:1px solid var(--border);border-radius:14px;background:var(--surface);color:var(--muted);padding:0 14px;font-size:.74rem;font-weight:850;letter-spacing:.02em;text-transform:uppercase}
.nav-btn.icon{width:48px;padding:0;font-size:1rem}.nav-btn.active{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
main{width:min(100%,880px);margin:0 auto;padding:28px 16px 84px}
.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:22px}.page-head h1{font-size:clamp(2.25rem,8vw,3.65rem);line-height:.95;margin:6px 0 10px;letter-spacing:-.045em}.page-head p{margin:0;color:var(--muted);max-width:640px}.eyebrow{color:var(--accent);text-transform:uppercase;font-weight:900;letter-spacing:.035em;font-size:.76rem}
.panel,.hero,.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:none}
.hero{padding:26px}.hero h1{font-size:clamp(2rem,7vw,3rem);line-height:.95;margin:8px 0 8px;letter-spacing:-.04em}.hero p{margin:0;color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.actions.stack{flex-direction:column}.btn{min-height:48px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);color:var(--text);padding:0 16px;font-weight:850;letter-spacing:.015em}.btn:hover{border-color:color-mix(in srgb,var(--border) 55%,var(--text))}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.danger{background:transparent;border-color:color-mix(in srgb,var(--wrong) 65%,var(--border));color:var(--wrong)}.btn.ghost{background:transparent}.btn.small{min-height:38px;padding:0 12px;font-size:.76rem}.btn.block{width:100%}.btn:disabled{opacity:.45;cursor:not-allowed}
.home-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.home-actions .btn{min-height:76px;font-size:1rem}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}.stat{background:var(--surface-2);border:1px solid var(--border);border-radius:13px;padding:11px 12px}.stat strong{display:block;font-size:1.15rem;color:var(--accent)}.stat span{color:var(--muted);font-size:.7rem;text-transform:uppercase;font-weight:800}
.section{margin-top:28px}.section-title{font-size:.72rem;color:var(--muted);text-transform:uppercase;font-weight:900;letter-spacing:.045em;margin:0 0 10px}
.session-row,.subject-row,.history-row{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 17px;color:var(--text);margin-bottom:10px;box-shadow:none}
.session-row:hover,.subject-row:hover,.history-row:hover{background:var(--surface-2)}.session-row strong,.subject-row strong,.history-row strong{display:block;font-size:.93rem;line-height:1.25}.session-row small,.subject-row small,.history-row small{display:block;color:var(--muted);margin-top:4px}.score{text-align:right;white-space:nowrap}.score strong{font-size:1.08rem}.score small{text-transform:uppercase;font-size:.65rem;letter-spacing:.05em}
.history-right{display:flex;align-items:center;gap:6px}.more-wrap{position:relative}.more-btn{width:36px;height:36px;border:0;background:transparent;color:var(--muted);display:grid;place-items:center;border-radius:999px;font-size:1.08rem;line-height:1;padding:0}.more-btn:hover{background:var(--surface-2);color:var(--text)}.more-menu{display:flex;justify-content:flex-end;gap:6px;padding:0 8px 10px}.more-menu .btn{min-height:34px;font-size:.65rem;border-radius:999px}
.date-label{font-size:.68rem;color:var(--faint);text-transform:uppercase;font-weight:900;letter-spacing:.04em;margin:24px 4px 10px}
.aliases{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.alias{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;border:1px solid color-mix(in srgb,var(--accent) 40%,var(--border));color:color-mix(in srgb,var(--accent) 70%,var(--text));background:color-mix(in srgb,var(--accent) 8%,var(--surface));border-radius:999px;padding:4px 8px;font-size:.68rem}
.subject-hero .subject-meta{margin-top:12px;color:var(--muted)}.subject-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}.subject-actions .primary{flex:1 1 100%}
.empty{border:1px dashed var(--border);border-radius:var(--radius-md);padding:22px;color:var(--muted);background:transparent}
/* Settings */
.settings-shell{display:grid;gap:16px}.settings-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px}.settings-card h2{font-size:.78rem;margin:0 0 12px;text-transform:uppercase;letter-spacing:.045em;color:var(--muted)}.settings-note{color:var(--muted);margin:0 0 14px}.segmented{display:grid;grid-template-columns:1fr 1fr;max-width:380px;margin:0 auto;border:1px solid var(--border);border-radius:999px;padding:5px;background:var(--surface-3)}.segmented button{border:0;border-radius:999px;background:transparent;color:var(--muted);font-weight:850;min-height:44px}.segmented button.active{background:var(--accent);color:var(--accent-ink)}
