:root{
  --bg:#0a0e14; --bg2:#11161f; --ink:#fff; --muted:#9aa3b2;
  --accent:#39ff14; --warn:#ff8800; --bad:#e74c3c;
  --o1:#3b82f6; --o2:#f59e0b; --o3:#ef4444; --o4:#10b981;
  --border:rgba(255,255,255,.08);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',-apple-system,system-ui,sans-serif;min-height:100vh}
body{display:flex;flex-direction:column;max-width:640px;margin:0 auto;min-height:100vh}
.hdr{display:flex;align-items:center;gap:10px;padding:8px 14px;background:var(--bg2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}
.hdr-photo{width:52px;height:52px;border-radius:50%;object-fit:cover;border:3px solid var(--accent);flex-shrink:0;box-shadow:0 2px 10px rgba(57,255,20,.3)}
.hdr .name{font-weight:900;font-size:15px;line-height:1.2}
.hdr .name span.cred{display:block;font-size:10.5px;color:var(--muted);font-weight:600;line-height:1.35}
.hdr .name span.cred-stat{color:var(--accent);font-weight:800}
.btn-menu{padding:6px 10px;border-radius:8px;border:1px solid var(--border);background:transparent;color:var(--ink);font-weight:800;font-size:11.5px;cursor:pointer;font-family:inherit;margin-bottom:3px;white-space:nowrap}
.btn-menu:active{transform:scale(.95)}
.hdr-right{margin-left:auto;text-align:right}
.hdr-q{font-size:11px;color:var(--muted);white-space:nowrap}
.hdr-score{font-size:22px;font-weight:900;color:var(--accent);line-height:1}
.screen{display:none;padding:14px 14px 24px;flex:1;flex-direction:column;gap:12px}
.screen.active{display:flex}
.title{font-size:22px;font-weight:900;line-height:1.15;margin:4px 0 0}
.subtitle{color:var(--muted);font-size:13.5px;margin:0;line-height:1.5}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{padding:8px 13px;border-radius:999px;border:1px solid var(--border);background:var(--bg2);color:var(--muted);font-weight:800;font-size:12px;cursor:pointer;font-family:inherit}
.chip.active{color:#06160a;background:var(--accent);border-color:var(--accent)}
.chip:active{transform:scale(.96)}
.menu{display:grid;grid-template-columns:1fr 1fr 1fr;gap:7px}
@media (min-width:520px){.menu{grid-template-columns:1fr 1fr 1fr 1fr}}
.tile{position:relative;padding:7px;border-radius:11px;background:var(--bg2);border:1px solid var(--border);cursor:pointer;text-align:left;color:#fff;font-family:inherit;display:flex;flex-direction:column;gap:5px}
.tile .thumb{width:100%;height:auto;border-radius:8px;border:1px solid #1f2937;display:block}
.tile:active{transform:scale(.97)}
.tile .tnum{font-size:9px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.tile .tname{font-size:11px;font-weight:800;line-height:1.2;margin-top:1px}
.tile .tscore{margin-top:3px;font-size:10.5px;font-weight:900;color:var(--accent)}
.tile.done{border-color:rgba(57,255,20,.45)}
.q-text{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:11px 13px;font-size:15px;line-height:1.45;font-weight:600}
.q-text .qnum{display:block;font-size:11px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.q-text .instruction{display:block;margin-top:6px;font-size:12px;font-weight:800;color:var(--warn)}
.hint{font-size:11.5px;color:var(--muted);text-align:center;margin:-6px 0 0}
.diag-wrap{background:#fff;border-radius:12px;padding:4px;border:2px solid #1f2937}
svg{display:block;width:100%;height:auto}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.opt{display:flex;align-items:flex-start;gap:8px;padding:11px 10px;border-radius:12px;text-align:left;cursor:pointer;font-weight:700;font-size:13.5px;line-height:1.3;color:#fff;border:2px solid transparent;background:var(--bg2);transition:transform .08s,filter .15s;min-height:52px;font-family:inherit}
.opt .key{flex-shrink:0;width:24px;height:24px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:13px;color:#fff}
.opt[data-k="1"]{border-color:rgba(59,130,246,.55)} .opt[data-k="1"] .key{background:var(--o1)}
.opt[data-k="2"]{border-color:rgba(245,158,11,.55)} .opt[data-k="2"] .key{background:var(--o2);color:#1a0f02}
.opt[data-k="3"]{border-color:rgba(239,68,68,.55)} .opt[data-k="3"] .key{background:var(--o3)}
.opt[data-k="4"]{border-color:rgba(16,185,129,.55)} .opt[data-k="4"] .key{background:var(--o4)}
.opt:active{transform:scale(.97)}
.opt.correct{box-shadow:0 0 0 3px var(--accent),0 0 18px rgba(57,255,20,.5);animation:pulse .4s ease}
.opt.wrong{filter:saturate(.4) brightness(.6);opacity:.55}
@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.04)}100%{transform:scale(1)}}
.fb{padding:12px;border-radius:12px;font-weight:700;text-align:center;font-size:14px;line-height:1.45;display:none}
.fb.show{display:block}
.fb.ok{background:rgba(57,255,20,.12);color:var(--accent);border:1px solid var(--accent)}
.fb.bad{background:rgba(231,76,60,.12);color:#ff9a8d;border:1px solid var(--bad)}
.fb .big{font-size:22px;display:block;margin-bottom:2px}
.chain{padding:11px 13px;border-radius:9px;background:rgba(255,255,255,.05);border-left:3px solid var(--warn);color:#e8eaee;font-weight:500;font-size:13px;line-height:1.55;text-align:left}
.chain b{color:var(--warn)}
.btn-primary{display:block;width:100%;padding:15px;border:none;border-radius:12px;background:linear-gradient(180deg,var(--accent),#28c00d);color:#06160a;font-size:16px;font-weight:900;cursor:pointer;text-transform:uppercase;letter-spacing:.5px;box-shadow:0 4px 14px rgba(57,255,20,.3);font-family:inherit}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{display:block;width:100%;padding:12px;border:1px solid var(--border);border-radius:10px;background:transparent;color:var(--ink);font-size:14px;font-weight:700;cursor:pointer;font-family:inherit}
.report{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:14px}
.report h3{margin:0 0 8px;font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--warn)}
.report .row{display:flex;gap:8px;padding:7px 0;border-bottom:1px solid var(--border);font-size:12.5px;line-height:1.4;align-items:flex-start}
.report .row:last-child{border-bottom:none}
.report .mark{flex-shrink:0;font-weight:900}
.report .mark.ok{color:var(--accent)} .report .mark.no{color:var(--bad)}
.report .mc{color:var(--warn);font-weight:700}
.report .note{font-size:11.5px;color:var(--muted);margin-top:10px;line-height:1.5}
.valerr{background:#7f1d1d;color:#fff;padding:10px 14px;font-size:12px;line-height:1.5;border-radius:10px;margin:10px 14px 0;white-space:pre-wrap}