:root{color:#20242a;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--surface:#fff;--surface-strong:#f9fafb;--ink:#20242a;--muted:#5d6673;--line:#d9dee7;--teal:#0f766e;--teal-strong:#0b5f59;--red:#b42318;--red-soft:#fff1f0;--green:#1f7a4d;--green-soft:#edf8f1;--amber:#9a5b00;--amber-soft:#fff7df;background:#f4f6f8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:var(--surface-strong);min-width:320px;min-height:100vh;color:var(--ink);margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled,input:disabled{cursor:not-allowed}.app-shell{width:min(1180px,100% - 32px);min-height:100vh;margin:0 auto;padding:28px 0}.auth-shell{place-items:center;display:grid}.auth-card{border:1px solid var(--line);background:var(--surface);border-radius:8px;width:min(100%,440px);padding:24px;box-shadow:0 16px 44px #20242a14}.auth-form{gap:12px;margin-top:20px;display:grid}.auth-note{color:var(--muted);margin:12px 0 0;line-height:1.5}.auth-form label,.settings-form label{color:var(--ink);gap:8px;font-weight:700;display:grid}.auth-form input,.settings-form input{width:100%;color:var(--ink);background:#fff;border:1px solid #bfc7d2;border-radius:8px;outline:none;padding:13px 14px}.auth-form input:focus,.settings-form input:focus{border-color:var(--teal);box-shadow:0 0 0 3px #0f766e29}.utility-bar{border:1px solid var(--line);background:var(--surface);border-radius:8px;justify-content:space-between;align-items:center;gap:14px;margin-bottom:14px;padding:12px;display:flex;box-shadow:0 10px 26px #20242a0f}.utility-meta{flex-wrap:wrap;align-items:baseline;gap:10px;display:flex}.utility-meta span{color:var(--muted);font-size:.9rem;font-weight:700}.utility-meta .sync-badge{color:var(--teal-strong);background:#eef7f6;border:1px solid #cbd5e1;border-radius:999px;padding:4px 9px;font-size:.82rem}.utility-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.utility-button{min-height:38px}.settings-panel{border:1px solid var(--line);background:var(--surface);border-radius:8px;margin-bottom:14px;padding:18px;box-shadow:0 10px 26px #20242a0f}.settings-panel h2{letter-spacing:0;margin:0;font-size:1.25rem}.settings-form{grid-template-columns:repeat(3,minmax(0,1fr)) auto;align-items:end;gap:12px;margin-top:16px;display:grid}.settings-message,.settings-error{margin:12px 0 0;font-size:.94rem;font-weight:700}.settings-message{color:var(--green)}.settings-error{color:var(--red)}.quiz-layout{grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);align-items:stretch;gap:18px;display:grid}.quiz-panel,.answer-panel,.results-page{border:1px solid var(--line);background:var(--surface);border-radius:8px;box-shadow:0 16px 44px #20242a14}.quiz-panel{min-width:0;padding:20px}.answer-panel{flex-direction:column;gap:18px;padding:20px;display:flex}.topbar,.results-header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.eyebrow{color:var(--teal);text-transform:uppercase;margin:0 0 6px;font-size:.82rem;font-weight:700}h1{letter-spacing:0;margin:0;font-size:1.9rem;line-height:1.15}.score-pill{border:1px solid var(--line);min-width:108px;color:var(--muted);background:#fbfcfd;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;display:inline-flex}.score-pill strong{color:var(--ink)}.progress-track{background:#e7ebf0;border-radius:8px;height:8px;margin:18px 0;overflow:hidden}.progress-bar{border-radius:inherit;background:var(--teal);height:100%;transition:width .18s}.gif-stage{background-color:#fff;background-image:linear-gradient(45deg,#f4f6f8 25%,#0000 25%),linear-gradient(-45deg,#f4f6f8 25%,#0000 25%),linear-gradient(45deg,#0000 75%,#f4f6f8 75%),linear-gradient(-45deg,#0000 75%,#f4f6f8 75%);background-position:0 0,0 10px,10px -10px,-10px 0;background-repeat:repeat,repeat,repeat,repeat;background-size:20px 20px;background-attachment:scroll,scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box;border:1px solid #e3e7ee;border-radius:8px;place-items:center;min-height:520px;display:grid}.quiz-gif{object-fit:contain;max-width:min(100%,760px);max-height:500px;display:block}.question-meta{border-bottom:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:12px;padding-bottom:14px;font-weight:700;display:flex}.answer-form{gap:12px;display:grid}.answer-form label{color:var(--ink);font-weight:700}.answer-form input{width:100%;color:var(--ink);background:#fff;border:1px solid #bfc7d2;border-radius:8px;outline:none;padding:13px 14px}.answer-form input:focus{border-color:var(--teal);box-shadow:0 0 0 3px #0f766e29}.input-error{color:var(--red);margin:-4px 0 0;font-size:.92rem;font-weight:700}.feedback{border-radius:8px;gap:8px;padding:14px;display:grid}.feedback p{margin:0;line-height:1.5}.feedback span{color:var(--muted);font-size:.92rem}.feedback-correct{background:var(--green-soft);color:var(--green);border:1px solid #a9d9bd}.feedback-wrong{background:var(--red-soft);color:var(--red);border:1px solid #f0b4ad}.primary-button,.secondary-button{border-radius:8px;min-height:46px;padding:0 16px;font-weight:800;transition:transform .12s,background .12s,border-color .12s}.primary-button{border:1px solid var(--teal);background:var(--teal);color:#fff}.primary-button:hover{background:var(--teal-strong)}.secondary-button{color:var(--ink);background:#fff;border:1px solid #b8c2ce}.secondary-button:hover{border-color:var(--teal)}.primary-button:active,.secondary-button:active{transform:translateY(1px)}.session-facts{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:auto;display:grid}.session-facts div{border:1px solid var(--line);background:#fbfcfd;border-radius:8px;padding:12px}.session-facts span,.stat-card span{color:var(--muted);margin-bottom:6px;font-size:.82rem;font-weight:700;display:block}.session-facts strong,.stat-card strong{color:var(--ink);font-size:1.35rem}.results-page{padding:22px}.summary-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:22px 0;display:grid}.stat-card{border:1px solid var(--line);background:#fff;border-radius:8px;padding:16px}.review-table-wrap{border:1px solid var(--line);border-radius:8px;overflow-x:auto}.review-table{border-collapse:collapse;background:#fff;width:100%;min-width:780px}.review-table th,.review-table td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:12px 14px}.review-table th{color:#3e4651;background:#f5f7fa;font-size:.86rem}.review-table tr:last-child td{border-bottom:0}.status{border-radius:999px;justify-content:center;min-width:54px;padding:4px 8px;font-size:.82rem;font-weight:800;display:inline-flex}.status-correct{background:var(--green-soft);color:var(--green)}.status-wrong{background:var(--red-soft);color:var(--red)}@media (width<=860px){.app-shell{width:min(100% - 20px,680px);padding:10px 0}.quiz-layout{grid-template-columns:1fr}.topbar,.results-header,.utility-bar{flex-direction:column;align-items:stretch}.settings-form{grid-template-columns:1fr}.score-pill{width:100%}.gif-stage{min-height:360px}.quiz-gif{max-height:340px}.summary-grid,.session-facts{grid-template-columns:1fr}}
/* Keep the answer field directly below the GIF at every screen size. */
.quiz-layout{grid-template-columns:minmax(0,1fr);max-width:860px;margin-inline:auto;gap:12px}.gif-stage{min-height:0;padding:16px}.quiz-gif{max-height:min(500px,42vh)}

/* Public guide beside the password form; the quiz layout is preserved. */
.auth-shell{grid-template-columns:minmax(280px,360px) minmax(0,1fr);align-content:center;align-items:start;gap:24px}
.auth-shell .auth-card{width:100%}
.tutorial-card{min-width:0;width:100%;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 16px 44px #20242a14}
.tutorial-card h2{margin:0;font-size:1.65rem;line-height:1.2;color:var(--ink)}
.tutorial-description,.tutorial-note,.tutorial-status{color:var(--muted);font-size:.95rem;line-height:1.6}
.tutorial-description{margin:12px 0 18px}
.tutorial-player{position:relative;overflow:hidden;border-radius:8px;background:#0c1420;aspect-ratio:16/9}
.tutorial-player video{display:block;width:100%;height:100%;object-fit:contain}
.tutorial-play{position:absolute;inset:0;border:0;display:flex;align-items:center;justify-content:center;gap:12px;background:#07132170;color:white;font-size:1.1rem;font-weight:750;text-shadow:0 1px 8px #000}
.tutorial-play span{display:grid;place-items:center;width:58px;height:58px;border-radius:50%;background:var(--teal);box-shadow:0 4px 24px #0006;font-size:1.35rem;padding-left:3px}
.tutorial-play:hover span{background:var(--teal-strong)}
.tutorial-play:focus-visible{outline:3px solid #5eead4;outline-offset:-4px}
.tutorial-note{margin:14px 0 0;font-size:.85rem}
.tutorial-status{margin:12px 0 0}
.tutorial-error{color:var(--red);margin-top:12px;font-size:.92rem;line-height:1.5}
.tutorial-error p{margin:0 0 10px}
@media (width<=860px){.auth-shell{grid-template-columns:minmax(0,1fr);align-content:start;gap:18px;padding:24px 0}.auth-shell .auth-card{max-width:440px}.tutorial-card{padding:20px}.tutorial-card h2{font-size:1.4rem}}
@media (width<=420px){.tutorial-card{padding:16px}.tutorial-play{font-size:.95rem;gap:9px}.tutorial-play span{width:44px;height:44px;font-size:1.1rem}}

/* Compact answer row and session statistics beside the score. */
.quiz-panel .topbar{flex-direction:row;align-items:center;flex-wrap:wrap;gap:16px}
.quiz-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;flex:1;max-width:520px;min-width:0}
.quiz-stats .score-pill,.quiz-stat{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:4px;min-width:0;min-height:64px;width:auto;border:1px solid var(--line);border-radius:8px;background:#fbfcfd;padding:9px 12px}
.quiz-stats span{color:var(--muted);font-size:.76rem;line-height:1.3;white-space:nowrap}
.quiz-stats strong{color:var(--ink);font-size:1.12rem;line-height:1.2}
.answer-form{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:10px;width:100%;max-width:620px;margin-inline:auto}
.answer-form>label{grid-column:1/-1}
.answer-form>input{grid-column:1;grid-row:2;min-width:0;height:44px;padding:10px 12px}
.answer-form>input[readonly]{background:#f7f9fb}
.answer-form>.answer-submit{grid-column:2;grid-row:2;min-width:142px;min-height:44px;padding:0 14px;white-space:nowrap}
.answer-form>.feedback,.answer-form>.input-error,.answer-hint{grid-column:1/-1}
.answer-hint{margin:0;color:var(--muted);font-size:.82rem;line-height:1.5}
@media (width<=650px){.quiz-stats{flex-basis:100%;max-width:none}.quiz-stats .score-pill,.quiz-stat{padding:8px}.quiz-stats span{font-size:.7rem;white-space:normal}.answer-form>.answer-submit{min-width:0;padding:0 10px;font-size:.82rem}}