.metric-list{display:grid}.metric{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;padding:13px 0;border-bottom:1px solid var(--border-soft)}.metric:last-child{border-bottom:0}.metric span{color:var(--muted)}.metric strong{text-align:right}.link-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.external-link{display:flex;align-items:center;justify-content:space-between;gap:12px;text-decoration:none;border:1px solid var(--border);background:var(--surface-2);border-radius:var(--radius-sm);padding:14px;font-weight:800}.external-link span:last-child{color:var(--accent);font-size:1.1rem}
details.fold{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);overflow:hidden}details.fold summary{list-style:none;padding:16px 17px;font-weight:850;cursor:pointer;display:flex;justify-content:space-between;align-items:center}details.fold summary::-webkit-details-marker{display:none}details.fold summary::after{content:'+';font-size:1.2rem;color:var(--accent)}details.fold[open] summary::after{content:'−'}details.fold .fold-body{border-top:1px solid var(--border-soft);padding:16px 17px;color:var(--muted)}
/* Import / preflight */
.dropzone{border:1px dashed color-mix(in srgb,var(--border) 70%,var(--accent));border-radius:var(--radius-lg);padding:28px;text-align:center;background:var(--surface)}.dropzone.drag{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--surface))}.dropzone p{color:var(--muted)}.paste-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.code-input{width:100%;min-height:150px;resize:vertical;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-3);color:var(--text);padding:12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.75rem}
.preflight-backdrop{position:fixed;inset:0;z-index:80;background:color-mix(in srgb,var(--page) 60%,transparent);backdrop-filter:blur(10px);display:grid;place-items:center;padding:18px}.preflight{width:min(100%,720px);max-height:calc(100vh - 36px);overflow:auto;background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:22px;box-shadow:var(--shadow)}.preflight h1{font-size:2.3rem;line-height:.93;margin:7px 0 16px}.manifest{display:grid;grid-template-columns:1fr 1fr;gap:8px}.manifest .item{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:11px}.manifest span{display:block;color:var(--muted);font-size:.68rem;text-transform:uppercase;font-weight:850}.manifest strong{display:block;margin-top:3px}.launch-settings{margin-top:12px}.launch-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.field label{display:block;font-size:.7rem;color:var(--muted);font-weight:850;text-transform:uppercase;margin-bottom:6px}.field select,.field textarea,.field input[type="text"]{width:100%;min-height:46px;border:1px solid var(--border);border-radius:10px;background:var(--surface-2);color:var(--text);padding:10px}.field textarea{min-height:76px;resize:vertical}.switch-line{display:flex;align-items:center;justify-content:space-between;min-height:46px;border:1px solid var(--border);border-radius:10px;padding:0 12px;background:var(--surface-2)}.switch-line input{accent-color:var(--accent)}
.validation{margin-top:11px}.validation ul{margin:8px 0 0;padding-left:18px}.validation li{margin:5px 0;color:var(--muted)}.validation .error{color:var(--wrong)}
/* Drill */
.drill-shell{width:min(100%,760px);margin:0 auto}.progress-row{display:grid;grid-template-columns:minmax(0,1fr) 72px;gap:12px;align-items:stretch}.progress-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden}.progress-meta{display:flex;justify-content:space-between;gap:10px;padding:13px 16px 11px;font-size:.82rem;font-weight:900}.progress-meta span:last-child{color:var(--muted)}.progress-track{height:7px;background:var(--surface-2)}.progress-fill{height:100%;background:var(--accent);transition:width .18s ease}.pause-btn{border:1px solid var(--border);border-radius:18px;background:var(--surface);color:var(--text);font-weight:900;font-size:1.15rem}
