/* pt.o3o.vn — Thi thử DMV California tiếng Việt. iPhone-first. */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:#f2f4f8;color:#17233b;font-size:17px;line-height:1.5;padding-bottom:env(safe-area-inset-bottom)}
button{font:inherit;cursor:pointer;touch-action:manipulation}

.scr{display:none;min-height:100vh;min-height:100dvh}
.scr.open{display:block}
.wrap{max-width:560px;margin:0 auto;padding:14px 14px 28px}

/* ---- trang chính ---- */
.hero{background:linear-gradient(160deg,#123c8c,#1e5ad6);color:#fff;text-align:center;padding:calc(26px + env(safe-area-inset-top)) 18px 26px;border-radius:0 0 26px 26px}
.hero-badge{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:20px;padding:4px 14px;font-size:12px;font-weight:800;letter-spacing:2px;margin-bottom:12px}
.hero h1{font-size:27px;line-height:1.25;letter-spacing:-.3px}
.hero-sub{margin-top:8px;font-size:14px;opacity:.92}

.mode{display:flex;align-items:center;gap:14px;width:100%;background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:15px 16px;margin:12px 0;text-align:left;box-shadow:0 2px 10px rgba(23,35,59,.05)}
.mode:active{transform:scale(.985);background:#f7f9fd}
.mode-ic{font-size:28px;flex:0 0 auto}
.mode-tx b{display:block;font-size:17.5px}
.mode-tx small{display:block;color:#66738c;font-size:13.5px;margin-top:2px;line-height:1.4}
.mode-exam{border:2px solid #1e5ad6;box-shadow:0 4px 16px rgba(30,90,214,.16)}

.card{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:16px;margin:12px 0}
.card.info b{font-size:15.5px}
.card.info ul{margin:8px 0 0 20px;font-size:14.5px;color:#42506b}
.card.info li{margin:5px 0}
.ok{color:#0e8a45}.bad{color:#d3312e}
.card.stats{font-size:14.5px}
.card.stats .row{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed #edf0f5}
.card.stats .row:last-child{border-bottom:0}
.hidden{display:none!important}
.foot{text-align:center;color:#8b96ab;font-size:12.5px;padding:10px 20px calc(20px + env(safe-area-inset-bottom));line-height:1.6}

/* ---- thanh trên ---- */
.bar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid #e6eaf1;padding:calc(10px + env(safe-area-inset-top)) 14px 10px}
.bar b{font-size:16px}
.bar .back{background:none;border:0;color:#1e5ad6;font-size:16px;font-weight:600;padding:6px 8px;margin-left:-8px}
.bar span{min-width:52px;text-align:right;font-size:15px;color:#66738c;font-variant-numeric:tabular-nums}

.progress{height:4px;background:#e6eaf1}
#prog-bar{height:100%;width:0;background:linear-gradient(90deg,#1e5ad6,#4f86f7);transition:width .25s}

/* ---- câu hỏi ---- */
.tally{display:flex;gap:8px;justify-content:center;margin:4px 0 2px;font-size:13.5px;font-weight:700}
.tally .t-ok{color:#0e8a45}.tally .t-bad{color:#d3312e}.tally .t-left{color:#66738c;font-weight:500}
.qcard{padding:18px 16px}
.qsign{text-align:center;margin-bottom:12px}
.qsign svg{height:130px;width:auto;max-width:100%}
.qsign.wide svg{height:200px}
.qtext{font-size:18px;font-weight:650;line-height:1.45}
.opts{margin-top:14px;display:grid;gap:10px}
.opt{display:flex;gap:12px;align-items:flex-start;width:100%;text-align:left;background:#f7f9fd;border:2px solid #e3e8f0;border-radius:14px;padding:13px 14px;font-size:16.5px;line-height:1.45;min-height:52px}
.opt:active{background:#eef3fd}
.opt .k{flex:0 0 26px;height:26px;border-radius:50%;background:#fff;border:1.5px solid #c6cfdd;color:#42506b;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;margin-top:1px}
.opt.sel{border-color:#1e5ad6;background:#eef3fd}
.opt.correct{border-color:#0e8a45;background:#e9f8ef}
.opt.correct .k{background:#0e8a45;border-color:#0e8a45;color:#fff}
.opt.wrong{border-color:#d3312e;background:#fdeceb}
.opt.wrong .k{background:#d3312e;border-color:#d3312e;color:#fff}
.opt[disabled]{opacity:1}

.feedback{margin:12px 2px 0;font-size:15.5px;line-height:1.5;display:none}
.feedback.show{display:block}
.feedback .fb-head{font-weight:800;font-size:16.5px}
.feedback.good .fb-head{color:#0e8a45}
.feedback.bad2 .fb-head{color:#d3312e}
.feedback .fb-ex{margin-top:6px;color:#42506b;background:#fff;border:1px solid #e3e8f0;border-left:4px solid #f3b23e;border-radius:10px;padding:10px 12px;font-size:14.5px}

.btn-primary{display:block;width:100%;background:#1e5ad6;color:#fff;border:0;border-radius:14px;padding:15px;font-size:17px;font-weight:750;margin:14px 0 0;min-height:54px}
.btn-primary:active{background:#1747ab}
.btn-ghost{display:block;width:100%;background:#fff;color:#1e5ad6;border:1.5px solid #c9d7f3;border-radius:14px;padding:13px;font-size:16px;font-weight:650;margin:10px 0 0;min-height:50px}

