:root{
  --sidebar-bg:#0f1b2d; --sidebar-active:#1a3a5c; --sidebar-text:#a8c4e0; --sidebar-text-hover:#ffffff;
  --navbar-bg:#ffffff; --navbar-border:#e2e8f0;
  --body-bg:#f8fafc; --card-bg:#ffffff; --card-border:#e2e8f0;
  --primary:#1a56db; --primary-hover:#1648b8;
  --danger:#e02424; --success:#057a55; --warning:#c27803; --info:#1a56db;
  --text:#111827; --text-muted:#6b7280;
  --radius-card:8px; --radius-input:6px;
  --shadow-card:0 1px 3px rgba(0,0,0,0.08);
  --sidebar-w:260px; --navbar-h:60px;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--body-bg);color:var(--text);font-size:14px}
a{text-decoration:none}

/* Sidebar */
.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;background:var(--sidebar-bg);
  display:flex;flex-direction:column;z-index:1040;overflow-y:auto}
.sidebar .brand{padding:18px 22px;color:#fff;font-weight:600;font-size:17px;letter-spacing:.3px;
  border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:10px}
.sidebar .brand .dot{width:10px;height:10px;border-radius:50%;background:var(--primary)}
.sidebar .nav-section{padding:14px 22px 6px;color:#5f7898;font-size:11px;text-transform:uppercase;letter-spacing:.8px}
.sidebar a.nav-link{display:flex;align-items:center;gap:12px;padding:11px 22px;color:var(--sidebar-text);
  font-size:14px;border-left:3px solid transparent}
.sidebar a.nav-link i{width:18px;text-align:center;font-size:16px}
.sidebar a.nav-link:hover{color:var(--sidebar-text-hover);background:rgba(255,255,255,.04)}
.sidebar a.nav-link.active{color:#fff;background:var(--sidebar-active);border-left-color:var(--primary)}

/* Topbar */
.topbar{position:fixed;top:0;left:var(--sidebar-w);right:0;height:var(--navbar-h);background:var(--navbar-bg);
  border-bottom:1px solid var(--navbar-border);display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;z-index:1030}
.topbar .page-title{font-weight:600;font-size:16px}
.topbar .user-chip{display:flex;align-items:center;gap:10px;color:var(--text-muted);font-size:13px}

/* Main */
.main{margin-left:var(--sidebar-w);padding:calc(var(--navbar-h) + 24px) 24px 40px}

/* Cards */
.card{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card)}
.card .card-header{background:transparent;border-bottom:1px solid var(--card-border);font-weight:600;padding:14px 18px}
.card .card-body{padding:18px}

/* Stat cards */
.stat-card{display:flex;align-items:center;gap:16px;padding:18px}
.stat-card .icon{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;flex:0 0 auto}
.stat-card .icon.blue{background:var(--primary)} .stat-card .icon.green{background:var(--success)}
.stat-card .icon.red{background:var(--danger)} .stat-card .icon.amber{background:var(--warning)}
.stat-card .icon.slate{background:#475569} .stat-card .icon.purple{background:#7c3aed}
.stat-card .value{font-size:24px;font-weight:700;line-height:1}
.stat-card .label{color:var(--text-muted);font-size:12.5px;margin-top:4px}

/* Buttons */
.btn-primary{background:var(--primary);border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover)}

/* Risk badges */
.badge-risk{font-weight:600;font-size:11px;padding:4px 9px;border-radius:20px}
.risk-EXCELLENT,.risk-SMTP_VERIFIED{background:#dcfce7;color:#166534}
.risk-VALID{background:#dbeafe;color:#1e40af}
.risk-CATCH_ALL{background:#fef9c3;color:#854d0e}
.risk-TYPO{background:#ffedd5;color:#9a3412}
.risk-DISPOSABLE,.risk-INVALID{background:#fee2e2;color:#991b1b}
.risk-SUPPRESSED{background:#f3e8ff;color:#6b21a8}
.risk-DUPLICATE{background:#e5e7eb;color:#374151}

.status-pill{font-size:11px;padding:3px 8px;border-radius:5px;font-weight:500}
.pill-ok{background:#dcfce7;color:#166534}.pill-bad{background:#fee2e2;color:#991b1b}
.pill-warn{background:#fef9c3;color:#854d0e}.pill-muted{background:#f1f5f9;color:#64748b}

/* Table */
.table thead th{font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--text-muted);border-bottom:2px solid var(--card-border)}
.table td{vertical-align:middle;font-size:13px}
.table-hover tbody tr:hover{background:#f8fafc}

/* Auth */
.auth-wrap{display:flex;min-height:100vh}
.auth-left{flex:1;background:var(--sidebar-bg);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:60px}
.auth-left h1{font-weight:700;font-size:30px;margin-bottom:14px}
.auth-left p{color:var(--sidebar-text);font-size:15px;line-height:1.6;max-width:420px}
.auth-right{flex:1;display:flex;align-items:center;justify-content:center;padding:40px;background:#fff}
.auth-card{width:100%;max-width:380px}
.auth-card h2{font-weight:600;margin-bottom:6px}
.auth-card .sub{color:var(--text-muted);margin-bottom:26px;font-size:13.5px}
@media(max-width:860px){.auth-left{display:none}}

.form-label{font-weight:500;font-size:13px;margin-bottom:5px}
.form-control,.form-select{border-radius:var(--radius-input);font-size:14px}
.text-muted-sm{color:var(--text-muted);font-size:12px}

.progress-thin{height:10px;border-radius:6px}
.dropzone{border:2px dashed var(--card-border);border-radius:10px;padding:40px;text-align:center;color:var(--text-muted);cursor:pointer;transition:.15s}
.dropzone.drag{border-color:var(--primary);background:#eff4ff;color:var(--primary)}
.step-dot{width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:#e2e8f0;color:#64748b;font-weight:600;font-size:13px}
.step-dot.active{background:var(--primary);color:#fff}
.score-ring{font-weight:700;font-size:22px}