:root{--blue:#2e3192;--blue-d:#1f2270;--red:#e0202d;--red-d:#b81722;--ok:#1e9e54;--bg:#eef0fa;--ink:#1b1c3a}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh;display:flex;flex-direction:column}
.top{background:#fff;border-bottom:6px solid var(--red);display:flex;align-items:center;gap:16px;padding:10px 20px;box-shadow:0 2px 8px rgba(46,49,146,.15)}
.logo{height:72px;width:auto}
.top h1{margin:0;font-size:clamp(1.1rem,3.5vw,1.8rem);color:var(--blue)}
main{flex:1;width:100%;max-width:720px;margin:24px auto;padding:0 14px}
.card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 6px 20px rgba(46,49,146,.15);border-top:6px solid var(--blue)}
h2{margin-top:0;color:var(--blue)}
.hidden{display:none!important}
.field{display:block;margin-bottom:18px}
.field>span{display:block;font-weight:600;margin-bottom:6px;color:var(--blue-d)}
small{font-weight:400;color:#666}
input[type=number],#answer{width:100%;padding:12px;font-size:1.1rem;border:2px solid #c5c8ea;border-radius:10px}
input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(46,49,146,.2)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.chips button{border:2px solid var(--blue);background:#fff;color:var(--blue);border-radius:20px;padding:5px 14px;cursor:pointer;font-weight:600}
.chips button:hover{background:var(--blue);color:#fff}
.tables{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.tables label{display:flex;align-items:center;justify-content:center;gap:6px;border:2px solid #c5c8ea;border-radius:10px;padding:10px 4px;cursor:pointer;font-weight:700;user-select:none}
.tables input{accent-color:var(--red);width:16px;height:16px}
.tables label:has(input:checked){background:var(--blue);border-color:var(--blue);color:#fff}
.link{background:none;border:0;color:var(--blue);text-decoration:underline;cursor:pointer;margin-top:8px;padding:0}
.warn{background:#fff4f4;border-left:5px solid var(--red);padding:10px 12px;border-radius:6px;font-size:.95rem}
.error{color:var(--red-d);font-weight:600;min-height:1.2em}
.btn{border:0;border-radius:10px;padding:13px 26px;font-size:1.1rem;font-weight:700;cursor:pointer;color:#fff}
.btn.primary{background:var(--red)}
.btn.primary:hover{background:var(--red-d)}
.btn:disabled{opacity:.5;cursor:not-allowed}
#startBtn,#againBtn{width:100%}
.meta{display:flex;justify-content:space-between;font-weight:600;color:var(--blue-d);margin-bottom:8px}
.bar{height:12px;background:#dfe1f5;border-radius:8px;overflow:hidden}
#timeBar{height:100%;width:100%;background:var(--blue);transition:background .3s}
#timeBar.low{background:var(--red)}
.clock{text-align:center;font-size:1.4rem;font-weight:700;color:var(--blue);margin:10px 0 0}
.clock.low{color:var(--red)}
.question{text-align:center;font-size:clamp(2.6rem,12vw,4.5rem);font-weight:800;color:var(--blue);margin:14px 0}
#answerForm{display:flex;gap:10px}
#answer{font-size:2rem;text-align:center;font-weight:700}
.feedback{min-height:70px;margin-top:16px;text-align:center;font-size:1.3rem;font-weight:700;border-radius:12px;padding:12px}
.feedback.ok{background:#e6f7ee;color:var(--ok)}
.feedback.bad{background:#fdecee;color:var(--red-d)}
.shake{animation:shake .3s}
@keyframes shake{25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.final{text-align:center;font-size:3rem;font-weight:800;color:var(--blue)}
.msg{text-align:center;font-size:1.15rem}
.tablewrap{max-height:340px;overflow:auto;margin:14px 0;border:1px solid #dfe1f5;border-radius:10px}
table{width:100%;border-collapse:collapse;font-size:.95rem}
th{position:sticky;top:0;background:var(--blue);color:#fff}
