:root{--navy: #0e2a47;--blue: #2196f3;--red: #f1452f;--bg: #f4f6fa;--card: #ffffff;--line: #e3e8f0;--text: #1c2733;--muted: #71808f}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--blue);text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--navy);color:#cdd7e4;display:flex;flex-direction:column;padding:18px 0;flex-shrink:0}.sidebar .brand{font-size:20px;font-weight:700;color:#fff;padding:0 22px 18px;letter-spacing:.5px}.sidebar .brand span{color:var(--blue)}.sidebar nav a{display:block;padding:11px 22px;color:#cdd7e4;font-size:14px;border-left:3px solid transparent}.sidebar nav a:hover{background:#ffffff0d;color:#fff}.sidebar nav a.active{background:#2196f326;color:#fff;border-left-color:var(--blue)}.sidebar .foot{margin-top:auto;padding:12px 22px;font-size:12px;color:#6b7c92}.sidebar .foot button{background:none;border:1px solid #34506e;color:#cdd7e4;padding:6px 12px;border-radius:6px;cursor:pointer;margin-top:8px;width:100%}.main{flex:1;padding:28px 34px;max-width:1100px}.main h1{margin:0 0 4px;font-size:24px;color:var(--navy)}.main .sub{color:var(--muted);margin-bottom:24px;font-size:14px}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px}.card .num{font-size:30px;font-weight:700;color:var(--navy)}.card .lbl{color:var(--muted);font-size:13px;margin-top:4px}.panel{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:22px}.panel h2{margin:0 0 16px;font-size:17px;color:var(--navy)}label{display:block;font-size:13px;color:var(--muted);margin:12px 0 5px}input,textarea,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;background:#fff}textarea{min-height:120px;resize:vertical}.btn{background:var(--blue);color:#fff;border:none;padding:10px 18px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;margin-top:14px}.btn:hover{background:#1a82df}.btn.sec{background:#fff;color:var(--blue);border:1px solid var(--blue)}.btn.danger{background:#fff;color:var(--red);border:1px solid var(--red);padding:6px 12px;margin:0;font-size:13px}.btn:disabled{opacity:.5;cursor:default}.row{display:flex;gap:12px}.row>*{flex:1}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}.badge.sent,.badge.delivered{background:#e3f5e9;color:#1a7a3f}.badge.queued{background:#fff4e0;color:#a06a14}.badge.suppressed,.badge.failed,.badge.hard_bounce{background:#fde7e4;color:#c02d18}.msg{padding:10px 14px;border-radius:8px;margin:12px 0;font-size:14px}.msg.ok{background:#e3f5e9;color:#1a7a3f}.msg.err{background:#fde7e4;color:#c02d18}.mono{font-family:ui-monospace,Menlo,monospace;font-size:12px;word-break:break-all}.copy{cursor:pointer;color:var(--blue);font-size:12px;margin-left:8px}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-box{background:#fff;border-radius:14px;padding:38px;width:380px;box-shadow:0 10px 40px #0e2a471f}.login-box .brand{font-size:26px;font-weight:700;color:var(--navy);text-align:center;margin-bottom:6px}.login-box .brand span{color:var(--blue)}.login-box p{text-align:center;color:var(--muted);font-size:13px;margin-bottom:18px}