.question-card{margin-top:16px;background:linear-gradient(155deg,var(--surface-2),var(--surface));border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.prompt{font-size:clamp(1.22rem,4.8vw,1.75rem);line-height:1.38;font-weight:800;white-space:pre-wrap;overflow-wrap:anywhere}.stimulus{margin-bottom:16px;border:1px solid var(--border);border-radius:16px;background:var(--surface-3);padding:14px;overflow:hidden}.stimulus-title{font-weight:900;margin-bottom:10px}.stimulus-text{white-space:pre-wrap;overflow-wrap:anywhere}.stimulus-source,.stimulus-caption{color:var(--muted);font-size:.72rem;margin-top:8px}.stimulus-table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--border);border-radius:12px;background:var(--surface);margin:0}.stimulus-table-wrap table{border-collapse:collapse;width:100%;min-width:320px;table-layout:auto}.stimulus-table-wrap th,.stimulus-table-wrap td{padding:10px 11px;text-align:left;vertical-align:top;border-right:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);white-space:normal;overflow-wrap:anywhere}.stimulus-table-wrap th:last-child,.stimulus-table-wrap td:last-child{border-right:0}.stimulus-table-wrap tr:last-child td{border-bottom:0}.stimulus-table-wrap th{color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.035em;background:var(--surface-2)}.stimulus-svg-wrap{display:grid;place-items:center;width:100%;overflow:hidden}.stimulus-svg-wrap svg{display:block;max-width:100%;width:100%;height:auto;max-height:340px;pointer-events:none}.stimulus-svg-wrap .svg-main-line{stroke:var(--text);fill:none}.stimulus-svg-wrap .svg-accent-line{stroke:var(--accent);fill:none}.stimulus-svg-wrap .svg-muted-line{stroke:var(--muted);fill:none}.stimulus-svg-wrap .svg-secondary-line{stroke:var(--blue);fill:none}.stimulus-svg-wrap .svg-danger-line{stroke:var(--wrong);fill:none}.stimulus-svg-wrap .svg-success-line{stroke:var(--correct);fill:none}.stimulus-svg-wrap .svg-label{fill:var(--text)}.stimulus-svg-wrap .svg-accent-label{fill:var(--accent)}.stimulus-svg-wrap .svg-secondary-label{fill:var(--blue)}.stimulus-svg-wrap .svg-danger-label{fill:var(--wrong)}.stimulus-svg-wrap .svg-success-label{fill:var(--correct)}.stimulus-svg-wrap .svg-accent-fill{fill:var(--accent)}.stimulus-svg-wrap .svg-secondary-fill{fill:var(--blue)}.stimulus-svg-wrap .svg-danger-fill{fill:var(--wrong)}.stimulus-svg-wrap .svg-success-fill{fill:var(--correct)}
.choices{display:grid;gap:8px;margin-top:16px}.choice{width:100%;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:10px;align-items:start;text-align:left;border:1px solid var(--border);border-left:4px solid var(--border);border-radius:12px;background:var(--surface-3);color:var(--text);padding:13px 14px}.choice-key{font-weight:950}.choice-text{overflow-wrap:anywhere}.choice .choice-status{font-size:.7rem;color:var(--muted);font-weight:850}.choice.selected{border-left-color:var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--surface-3))}.choice.correct{border-left-color:var(--correct);background:var(--correct-bg)}.choice.wrong{border-left-color:var(--wrong);background:var(--wrong-bg)}.choice input{margin-top:4px;accent-color:var(--accent)}
.answer-label{display:block;margin-top:18px;margin-bottom:7px;color:var(--muted);font-size:.72rem;font-weight:900;text-transform:uppercase}.answer-input,.essay-input{width:100%;border:1px solid var(--border);border-radius:13px;background:var(--surface-3);color:var(--text);padding:15px;font-size:1rem}.answer-input{min-height:58px}.essay-input{min-height:140px;resize:vertical}.split-submit{display:grid;grid-template-columns:minmax(0,4fr) minmax(96px,1fr);gap:0;margin-top:11px;overflow:hidden;border-radius:13px}.split-submit .btn{border-radius:0;border-right:0}.split-submit .btn:last-child{border-right:1px solid var(--border)}.submitted-answer{display:grid;grid-template-columns:minmax(0,1fr) auto;border:1px solid var(--border);border-radius:13px;overflow:hidden;margin-top:11px}.submitted-answer .value{padding:14px;background:var(--surface-3);overflow-wrap:anywhere}.submitted-answer .next{border:0;border-left:1px solid var(--border);background:var(--accent);color:var(--accent-ink);font-weight:900;padding:0 18px}
.feedback{margin-top:13px;border:1px solid var(--border);border-radius:13px;padding:13px;background:var(--surface-3)}.feedback.correct{border-color:color-mix(in srgb,var(--correct) 70%,var(--border));background:var(--correct-bg)}.feedback.wrong{border-color:color-mix(in srgb,var(--wrong) 70%,var(--border));background:var(--wrong-bg)}.feedback-head{font-weight:950;margin-bottom:7px}.feedback.correct .feedback-head{color:var(--correct)}.feedback.wrong .feedback-head{color:var(--wrong)}.feedback p{margin:0;color:var(--muted)}
