:root{color-scheme:light;--bg:#F4F2EC;--card:#FFFFFF;--ink:#15171C;--muted:#5A5F6B;--line:#E2DFD6;--soft:#ECE9E1;--night:#1C2333;--night-2:#252E42;--night-line:#3A4359;--night-muted:#C9CFDC;--amber:#F2B640;--amber-ink:#8A5300;--amber-soft:#FBEFD3;--blue:#2B59C3;--blue-dark:#1E428F;--blue-soft:#E8EEFB;--red:#B4361C;--red-soft:#FBE7E2;--radius:16px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px;line-height:1.45;-webkit-tap-highlight-color:transparent}a{color:var(--blue)}a:hover{color:var(--blue-dark)}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.55}:focus-visible{outline:3px solid var(--blue);outline-offset:2px}h1,h2,h3{margin:0;line-height:1.2}.display{font-family:Space Grotesk,Inter,sans-serif;letter-spacing:-.5px}.screen{min-height:100dvh}.screen,.wrap{display:flex;flex-direction:column}.wrap{width:100%;max-width:520px;margin:0 auto;padding:24px 16px 32px;gap:16px;flex:1 1}.wrap.has-nav{padding-bottom:96px}.wide{width:100%;max-width:1240px;margin:0 auto;padding:24px 16px 48px;display:flex;flex-direction:column;gap:20px}.between,.row{display:flex;align-items:center;gap:12px}.between{justify-content:space-between}.stack{display:flex;flex-direction:column;gap:10px}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.muted{color:var(--muted)}.small{font-size:14px}.tiny{font-size:13px}.label{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:1px}.center{text-align:center}.spacer{flex:1 1}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}.card.big{border-radius:22px;padding:22px}.night{background:var(--night);color:#fff;border-radius:18px;padding:18px}.night .muted{color:var(--night-muted)}.chip{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;background:var(--card);border:1px solid var(--line)}.chip.amber{background:var(--amber-soft);color:var(--amber-ink)}.chip.amber,.chip.blue{border-color:transparent}.chip.blue{background:var(--blue-soft);color:var(--blue-dark)}.sec-ic{width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;flex:none;font-weight:700;font-size:13px}.sec-ic.words{background:var(--amber-soft);color:var(--amber-ink)}.sec-ic.story{background:var(--blue-soft);color:var(--blue-dark)}.sec-ic svg{width:18px;height:18px}.notice{background:var(--amber-soft);color:#4A3200;padding:12px 14px}.error,.notice{border-radius:12px;font-size:15px}.error{background:var(--red-soft);color:var(--red);padding:10px 14px;font-weight:600}.btn{min-height:52px;border-radius:14px;border:none;padding:0 18px;font-weight:700;font-size:16px;display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none}.btn.primary{background:var(--night);color:#fff}.btn.primary:hover{color:#fff;background:#2a3550}.btn.amber{background:var(--amber);color:var(--night)}.btn.amber:hover{color:var(--night);background:#f5c35f}.btn.blue{background:var(--blue);color:#fff}.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}.btn.outline{background:var(--card);color:var(--night);border:2px solid var(--night)}.btn.small{min-height:44px;font-size:15px;padding:0 14px;border-radius:12px}.btn.block{width:100%}.icon-btn{width:44px;height:44px;border-radius:12px;background:var(--card);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);flex:none}.bar{height:8px;background:var(--line);overflow:hidden}.bar,.bar>span{border-radius:999px}.bar>span{display:block;height:100%;background:var(--night);transition:width .3s}.bar.blue>span{background:var(--blue)}.bar.thick{height:10px;background:var(--soft)}.lights{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));grid-gap:5px;gap:5px}.lights>span{height:18px;border-radius:4px;background:var(--night-line);transition:background .4s}.lights>span.on{background:var(--amber);box-shadow:0 0 10px rgba(242,182,64,.55)}.nav{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);padding:6px 4px calc(10px + env(safe-area-inset-bottom));z-index:10}.nav-inner{max-width:520px;margin:0 auto;display:grid;grid-template-columns:repeat(5,minmax(0,1fr))}.nav a{min-height:50px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:12px;color:var(--muted);text-decoration:none}.nav a.active{color:var(--night);font-weight:700}.login{background:var(--night);color:#fff}.logos{background:#fff;border-radius:16px;padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.logos