/* ---- kết quả ---- */
.res-banner{border-radius:20px;color:#fff;text-align:center;padding:34px 18px;margin-top:16px}
.res-banner.pass{background:linear-gradient(160deg,#0e8a45,#16b25f)}
.res-banner.fail{background:linear-gradient(160deg,#c22a27,#e0524f)}
.res-banner .big{font-size:44px;font-weight:900;letter-spacing:1px}
.res-banner .sub{margin-top:6px;font-size:16px;opacity:.95}
.res-banner .score{margin-top:14px;font-size:15px;background:rgba(255,255,255,.16);display:inline-block;border-radius:20px;padding:6px 16px}
#res-detail{font-size:15px}
#res-detail .row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed #edf0f5}
#res-detail .row:last-child{border-bottom:0}

/* ---- xem lại ---- */
.rev{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:14px;margin:12px 0;font-size:15.5px}
.rev .rq{font-weight:700}
.rev .ra{margin-top:8px}
.rev .ra .no{color:#d3312e}
.rev .ra .yes{color:#0e8a45;font-weight:650}
.rev .re{margin-top:8px;color:#42506b;font-size:14px;background:#fbf7ef;border-radius:8px;padding:8px 10px}
.rev .rs{text-align:center;margin-bottom:8px}
.rev .rs svg{height:84px;width:auto;max-width:100%}
.rev .rs.wide svg{height:160px}

/* ---- chủ đề ---- */
.cat{display:flex;justify-content:space-between;align-items:center;width:100%;background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:15px 16px;margin:10px 0;font-size:16.5px;font-weight:650;text-align:left}
.cat small{display:block;font-weight:500;color:#66738c;font-size:13px;margin-top:2px}
.cat:active{background:#f7f9fd}
.cat .n{color:#1e5ad6;font-weight:800;font-size:14px;flex:0 0 auto;margin-left:10px}

/* ---- game hoá: điểm, sao, âm thanh ---- */
.hero{position:relative}
.snd-btn{position:absolute;top:calc(14px + env(safe-area-inset-top));right:14px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:12px;font-size:20px;line-height:1;padding:8px 10px;color:#fff}
.snd-btn.inbar{position:static;background:#f1f5fc;border:1px solid #dde5f2;padding:5px 8px;font-size:16px;border-radius:10px;margin-right:8px}
.bar-r{display:flex;align-items:center}
.pts-chip{display:inline-block;margin-top:14px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:8px 16px;font-size:15px}
.pts-chip b{font-variant-numeric:tabular-nums}
.pts-chip small{display:block;font-size:12.5px;opacity:.85;margin-top:2px}
.tally{position:relative}
.float-pt{position:absolute;right:6px;top:-4px;color:#0e8a45;font-weight:800;font-size:17px;pointer-events:none;animation:floatUp 1s ease-out forwards}
.float-pt.hot{color:#e0611f;font-size:16px;top:18px}
@keyframes floatUp{0%{opacity:0;transform:translateY(6px)}20%{opacity:1}100%{opacity:0;transform:translateY(-26px)}}
.star-pop{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(12,22,44,.55);opacity:0;transition:opacity .25s;pointer-events:none}
.star-pop.go{opacity:1}
.star-pop .sp-star{font-size:88px;animation:starZoom 2.3s ease-out forwards}
.star-pop .sp-t{color:#fff;font-size:24px;font-weight:800;margin-top:6px}
.star-pop .sp-s{color:#ffe9a8;font-size:16.5px;margin-top:4px}
@keyframes starZoom{0%{transform:scale(.2) rotate(-30deg)}30%{transform:scale(1.25) rotate(8deg)}45%{transform:scale(1)}100%{transform:scale(1)}}
.install p{margin:8px 0 10px;line-height:1.5;font-size:15.5px}
.install .ios-share{display:inline-block;border:1.5px solid #1e5ad6;color:#1e5ad6;border-radius:6px;padding:0 7px;font-weight:800}
.btn-ghost.sm{font-size:15px;padding:10px 14px;min-height:44px}
.btn-reset{display:block;width:100%;background:none;border:1.5px dashed #c9d3e4;border-radius:14px;color:#66738c;font-size:15px;padding:13px 14px;margin:2px 0 4px;min-height:48px}
.btn-reset:active{background:#f1f5fc}

/* ---- đọc câu hỏi thành tiếng ---- */
.mode.voice{border:2px solid #dde5f2}
.mode.voice.von{border-color:#0e8a45;background:#f2fbf5}
.mode.voice.von .mode-tx b{color:#0e8a45}
.listen{display:block;margin:10px auto 2px;background:#eef4ff;border:1.5px solid #c9dafc;color:#1e5ad6;border-radius:999px;font-size:15.5px;font-weight:700;padding:11px 20px;min-height:46px}
.listen:active{background:#dce9ff}

@media (min-width:700px){
  .hero h1{font-size:32px}
  .qsign svg{height:170px}
  .qsign.wide svg{height:240px}
}