:root{
  --bg:#0f172a; --panel:#111827; --panel2:#18223a; --card:#ffffff; --text:#e5e7eb; --muted:#94a3b8; --ink:#172033;
  --accent:#7c3aed; --accent2:#06b6d4; --good:#16a34a; --bad:#dc2626; --warn:#f59e0b;
  --radius:24px; --shadow:0 24px 80px rgba(0,0,0,.22);
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;background:radial-gradient(circle at top left,#243b67 0,#0f172a 42%,#020617 100%);color:var(--text);line-height:1.55}.shell{width:min(1180px,92vw);margin:0 auto;padding:28px 0 70px}.hero{padding:26px;margin-bottom:22px}.top{display:flex;justify-content:space-between;gap:16px;align-items:center;flex-wrap:wrap}.brand{display:flex;gap:10px;align-items:center;font-weight:900;}.brand-mark{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#fff}.nav{display:flex;gap:10px;flex-wrap:wrap}.nav a,.btn{border:0;border-radius:999px;padding:10px 14px;text-decoration:none;font-weight:800;cursor:pointer}.nav a{color:#e0f2fe;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14)}.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}.btn.ghost{background:#eef2ff;color:#3730a3}.btn.light{background:#fff;color:#0f172a}.eyebrow{text-transform:uppercase;font-size:.72rem;color:#bae6fd;font-weight:900;margin:0 0 8px}.hero h1{font-size:clamp(2.1rem,5vw,4.7rem);line-height:.95;margin:20px 0 14px}.hero p{max-width:820px;color:#dbeafe;font-size:1.08rem}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.panel{grid-column:span 12;background:rgba(255,255,255,.95);color:var(--ink);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.panel.dark{background:rgba(15,23,42,.72);color:var(--text);border:1px solid rgba(255,255,255,.12)}.two{grid-column:span 6}.section-title{display:flex;justify-content:space-between;align-items:end;gap:14px;flex-wrap:wrap;margin-bottom:18px}.section-title h2{margin:0;font-size:1.8rem}.muted{color:#64748b}.dark .muted{color:#cbd5e1}.card{border:1px solid #e5e7eb;background:#fff;border-radius:20px;padding:18px;margin:12px 0}.dark .card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}.question{font-size:1.2rem;font-weight:900;margin:0 0 14px}.choices{display:grid;gap:10px}.choice{width:100%;text-align:left;border:1px solid #dbe2ef;background:#f8fafc;border-radius:16px;padding:13px 14px;cursor:pointer;font-weight:700;color:#172033}.choice:hover{border-color:#7c3aed;transform:translateY(-1px)}.choice.correct{background:#dcfce7;border-color:#22c55e;color:#14532d}.choice.wrong{background:#fee2e2;border-color:#ef4444;color:#7f1d1d}.feedback{margin-top:12px;border-radius:16px;padding:12px 14px;font-weight:800;display:none}.feedback.show{display:block}.feedback.good{background:#dcfce7;color:#14532d}.feedback.bad{background:#fee2e2;color:#7f1d1d}.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.progress{height:12px;background:#e2e8f0;border-radius:99px;overflow:hidden}.bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:.25s}.score-pill{background:#eef2ff;color:#3730a3;border-radius:999px;padding:8px 12px;font-weight:900}.match-row{display:grid;grid-template-columns:220px 1fr;gap:12px;align-items:center;margin:10px 0}.match-row label{font-weight:900}.match-row select,.search,input,textarea{width:100%;border:1px solid #cbd5e1;border-radius:14px;padding:12px 14px;font:inherit}.mini-result{font-size:.94rem;margin-top:6px;font-weight:800}.ok{color:var(--good)}.ko{color:var(--bad)}.tag{display:inline-flex;margin:4px 4px 0 0;border-radius:999px;background:#eef2ff;color:#3730a3;padding:5px 9px;font-size:.82rem;font-weight:900}.case-text{background:#f8fafc;border-left:5px solid var(--accent);padding:16px;border-radius:14px;white-space:pre-wrap}.reveal{display:none;margin-top:12px}.reveal.show{display:block}.footer{margin-top:26px;text-align:center;color:#cbd5e1}.audio-note{font-size:.9rem;color:#64748b}@media(max-width:860px){.two,.match-row{grid-template-columns:1fr}.hero{padding:20px}.nav a,.btn{width:auto}.shell{width:min(96vw,1180px)}}

