/* Mathkari · free practice papers · shared styles (pp.css v1.0) */
:root{--gold:#f5c842;--gold2:#d4a017;--ink:#1a0e00;--bg:#fffdf7;--card:#ffffff;--line:#e8e2d2;--text:#1f2937;--muted:#6b7280;--blue:#1d4ed8;--green:#15803d;--red:#b91c1c}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,sans-serif;color:var(--text);background:var(--bg);line-height:1.55}
a{color:var(--blue)}
.pp-top{background:var(--ink);color:#fff;padding:10px 16px}
.pp-top .in{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.pp-top img{width:42px;height:42px;border-radius:50%}
.pp-top .brand{font-weight:800;font-size:17px;color:#fff;text-decoration:none;line-height:1.1}
.pp-top .brand small{display:block;font-weight:500;font-size:11px;color:#cbbf9c;letter-spacing:.4px}
.pp-top nav{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}
.pp-top nav a{color:#fff;text-decoration:none;font-size:13px;font-weight:600;padding:8px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18)}
.pp-top nav a.cta{background:var(--gold);color:var(--ink);border-color:var(--gold)}
.pp-wrap{max-width:1080px;margin:0 auto;padding:18px 16px 48px}
.pp-crumbs{font-size:13px;color:var(--muted);margin:4px 0 14px}
.pp-crumbs a{color:var(--muted);text-decoration:none}
.pp-crumbs a:hover{text-decoration:underline}
h1{font-size:clamp(24px,3.4vw,36px);line-height:1.15;margin:0 0 10px;color:#111}
h2{font-size:22px;margin:30px 0 10px;color:#111}
h3{font-size:17px;margin:18px 0 6px}
.pp-lead{font-size:17px;color:#374151;max-width:760px}
.pp-facts{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}
.pp-facts span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;color:#374151}
.pp-facts span.free{background:#dcfce7;border-color:#bbf7d0;color:var(--green)}
.pp-btn{display:inline-block;border:0;border-radius:12px;padding:13px 22px;font-size:16px;font-weight:800;cursor:pointer;text-decoration:none;background:linear-gradient(135deg,var(--gold2),var(--gold));color:var(--ink);box-shadow:0 6px 18px rgba(212,160,23,.28)}
.pp-btn.sec{background:#fff;color:var(--text);border:1.5px solid var(--line);box-shadow:none}
.pp-btn.blue{background:var(--blue);color:#fff;box-shadow:none}
.pp-btn:disabled{opacity:.6;cursor:wait}
.pp-paper{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 20px;margin-top:16px}
.pp-paper .pp-sec{font-size:.95rem;font-weight:700;color:#fff;background:#C2410C;border-radius:8px;padding:5px 13px;display:inline-block;margin:18px 0 6px}
.pp-paper .pp-sec:first-child{margin-top:0}
.pp-q{padding:6px 0 10px;border-bottom:1px dashed #eee}
.pp-q p{margin:10px 0 0}
.pp-q input[type=text]{font:inherit}
.pp-q.ok{background:#f0fdf4}.pp-q.bad{background:#fef2f2}
.pp-q .pp-mark{font-size:13px;font-weight:700;margin-top:6px}
.pp-q.ok .pp-mark{color:var(--green)}.pp-q.bad .pp-mark{color:var(--red)}
.pp-q .pp-correct{outline:2px solid #22c55e;background:#dcfce7}
.pp-q .pp-chosen{outline:2px solid #f87171}
.pp-preview .pp-q{opacity:.95}
.pp-preview input{pointer-events:none}
.pp-gatebar{margin:14px 0 0;padding:16px;border-radius:14px;background:linear-gradient(135deg,#fff7df,#fff);border:1px solid #f1e3b5;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.pp-gatebar b{font-size:16px}
.pp-gatebar .sub{color:var(--muted);font-size:13px}
#pp-rest[hidden]{display:none}
.pp-bar{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line);padding:8px 12px;margin:0 -16px 10px;display:none;align-items:center;gap:14px;font-weight:700}
.pp-bar.on{display:flex}
.pp-bar .t{font-variant-numeric:tabular-nums;color:var(--red)}
.pp-bar .pp-btn{padding:8px 14px;font-size:14px;margin-left:auto}
.pp-result{margin-top:16px;padding:18px;border-radius:14px;background:#fff;border:2px solid var(--gold);display:none}
.pp-result.on{display:block}
.pp-result .score{font-size:34px;font-weight:900;color:var(--ink)}
.pp-next{margin-top:26px;padding:18px;border-radius:16px;background:var(--ink);color:#fff}
.pp-next h2{color:#fff;margin:0 0 6px;font-size:20px}
.pp-next p{margin:0 0 12px;color:#e9e2cf}
.pp-next .row{display:flex;gap:10px;flex-wrap:wrap}
.pp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-top:14px}
.pp-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;flex-direction:column;gap:6px}
.pp-card .tag{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.pp-card h3{margin:0;font-size:16px;line-height:1.3}
.pp-card h3 a{color:#111;text-decoration:none}
.pp-card h3 a:hover{text-decoration:underline}
.pp-card .meta{font-size:13px;color:var(--muted)}
.pp-card .desc{font-size:13px;color:#374151}
.pp-card .row{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:8px}
.pp-card .free{font-size:12px;font-weight:800;color:var(--green);background:#dcfce7;border-radius:999px;padding:3px 9px}
.pp-card .pp-btn{padding:9px 14px;font-size:14px}
.pp-exams{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-top:14px}
.pp-exams a{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;text-decoration:none;color:#111}
.pp-exams a b{display:block;font-size:17px}
.pp-exams a span{color:var(--muted);font-size:13px}
.pp-faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin:8px 0}
.pp-faq summary{font-weight:700;cursor:pointer}
.pp-foot{max-width:1080px;margin:0 auto;padding:18px 16px 30px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}
.pp-foot a{color:var(--muted)}
.pp-modal{position:fixed;inset:0;z-index:1000;background:rgba(15,23,42,.6);display:flex;align-items:center;justify-content:center;padding:16px}
.pp-modal .bx{background:#fff;border-radius:18px;max-width:420px;width:100%;padding:22px 20px;position:relative}
.pp-modal .x{position:absolute;top:8px;right:12px;border:0;background:none;font-size:20px;cursor:pointer;color:#888}
.pp-modal h3{margin:0 0 6px;font-size:19px}
.pp-modal p{margin:0 0 12px;font-size:14px;color:#444}
.pp-modal label{display:block;font-size:13px;font-weight:700;margin:10px 0 4px}
.pp-modal input,.pp-modal select{width:100%;font:inherit;font-size:16px;padding:10px;border:1.5px solid #cbd5e1;border-radius:10px}
.pp-modal .ph{display:flex;gap:8px}.pp-modal .ph select{width:112px}
.pp-modal .msg{min-height:18px;font-size:13px;color:var(--red);margin-top:8px}
.pp-modal .fine{font-size:12px;color:var(--muted);margin-top:10px}
.sr{position:absolute;left:-9999px}
@media (max-width:640px){.pp-top nav{margin-left:0;width:100%}.pp-top nav a{padding:7px 10px;font-size:12px}.pp-wrap{padding:14px 12px 40px}.pp-bar{margin:0 -12px 10px}.pp-paper{padding:14px}}
.pp-guide{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:6px 20px 16px}
.pp-guide h2{margin-top:14px}
.pp-guide h3{margin:16px 0 4px;font-size:16px;color:#111}
.pp-guide p{margin:0;color:#374151;font-size:15px}