:root{
  --bg:#f6f7fb;--panel:#fff;--panel2:#f0f3f8;--text:#171a21;--muted:#6d7582;
  --line:#e3e7ee;--blue:#2563eb;--green:#15803d;--red:#c62828;--shadow:0 10px 30px rgba(30,40,70,.08);
  --radius:20px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Thai",Tahoma,Arial,sans-serif;
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}body{min-height:100dvh}
button,select{font:inherit}button{touch-action:manipulation}.screen{min-height:100dvh;padding:calc(14px + var(--safe-top)) 14px calc(24px + var(--safe-bottom));max-width:980px;margin:0 auto}
.topbar{display:flex;align-items:center;gap:10px;min-height:52px;margin-bottom:14px}.brand{font-size:23px;font-weight:800;letter-spacing:-.4px;flex:1}.icon-btn,.soft-btn,.primary-btn{border:0;border-radius:14px;min-height:46px;padding:0 15px;background:var(--panel2);color:var(--text);font-weight:700}.icon-btn{min-width:46px;padding:0}.primary-btn{background:var(--blue);color:white}.soft-btn:disabled,.primary-btn:disabled{opacity:.42}.kicker{font-size:11px;font-weight:800;letter-spacing:1.2px;color:var(--blue);text-transform:uppercase}.hero{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow);margin-bottom:16px}.hero h1{font-size:26px;line-height:1.1;margin:6px 0 8px}.hero p{margin:0;color:var(--muted);line-height:1.55}.section-title{font-size:14px;font-weight:800;margin:18px 2px 10px}.movie-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.movie-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 5px 18px rgba(30,40,70,.06);cursor:pointer;min-width:0}.poster-wrap{aspect-ratio:2/3;background:linear-gradient(145deg,#dbeafe,#eef2ff);position:relative;overflow:hidden}.poster-wrap img{width:100%;height:100%;display:block;object-fit:cover}.poster-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:42px;font-weight:900;color:#6b7db5}.movie-copy{padding:11px}.movie-title{font-weight:800;font-size:14px;line-height:1.2}.movie-subtitle{font-size:11px;color:var(--muted);line-height:1.35;margin-top:5px}.category{font-size:10px;color:var(--blue);font-weight:800;margin-bottom:6px}.preview-grid{display:grid;grid-template-columns:112px 1fr;gap:15px;align-items:start}.preview-poster{aspect-ratio:2/3;border-radius:17px;overflow:hidden;background:var(--panel2);position:relative}.preview-poster img{width:100%;height:100%;object-fit:cover}.settings-card,.part-card,.question-card,.feedback-card,.history-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:14px}.settings-card{margin-top:14px}.segmented{display:flex;gap:8px;flex-wrap:wrap}.seg-btn{border:1px solid var(--line);background:var(--panel2);border-radius:12px;min-height:42px;padding:0 13px;font-weight:750;color:var(--text)}.seg-btn.active{background:#e8f0ff;border-color:#8fb0ff;color:#1747ad}.parts{display:grid;gap:10px;margin-top:10px}.part-card{cursor:pointer;transition:transform .12s ease}.part-card:active{transform:scale(.99)}.part-card .part-kicker{font-size:10px;color:var(--blue);font-weight:800}.part-card h3{font-size:16px;margin:5px 0 4px}.part-card p{font-size:12px;color:var(--muted);margin:0;line-height:1.45}.row{display:flex;gap:10px;align-items:center}.row.spread{justify-content:space-between}.grow{flex:1}.muted{color:var(--muted)}.tiny{font-size:11px}.label{font-size:12px;font-weight:800;margin:0 0 8px}.quiz-header{position:sticky;top:0;z-index:5;background:rgba(246,247,251,.94);backdrop-filter:blur(10px);padding-top:var(--safe-top);margin-top:calc(-1 * var(--safe-top));padding-bottom:8px}.progress-track{height:6px;background:#e6eaf1;border-radius:999px;overflow:hidden;margin:2px 0 12px}.progress-bar{height:100%;background:var(--blue);width:0}.question-card{padding:18px;margin-bottom:12px}.question-number{font-size:11px;color:var(--muted);font-weight:800}.question-prompt{font-size:19px;font-weight:750;line-height:1.55;margin:11px 