:root{--bg:#0f172a;--card:#111c34;--card2:#16213e;--text:#f8fafc;--muted:#a7b0c3;--line:rgba(255,255,255,.12);--accent:#8b5cf6;--accent2:#06b6d4;--ok:#22c55e;--bad:#ef4444;--warn:#f59e0b}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top left,#273c75 0,#0f172a 38%,#08111f 100%);color:var(--text);min-height:100vh}.wrap{width:min(1180px,92vw);margin:auto}.top{position:sticky;top:0;z-index:5;background:rgba(8,17,31,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:900;}.logo{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;box-shadow:0 14px 40px rgba(139,92,246,.35)}.links{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.links a{color:var(--muted);text-decoration:none;padding:9px 12px;border:1px solid transparent;border-radius:999px;font-weight:700;font-size:.9rem}.links a:hover,.links a.active{color:white;border-color:var(--line);background:rgba(255,255,255,.06)}header.hero{padding:54px 0 24px}.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(139,92,246,.45);background:rgba(139,92,246,.12);color:#ddd6fe;border-radius:999px;padding:7px 12px;font-size:.85rem;font-weight:800}.hero h1{font-size:clamp(2.1rem,5vw,4.5rem);line-height:1;margin:16px 0 12px;}.hero p{color:var(--muted);max-width:820px;font-size:1.08rem;line-height:1.7}.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;margin:24px auto 60px}@media(max-width:900px){.grid{grid-template-columns:1fr}.nav{align-items:flex-start;flex-direction:column}.links{justify-content:flex-start}}.card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));border:1px solid var(--line);border-radius:28px;box-shadow:0 22px 70px rgba(0,0,0,.25);overflow:hidden}.card.pad{padding:24px}.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px}.section-title h2{margin:0;font-size:1.35rem}.section-title small{color:var(--muted)}.toolbar{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.input,.select{background:rgba(255,255,255,.07);color:white;border:1px solid var(--line);border-radius:14px;padding:12px 13px;outline:none}.input{flex:1;min-width:230px}.select option{color:#111}.btn{border:0;border-radius:16px;padding:12px 16px;font-weight:900;cursor:pointer;color:white;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 12px 30px rgba(6,182,212,.18)}.btn.secondary{background:rgba(255,255,255,.08);border:1px solid var(--line);box-shadow:none}.btn.danger{background:rgba(239,68,68,.16);border:1px solid rgba(239,68,68,.35);box-shadow:none}.btn:disabled{opacity:.5;cursor:not-allowed}.meta{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag{border:1px solid var(--line);background:rgba(255,255,255,.06);padding:6px 9px;border-radius:999px;color:var(--muted);font-size:.78rem;font-weight:800}.tag.ok{color:#bbf7d0;border-color:rgba(34,197,94,.35);background:rgba(34,197,94,.1)}.tag.warn{color:#fde68a;border-color:rgba(245,158,11,.35);background:rgba(245,158,11,.1)}.question-box{padding:24px;border-top:1px solid var(--line);background:rgba(0,0,0,.12)}.question-text{font-size:1.35rem;line-height:1.45;margin:0 0 18px;font-weight:900}.quote{border-left:4px solid var(--accent2);background:rgba(6,182,212,.08);padding:14px 15px;border-radius:14px;margin:14px 0;color:#dff9ff}.answers{display:grid;gap:10px}.answer{width:100%;text-align:left;border:1px solid var(--line);background:rgba(255,255,255,.065);color:white;border-radius:18px;padding:14px 15px;cursor:pointer;font-size:1rem;line-height:1.35}.answer:hover{background:rgba(255,255,255,.1)}.answer.correct{border-color:rgba(34,197,94,.8);background:rgba(34,197,94,.18)}.answer.wrong{border-color:rgba(239,68,68,.8);background:rgba(239,68,68,.16)}.feedback{margin-top:14px;padding:15px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.06);line-height:1.55;color:#e5e7eb}.progress{height:10px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}.bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:.25s}.statgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stat{padding:16px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.055)}.stat b{font-size:1.6rem;display:block}.stat span{color:var(--muted);font-size:.86rem}.list{display:grid;gap:12px;max-height:640px;overflow:auto;padding-right:3px}.mini{padding:14px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.045)}.mini h3{margin:0 0 6px;font-size:1rem}.mini p{margin:0;color:var(--muted);line-height:1.45}.footer{color:var(--muted);border-top:1px solid var(--line);padding:28px 0 48px;font-size:.92rem}.hidden{display:none!important}code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:8px}.kbd{font-family:ui-monospace,Menlo,monospace;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:8px;padding:2px 6px;color:#e0f2fe}