.cause-wrap{margin-top:11px}.cause-title{color:var(--muted);font-size:.7rem;text-transform:uppercase;font-weight:900;margin-bottom:7px}.chips{display:flex;gap:7px;flex-wrap:wrap}.chip{min-height:34px;border:1px solid var(--border);border-radius:999px;background:var(--surface-3);color:var(--muted);padding:0 11px;font-size:.68rem;font-weight:850}.chip.active{border-color:var(--accent);color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--surface-3))}
.control-rail{display:flex;align-items:center;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--border-soft);min-width:0}.confidence{display:grid;grid-template-columns:repeat(3,1fr);flex:1;border:1px solid var(--border);border-radius:999px;padding:4px;min-width:0}.confidence button{border:0;border-radius:999px;background:transparent;color:var(--muted);min-height:38px;font-size:.68rem;font-weight:850;padding:0 8px}.confidence button.active{background:var(--accent);color:var(--accent-ink)}.rail-divider{height:34px;width:1px;background:var(--border)}.tool{width:42px;height:42px;flex:0 0 42px;border:1px solid var(--border);border-radius:999px;background:var(--surface-3);color:var(--muted);font-size:1rem}.tool.active.calc{border-color:var(--accent);color:var(--accent)}.tool.active.comment{border-color:var(--blue);color:var(--blue);background:var(--blue-bg)}.tool.active.flag{border-color:var(--wrong);color:var(--wrong);background:var(--wrong-bg)}
.comment-box{margin-top:10px}.comment-box textarea{width:100%;min-height:84px;resize:vertical;border:1px solid var(--blue);border-radius:12px;background:var(--surface-3);color:var(--text);padding:11px}
.calculator{margin-top:11px;border:1px solid var(--border);border-radius:15px;background:var(--surface-3);padding:12px}.calc-display{border:1px solid var(--border);border-radius:11px;background:var(--page);padding:10px}.calc-expression{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.05rem}.calc-preview{min-height:20px;color:var(--muted);font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.78rem;margin-top:3px}.calc-edit{display:flex;gap:7px;margin-top:8px}.calc-edit .btn{flex:1;min-height:36px;padding:0;font-size:.75rem}.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:8px}.calc-key{min-height:42px;border:1px solid var(--border);border-radius:9px;background:var(--surface-2);color:var(--text);font-weight:850}.calc-key.equals{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.use-answer{width:100%;margin-top:8px}
.skip-toast{margin-top:12px;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);padding:10px}.skip-toast-row{display:flex;justify-content:space-between;align-items:center;gap:10px}.skip-toast strong{font-size:.78rem}.skip-reasons{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.pause-overlay{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:rgba(0,0,0,.56);backdrop-filter:blur(12px);padding:20px}.pause-card{width:min(100%,430px);background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:28px;text-align:center}.pause-card h1{font-size:2.4rem;margin:4px 0}.pause-card p{color:var(--muted)}
/* Review */
.review-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}.review-card h1{font-size:2.5rem;line-height:.95;margin:7px 0 16px}.review-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.review-stat{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:center}.review-stat strong{display:block;color:var(--accent);font-size:1.35rem}.review-stat span{font-size:.62rem;color:var(--muted);text-transform:uppercase;font-weight:850}.review-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:16px}.review-q{aspect-ratio:1;border:1px solid var(--border);border-radius:11px;background:var(--surface-2);color:var(--muted);font-weight:900}.review-q.answered{border-color:color-mix(in srgb,var(--correct) 50%,var(--border));color:var(--correct)}.review-q.skipped{border-color:color-mix(in srgb,var(--accent) 55%,var(--border));color:var(--accent)}.review-q.flagged{box-shadow:inset 0 0 0 2px var(--wrong)}
/* Results */
