:root{--bg:#f5f7fb;--card:#fff;--text:#18202a;--muted:#667085;--line:#e5e7eb;--primary:#2563eb;--danger:#b42318;--ok:#027a48;--warn:#b54708}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:#1d4ed8;text-decoration:none}.top{height:64px;background:#111827;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:5}.top a{color:white}.brand{font-weight:800;font-size:20px}.top nav{display:flex;gap:22px;align-items:center}.container{max-width:1320px;margin:28px auto;padding:0 20px}.heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}h1{margin:0 0 8px;font-size:30px}h2{margin-top:0}.muted,.hint{color:var(--muted)}.hint{font-size:13px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 1px 2px rgba(16,24,40,.04)}.stats{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin:20px 0}.stats.small{grid-template-columns:repeat(6,1fr)}.stat{background:white;border:1px solid var(--line);border-radius:12px;padding:16px}.stat span{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}.stat strong{font-size:24px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.form label,.grid2 label,.grid5 label{display:block;font-weight:600;font-size:14px;margin-bottom:15px}input,select,textarea{width:100%;margin-top:7px;border:1px solid #cfd4dc;border-radius:8px;padding:10px 12px;font:inherit;background:white}textarea{font-family:inherit}.btn{display:inline-block;border:1px solid #cfd4dc;background:#fff;color:#111827;border-radius:8px;padding:9px 14px;font-weight:700;cursor:pointer}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn.warn{background:#fff7ed;border-color:#fed7aa;color:var(--warn)}.linkbtn{background:none;border:0;color:#2563eb;padding:0;cursor:pointer;font:inherit}.inline{display:inline}.alert{padding:12px 15px;border-radius:8px;margin-bottom:18px}.alert.ok{background:#ecfdf3;color:var(--ok);border:1px solid #abefc6}.alert.error{background:#fef3f2;color:var(--danger);border:1px solid #fecdca}table{width:100%;border-collapse:collapse}th,td{text-align:left;border-bottom:1px solid var(--line);padding:11px 9px;vertical-align:top}th{color:var(--muted);font-size:12px;text-transform:uppercase}.badge{display:inline-block;background:#eef2ff;border-radius:999px;padding:4px 8px;font-size:12px}.badge.valid,.badge.accepted{background:#ecfdf3;color:#027a48}.badge.invalid,.badge.bounced,.badge.do_not_mail{background:#fef3f2;color:#b42318}.badge.unknown,.badge.catch_all,.badge.deferred{background:#fffaeb;color:#b54708}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.smalltext{font-size:12px;max-width:480px;word-break:break-word}.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login .card{width:420px}.login h1{font-size:34px}@media(max-width:900px){.stats,.stats.small,.grid5{grid-template-columns:repeat(2,1fr)}.grid2{grid-template-columns:1fr}.top{padding:0 14px}.top nav{gap:10px;font-size:13px}.container{padding:0 10px}table{font-size:13px}.heading{align-items:flex-start;flex-direction:column}}