:root{--bg:#0f172a;--card:#111c34;--card2:#16213e;--text:#f8fafc;--muted:#a7b0c3;--line:rgba(255,255,255,.12);--accent:#8b5cf6;--accent2:#06b6d4;--ok:#22c55e;--bad:#ef4444;--warn:#f59e0b}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top left,#273c75 0,#0f172a 38%,#08111f 100%);color:var(--text);min-height:100vh}.wrap{width:min(1180px,92vw);margin:auto}.top{position:sticky;top:0;z-index:5;background:rgba(8,17,31,.86);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}.brand{display:flex;align-items:center;gap:10px;font-weight:900;}.logo{width:38px;height:38px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;box-shadow:0 14px 40px rgba(139,92,246,.35)}.links{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.links a{color:var(--muted);text-decoration:none;padding:9px 12px;border:1px solid transparent;border-radius:999px;font-weight:700;font-size:.9rem}.links a:hover,.links a.active{color:white;border-color:var(--line);background:rgba(255,255,255,.06)}header.hero{padding:54px 0 24px}.pill{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(139,92,246,.45);background:rgba(139,92,246,.12);color:#ddd6fe;border-radius:999px;padding:7px 12px;font-size:.85rem;font-weight:800}.hero h1{font-size:clamp(2.1rem,5vw,4.5rem);line-height:1;margin:16px 0 12px;}.hero p{color:var(--muted);max-width:820px;font-size:1.08rem;line-height:1.7}.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;margin:24px auto 60px}@media(max-width:900px){.grid{grid-template-columns:1fr}.nav{align-items:flex-start;flex-direction:column}.links{justify-content:flex-start}}.card{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));border:1px solid var(--line);border-radius:28px;box-shadow:0 22px 70px rgba(0,0,0,.25);overflow:hidden}.card.pad{padding:24px}.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:18px}.section-title h2{margin:0;font-size:1.35rem}.section-title small{color:var(--muted)}.toolbar{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}.input,.select{background:rgba(255,255,255,.07);color:white;border:1px solid var(--line);border-radius:14px;padding:12px 13px;outline:none}.input{flex:1;min-width:230px}.select option{color:#111}.btn{border:0;border-radius:16px;padding:12px 16px;font-weight:900;cursor:pointer;color:white;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 12px 30px rgba(6,182,212,.18)}.btn.secondary{background:rgba(255,255,255,.08);border:1px solid var(--line);box-shadow:none}.btn.danger{background:rgba(239,68,68,.16);border:1px solid rgba(239,68,68,.35);box-shadow:none}.btn:disabled{opacity:.5;cursor:not-allowed}.meta{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag{border:1px solid var(--line);background:rgba(255,255,255,.06);padding:6px 9px;border-radius:999px;color:var(--muted);font-size:.78rem;font-weight:800}.tag.ok{color:#bbf7d0;border-color:rgba(34,197,94,.35);background:rgba(34,197,94,.1)}.tag.warn{color:#fde68a;border-color:rgba(245,158,11,.35);background:rgba(245,158,11,.1)}.question-box{padding:24px;border-top:1px solid var(--line);background:rgba(0,0,0,.12)}.question-text{font-size:1.35rem;line-height:1.45;margin:0 0 18px;font-weight:900}.quote{border-left:4px solid var(--accent2);background:rgba(6,182,212,.08);padding:14px 15px;border-radius:14px;margin:14px 0;color:#dff9ff}.answers{display:grid;gap:10px}.answer{width:100%;text-align:left;border:1px solid var(--line);background:rgba(255,255,255,.065);color:white;border-radius:18px;padding:14px 15px;cursor:pointer;font-size:1rem;line-height:1.35}.answer:hover{background:rgba(255,255,255,.1)}.answer.correct{border-color:rgba(34,197,94,.8);background:rgba(34,197,94,.18)}.answer.wrong{border-color:rgba(239,68,68,.8);background:rgba(239,68,68,.16)}.feedback{margin-top:14px;padding:15px;border-radius:18px;border:1px solid var(--line);background:rgba(255,255,255,.06);line-height:1.55;color:#e5e7eb}.progress{height:10px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}.bar{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:.25s}.statgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stat{padding:16px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.055)}.stat b{font-size:1.6rem;display:block}.stat span{color:var(--muted);font-size:.86rem}.list{display:grid;gap:12px;max-height:640px;overflow:auto;padding-right:3px}.mini{padding:14px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.045)}.mini h3{margin:0 0 6px;font-size:1rem}.mini p{margin:0;color:var(--muted);line-height:1.45}.footer{color:var(--muted);border-top:1px solid var(--line);padding:28px 0 48px;font-size:.92rem}.hidden{display:none!important}code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:8px}.kbd{font-family:ui-monospace,Menlo,monospace;background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:8px;padding:2px 6px;color:#e0f2fe}


.revision-tech{
  margin: 10px auto 70px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(6,182,212,.18), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.04));
  box-shadow: 0 22px 70px rgba(0,0,0,.24);
}

.revision-head{
  max-width: 820px;
  margin-bottom: 22px;
}

.revision-head h2{
  margin: 14px 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1.05;
}

.revision-head p{
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.revision-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.revision-grid article{
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.055);
}

.revision-grid h3{
  margin: 0 0 8px;
  color: #e0f2fe;
  font-size: 1rem;
}

.revision-grid p{
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: .95rem;
}

.revision-grid article:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.08);
  border-color: rgba(6,182,212,.35);
}

@media(max-width: 1000px){
  .revision-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media(max-width: 620px){
  .revision-tech{ padding: 20px; }
  .revision-grid{ grid-template-columns: 1fr; }
}

.revision-grid ul{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.55;
  font-size: .92rem;
}

.revision-grid li{
  margin: 6px 0;
}

.revision-grid li::marker{
  color: var(--accent2);
}

.revision-grid article{
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.revision-grid article h3{
  line-height: 1.25;
}

.input {
  border: 1px solid black;
  color: black;
}