.results-hero{text-align:center;padding:24px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg)}.results-score{font-size:4rem;font-weight:950;line-height:.9;letter-spacing:-.05em}.results-score span{font-size:1.2rem;color:var(--muted)}.results-message{color:var(--muted);margin-top:10px}.result-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}.result-card{background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:11px}.result-card strong{display:block;font-size:1.15rem}.result-card span{font-size:.65rem;color:var(--muted);text-transform:uppercase;font-weight:850}.review-item{margin-top:10px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);overflow:hidden}.review-item summary{list-style:none;cursor:pointer;padding:15px 16px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:start}.review-item summary::-webkit-details-marker{display:none}.review-item .review-body{border-top:1px solid var(--border-soft);padding:16px}.review-item .mini-prompt{font-weight:800;line-height:1.35}.review-item .status-good{color:var(--correct);font-weight:900}.review-item .status-bad{color:var(--wrong);font-weight:900}.audit-choices{display:grid;gap:6px;margin:10px 0}.audit-choice{border-left:3px solid var(--border);padding:7px 10px;background:var(--surface-2);border-radius:8px}.audit-choice.correct{border-left-color:var(--correct)}.audit-choice.selected-wrong{border-left-color:var(--wrong)}.audit-line{margin-top:7px;color:var(--muted)}.audit-line strong{color:var(--text)}
.toast-root{position:fixed;left:50%;bottom:24px;z-index:200;transform:translateX(-50%);width:min(calc(100% - 32px),520px);pointer-events:none}.toast{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:11px 15px;text-align:center;box-shadow:var(--shadow);font-size:.78rem;font-weight:800}
@media(max-width:620px){
  .hazard{height:10px}.app-header{padding:17px 16px}.brand-dbd{font-size:1.9rem}.nav-btn{padding:0 12px;min-height:44px}.nav-btn.icon{width:46px}
  main{padding:26px 16px 72px}.home-actions{grid-template-columns:1fr 1fr}.stat-strip{grid-template-columns:repeat(3,1fr)}
  .paste-grid{grid-template-columns:1fr}.manifest{grid-template-columns:1fr 1fr}.launch-grid{grid-template-columns:1fr 1fr}
  .question-card{padding:16px}.prompt{font-size:1.25rem}.control-rail{gap:6px}.confidence button{font-size:.62rem;padding:0 4px}.tool{width:40px;height:40px;flex-basis:40px}.rail-divider{height:30px}
  .review-grid{grid-template-columns:repeat(5,1fr)}.link-grid{grid-template-columns:1fr}
}
@media(max-width:390px){.nav-btn{padding:0 9px;font-size:.67rem}.nav-btn.icon{width:42px}.home-actions{grid-template-columns:1fr}.launch-grid{grid-template-columns:1fr}.control-rail{flex-wrap:wrap}.confidence{flex-basis:100%}.rail-divider{display:none}.review-stats{grid-template-columns:repeat(2,1fr)}.review-grid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:900px){main{padding-top:34px}.question-card{padding:24px}.stimulus-svg-wrap svg{max-height:380px}}


/* 1.5 polish pass */
.history-row{cursor:pointer}
.history-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md)}
.more-btn{width:36px;height:36px;font-size:1rem;letter-spacing:0;color:var(--muted);opacity:.82}
.more-btn span{display:block;transform:translateY(-1px)}
.more-btn:hover,.more-btn:focus-visible{opacity:1;background:var(--surface-2);outline:none}
.audit-choice{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:start}
.audit-status{align-self:start;white-space:nowrap;border:1px solid var(--border);border-radius:999px;padding:3px 7px;font-size:.58rem;font-weight:900;letter-spacing:.035em}
.audit-status.good{color:var(--correct);border-color:color-mix(in srgb,var(--correct) 55%,var(--border));background:var(--correct-bg)}
.audit-status.bad{color:var(--wrong);border-color:color-mix(in srgb,var(--wrong) 55%,var(--border));background:var(--wrong-bg)}
.settings-card .actions{margin-top:13px}
.settings-card .btn{min-height:44px}
.external-link:hover,.external-link:focus-visible{border-color:color-mix(in srgb,var(--accent) 55%,var(--border));outline:none;background:color-mix(in srgb,var(--accent) 5%,var(--surface-2))}
.fold summary:hover{background:color-mix(in srgb,var(--surface-2) 72%,transparent)}
.stimulus-table{white-space:normal}
.stimulus-table-wrap{display:block;max-width:100%}
.stimulus-table-wrap table{margin:0}
@media(max-width:620px){
  .audit-choice{grid-template-columns:1fr}.audit-status{justify-self:start}
}