:root{--bg:#f4f6fb;--card:#ffffff;--text:#0f172a;--muted:#64748b;--line:#e5e7eb;--primary:#2648b8;--secondary:#5b2bd9;--teal:#3bbfe9;--ok:#0f9d58;--okbg:#e9f8ef;--bad:#b42318;--badbg:#fdecec}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit}.wrap{max-width:1100px;margin:0 auto;padding:24px}.top{background:linear-gradient(90deg,var(--primary),var(--secondary));color:#fff;padding:22px 0}.brand{display:flex;gap:14px;align-items:center}.brand-logo{width:52px;height:52px;object-fit:contain;background:#fff;border-radius:14px;padding:8px;box-shadow:0 6px 20px rgba(12,24,56,.12)}.brand strong{font-size:18px;display:block}.brand small,.brand .muted{color:rgba(255,255,255,.86)}.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:0 12px 28px rgba(15,23,42,.05);margin:22px 0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.field label{font-weight:600}.field input,.field textarea,.field select{padding:14px 16px;border:1px solid #d9deea;border-radius:14px;font:inherit}.field textarea{min-height:120px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 18px;border-radius:14px;text-decoration:none;border:0;cursor:pointer;font-weight:700}.btn.primary{background:linear-gradient(90deg,var(--primary),var(--secondary));color:#fff}.btn.ghost{background:#eef2ff;color:#243b9b}.pill{display:inline-flex;align-items:center;padding:7px 12px;border-radius:999px;font-size:13px;font-weight:700}.pill.ok{background:var(--okbg);color:var(--ok)}.pill.bad{background:var(--badbg);color:var(--bad)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}.muted{color:var(--muted)}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.searchbox{display:flex;gap:8px;flex-wrap:wrap}.searchbox input{flex:1;min-width:240px}

/* Certificate */
.cert-wrap{padding:24px}.cert{max-width:1120px;margin:24px auto;background:#fff;border:12px solid #eef2ff;outline:2px solid #d8def8;padding:34px 42px 32px;position:relative;box-shadow:0 16px 44px rgba(15,23,42,.09)}.cert:before{content:"";position:absolute;inset:18px;border:1px solid #dce3fa;pointer-events:none}.cert-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;position:relative;z-index:1}.cert-brand{display:flex;align-items:center;gap:16px}.cert-brand img{width:86px;height:86px;object-fit:contain}.cert-brand .site{font-size:30px;font-weight:900;color:#1e3a8a;letter-spacing:-.02em}.cert-brand .tag{font-size:16px;color:#64748b;margin-top:4px}.cert-badge{font-size:12px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:#64748b;border:1px solid #dce3fa;padding:10px 14px;border-radius:999px;background:#f8faff}.cert-body{text-align:center;padding:28px 30px 10px;position:relative;z-index:1}.cert-kicker{font-size:18px;letter-spacing:.12em;text-transform:uppercase;color:#64748b;margin-top:4px}.cert h1{font-size:58px;line-height:1.02;margin:18px 0 22px;color:#2846ad;letter-spacing:-.03em}.cert-lead{font-size:18px;color:#334155;margin:8px 0}.cert .name{font-size:56px;line-height:1.08;font-weight:900;color:#4f2ac9;margin:22px auto;max-width:900px;letter-spacing:-.03em}.cert .course{font-size:34px;font-weight:900;color:#0f172a;margin:16px auto 10px;max-width:880px}.cert-detail{font-size:18px;line-height:1.65;color:#334155;max-width:900px;margin:18px auto 0}.cert-meta{display:grid;grid-template-columns:1.3fr .9fr;gap:22px;margin-top:28px;align-items:end;position:relative;z-index:1}.cert-info{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;align-self:end}.cert-info .item{padding:12px 0;border-top:1px solid #e6ebfb}.cert-info .label{display:block;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#64748b;margin-bottom:6px}.cert-info .value{font-size:18px;font-weight:700;color:#0f172a}.cert-qr{justify-self:end;text-align:center}.cert-qr img{width:168px;height:168px;border:1px solid #dde3f7;padding:8px;background:#fff}.cert-qr .muted{font-size:12px;max-width:190px;margin-top:8px}.cert-footer-line{margin-top:18px;height:5px;background:linear-gradient(90deg,#2648b8,#3bbfe9,#5b2bd9);border-radius:999px}.cert-watermark{position:absolute;right:44px;top:150px;width:180px;opacity:.05;pointer-events:none;z-index:0}
@media print{.no-print{display:none!important}body{background:#fff}.cert-wrap{padding:0}.cert{box-shadow:none;margin:0;max-width:none;min-height:760px}}
@media(max-width:820px){.cert{padding:28px 20px}.cert-head,.cert-meta{grid-template-columns:1fr;display:grid}.cert-brand{align-items:flex-start}.cert-brand img{width:72px;height:72px}.cert-brand .site{font-size:24px}.cert h1{font-size:38px}.cert .name{font-size:34px}.cert .course{font-size:26px}.cert-info{grid-template-columns:1fr}.cert-qr{justify-self:start}.cert-watermark{display:none}}