th,td{padding:8px;text-align:center}
tr:nth-child(even) td{background:#f5f6fd}
td.ok{color:var(--ok);font-weight:700}
td.bad{color:var(--red-d);font-weight:700}
footer{text-align:center;padding:14px;color:#fff;background:var(--blue);font-size:.9rem}
@media(max-width:480px){.tables{grid-template-columns:repeat(4,1fr)}.logo{height:56px}#answerForm{flex-direction:column}}
.home{display:grid;gap:16px}.home h2{margin:0;text-align:center}
.tile{display:flex;gap:16px;align-items:center;text-align:left;width:100%;border:0;border-left:8px solid var(--red);border-radius:16px;background:#fff;padding:20px;box-shadow:0 6px 20px rgba(46,49,146,.15);cursor:pointer;font:inherit;color:var(--ink)}
.tile:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(46,49,146,.3)}
.tile .ic{font-size:2.6rem}.tile b{display:block;font-size:1.3rem;color:var(--blue)}
.back{margin-left:auto;background:var(--blue);color:#fff;border:0;border-radius:10px;padding:9px 14px;font-weight:700;cursor:pointer}
.txt{width:100%;padding:12px;font-size:1.4rem;border:2px solid #c5c8ea;border-radius:10px;text-align:center;font-weight:700}
.question.sm{font-size:clamp(1.4rem,5vw,2rem);line-height:1.3}
.radios label{display:block;padding:6px 0;cursor:pointer}
select{padding:10px;font-size:1rem;border-radius:10px;border:2px solid #c5c8ea}
.found{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;max-height:170px;overflow:auto}
.found span{background:var(--blue);color:#fff;border-radius:14px;padding:3px 10px;font-size:.85rem}
.found.miss span{background:#fdecee;color:var(--red-d)}
.btn.sec{background:var(--blue)}
.view{display:grid;gap:16px}
.hint{margin:0 0 10px;color:#555}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.grid button{border:2px solid var(--blue);background:#fff;color:var(--blue);border-radius:10px;padding:10px 4px;font:inherit;font-weight:700;cursor:pointer;font-size:.9rem}
.grid button:hover{background:var(--blue);color:#fff}
.card .tile{margin-bottom:12px;box-shadow:none;border:2px solid #dfe1f5;border-left:8px solid var(--red)}
.vert{display:grid;gap:2px;justify-content:center;margin:14px auto;font-family:"Courier New",monospace;font-size:clamp(1.5rem,7vw,2.4rem);font-weight:700;width:max-content;max-width:100%}
.vert i{font-style:normal;text-align:center;min-width:1.3ch;padding:0 3px;border-radius:5px;line-height:1.35}
.vert .cr{font-size:.55em;color:var(--red);min-height:1.3em;align-self:end}
.vert .ln{grid-column:1/-1;border-top:4px solid var(--blue);margin:2px 0}
.vert .hl{background:#ffe9a8}.vert .nw{background:#d6f5e3;color:var(--ok)}.vert .zr{color:var(--red)}.vert .sg{color:var(--red)}
.steptxt{background:#eef0fa;border-left:6px solid var(--blue);border-radius:8px;padding:12px;font-size:1.1rem;min-height:3.2em;margin:8px 0}
.steptxt b{color:var(--red-d)}
.nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.nav .btn{padding:10px 16px;font-size:1rem}
.parts{display:grid;grid-template-columns:auto auto;gap:6px 14px;justify-content:center;font-size:1.1rem;margin:8px 0}
.parts b{color:var(--blue)}
.ex h3{color:var(--red-d);margin:14px 0 4px}
#nextBtn{width:100%;margin-top:12px}
@media(max-width:600px){.grid{grid-template-columns:repeat(2,1fr)}}

.pair{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:6px}
.pair .field{flex:1;min-width:150px;margin-bottom:12px}
.pair .x{font-size:2rem;font-weight:800;color:var(--red);padding-bottom:22px}
.pair select{width:100%;padding:14px 12px;font-size:1.1rem;font-weight:600;color:var(--blue);background:#fff;cursor:pointer}
#startType{width:100%;margin-top:6px}
@media(max-width:600px){.pair .x{display:none}}