0 4px;word-break:break-word}.sentence-secondary{font-size:14px;color:var(--muted);line-height:1.55;margin-top:8px}.token{display:inline}.focus-a{background:#dbeafe;border-radius:6px;padding:1px 3px;color:#1747ad;font-weight:800}.focus-b{background:#dcfce7;border-radius:6px;padding:1px 3px;color:#166534;font-weight:800}.choice-list{display:grid;gap:9px;margin:12px 0}.choice{border:1px solid var(--line);background:var(--panel);border-radius:15px;min-height:54px;text-align:left;padding:11px 14px;font-weight:700;color:var(--text);line-height:1.35}.choice.selected{background:#e8f0ff;border-color:#8fb0ff}.choice.correct{background:#eaf8ef;border-color:#7bc693;color:#14532d}.choice.wrong{background:#fff0f0;border-color:#ef9b9b;color:#8f1d1d}.choice:disabled{opacity:1}.feedback-card{margin-top:10px}.feedback-card.good{background:#f1fbf4;border-color:#b6dfc2}.feedback-card.bad{background:#fff4f4;border-color:#f1b6b6}.feedback-title{font-weight:900;margin-bottom:6px}.feedback-body{font-size:13px;line-height:1.55;color:var(--muted)}.quiz-nav{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;align-items:center;margin:14px 0}.quiz-nav .soft-btn:last-child{justify-self:end}.center-note{font-size:12px;color:var(--muted);text-align:center}.action-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.thai-btn{border:1px solid #a8c1ff;background:#f1f5ff;color:#1747ad;border-radius:13px;min-height:44px;padding:0 14px;font-weight:800}.family-table{display:grid;gap:8px;margin-top:12px}.family-row{display:grid;grid-template-columns:1fr 150px;gap:8px;align-items:center;background:var(--panel2);border-radius:12px;padding:8px 10px}.family-row select{min-height:42px;border:1px solid var(--line);border-radius:10px;background:white;padding:0 8px}.family-row.good{background:#edf9f0}.family-row.bad{background:#fff0f0}.modal-backdrop{position:fixed;inset:0;z-index:50;background:rgba(20,25,35,.42);display:flex;align-items:flex-end;justify-content:center;padding:12px}.modal{width:min(680px,100%);max-height:88dvh;overflow:auto;background:white;border-radius:24px 24px 18px 18px;padding:18px 17px calc(18px + var(--safe-bottom));box-shadow:0 25px 80px rgba(0,0,0,.22)}.modal-head{display:flex;align-items:center;gap:10px;position:sticky;top:-18px;background:white;padding:18px 0 10px;margin-top:-18px}.modal-head h2{font-size:19px;margin:0;flex:1}.modal-section{border-top:1px solid var(--line);padding:13px 0}.modal-section h4{font-size:12px;color:var(--blue);margin:0 0 6px}.modal-section p{margin:0;font-size:14px;line-height:1.65;white-space:pre-wrap}.history-list{display:grid;gap:10px}.score{font-size:24px;font-weight:900}.review-item{border-top:1px solid var(--line);padding:10px 0}.review-item.bad .review-status{color:var(--red)}.review-status{font-size:11px;font-weight:900;color:var(--green)}.empty{padding:40px 12px;text-align:center;color:var(--muted)}.install-hint{font-size:12px;line-height:1.5;background:#eef5ff;border:1px solid #ccdcff;padding:12px;border-radius:14px;margin-top:16px}.result-hero{text-align:center;padding:28px 18px}.result-score{font-size:44px;font-weight:950;letter-spacing:-1px}.result-sub{color:var(--muted);margin-top:5px}
@media(min-width:700px){.screen{padding-left:24px;padding-right:24px}.movie-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.movie-title{font-size:16px}.movie-subtitle{font-size:12px}.parts{grid-template-columns:repeat(2,minmax(0,1fr))}.preview-grid{grid-template-columns:160px 1fr}.question-card{padding:24px}.question-prompt{font-size:22px}.choice-list{grid-template-columns:repeat(2,minmax(0,1fr))}.modal-backdrop{align-items:center}.modal{border-radius:24px}.family-row{grid-template-columns:1fr 220px}}