img.pev{height:46px;width:auto;display:block}.logos .te{height:46px;border-radius:10px;background:var(--night);display:flex;align-items:center;padding:0 12px}.logos .te img{height:32px;width:auto;display:block}.brand-mark{width:68px;height:68px;border-radius:20px;background:var(--amber);display:flex;align-items:center;justify-content:center}.name-btn{min-height:50px;border-radius:12px;border:1px solid var(--night-line);background:var(--night-2);color:#fff;font-weight:500}.name-btn.sel{border:2px solid var(--amber);background:#2E2A1E;font-weight:700}.pin{height:58px;border-radius:12px;border:1px solid var(--night-line);background:var(--night-2);color:#fff;font-size:26px;font-weight:700;letter-spacing:18px;text-align:center;width:100%}.pin::placeholder{color:#6B7489;letter-spacing:18px}.word-card{flex:1 1;min-height:260px;background:var(--card);border:1px solid var(--line);border-radius:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:24px;box-shadow:0 12px 30px rgba(28,35,51,.08);text-align:center}.big-word{font-family:Space Grotesk,Inter,sans-serif;font-size:46px;font-weight:700;letter-spacing:-1px;line-height:1.1;word-break:break-word}.scan-btns .btn{min-height:58px;font-size:17px;border-radius:16px}.prompt{font-size:18px;line-height:1.5;font-weight:500}.option{min-height:56px;border-radius:14px;border:1px solid var(--line);background:var(--card);text-align:left;padding:10px 16px;gap:14px;font-size:18px;font-weight:600;width:100%}.option,.option .key{display:flex;align-items:center}.option .key{width:30px;height:30px;border-radius:8px;background:var(--bg);justify-content:center;font-size:14px;flex:none}.option.right{border:2px solid var(--blue);background:var(--blue-soft)}.option.right .key{background:var(--blue);color:#fff}.option.wrong{border:2px solid var(--red);background:var(--red-soft)}.option.wrong .key{background:var(--red);color:#fff}.tf{min-height:66px;font-size:19px}.feedback{border-radius:18px;padding:16px 18px;display:flex;flex-direction:column;gap:10px}.feedback.good{background:var(--night);color:#fff}.feedback.bad{background:var(--red-soft);color:#5A1708}.slots{flex-wrap:wrap;gap:6px}.slot,.slots{display:flex;justify-content:center}.slot{width:42px;height:50px;border-radius:10px;border:2px dashed #9aa0ac;align-items:center;font:700 22px Space Grotesk,Inter,sans-serif;text-transform:uppercase}.slot.filled{border:none;background:var(--night);color:#fff}.tiles{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.tile{width:52px;height:54px;border-radius:14px;border:1px solid var(--line);background:var(--card);font:700 22px Space Grotesk,Inter,sans-serif;text-transform:uppercase}.tile:disabled{opacity:.25}.gap-sentence{font-size:20px;line-height:1.6;font-weight:500}.word-img{width:100%;max-height:190px;object-fit:contain;border-radius:14px;background:var(--bg)}.tbl-wrap{overflow-x:auto}table.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:680px}table.tbl th{text-align:left;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px;padding:10px 8px;border-bottom:1px solid var(--line)}table.tbl td{padding:11px 8px;border-bottom:1px solid #f0ede5;vertical-align:top}.block-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));grid-gap:10px;gap:10px}.block-tile{border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:6px;border:1px dashed #9aa0ac;background:var(--card);text-align:left}.block-tile.open{border:2px solid var(--blue);background:var(--blue-soft)}.tabs{display:flex;flex-wrap:wrap;gap:8px}.tab{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);font-weight:600}.tab.on{background:var(--night);color:#fff;border-color:var(--night)}.field{min-height:44px;border-radius:12px;border:1px solid var(--line);background:var(--card);padding:0 12px}.projector{background:var(--night);color:#fff;min-height:100dvh}.projector .q{font-size:clamp(26px,3.4vw,46px);line-height:1.35;font-weight:600}.projector .opt{font-size:clamp(22px,2.6vw,36px);background:var(--night-2);border:2px solid var(--night-line);border-radius:18px;padding:18px 22px;color:#fff;text-align:left}.projector .opt.right{border-color:var(--amber);background:#2E2A1E}@media (max-width:380px){.big-word{font-size:38px}.tile{width:46px;height:50px}.slot{width:36px;height:46px}}