:root{
  --navy:#1a2e4a; --green:#2ecc71; --green-dark:#27ae60;
  --red:#e74c3c; --gray:#6c757d; --light-bg:#f4f8f6; --border:#dee2e6;
  --white:#ffffff; --shadow:0 4px 20px rgba(0,0,0,0.08);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',Arial,sans-serif;background:var(--light-bg);color:#333;font-size:14px}
a{color:var(--green-dark);text-decoration:none}
.topbar{background:var(--navy);color:#fff;padding:14px 24px;display:flex;justify-content:space-between;align-items:center}
.topbar .brand{font-weight:700;font-size:16px}
.topbar .brand span{color:var(--green)}
.topbar button{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;padding:6px 14px;border-radius:6px;cursor:pointer;font-size:13px}
.topbar button:hover{background:rgba(255,255,255,.1)}
.container{max-width:1100px;margin:0 auto;padding:24px}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--navy)}
.login-card{background:#fff;border-radius:12px;padding:36px;width:100%;max-width:360px;box-shadow:var(--shadow)}
.login-card h1{font-size:18px;color:var(--navy);margin-bottom:4px}
.login-card p{color:var(--gray);font-size:13px;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--navy);margin-bottom:5px}
.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:2px solid var(--border);border-radius:7px;font-size:14px;font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--green);color:#fff;border:none;padding:10px 18px;border-radius:7px;font-weight:600;cursor:pointer;font-size:13.5px}
.btn:hover{background:var(--green-dark)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-outline{background:transparent;border:2px solid var(--navy);color:var(--navy)}
.error-box{background:rgba(231,76,60,.08);border:1px solid var(--red);color:#c0392b;padding:10px 14px;border-radius:7px;font-size:13px;margin-bottom:14px;display:none}
.error-box.show{display:block}
.filters{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;align-items:center}
.filters select{padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:13px}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;box-shadow:var(--shadow)}
th,td{padding:12px 14px;text-align:left;font-size:13px;border-bottom:1px solid var(--border)}
th{background:var(--navy);color:#fff;font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
tr:last-child td{border-bottom:none}
tbody tr{cursor:pointer}
tbody tr:hover{background:var(--light-bg)}
.badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.3px}
.badge-NEW{background:#e8f0fe;color:#1967d2}
.badge-CONTACTED{background:#fff4e5;color:#b25e00}
.badge-INTERESTED{background:#e6f7ee;color:var(--green-dark)}
.badge-DEMO_SCHEDULED,.badge-DEMO_COMPLETED{background:#f0e8fe;color:#6a1fc0}
.badge-FOLLOW_UP{background:#fef6e0;color:#8a6d00}
.badge-WON{background:#2ecc71;color:#fff}
.badge-LOST{background:#f1f1f1;color:#888}
.dup-flag{color:var(--red);font-weight:700;font-size:11px;margin-left:6px}
.empty{text-align:center;padding:50px;color:var(--gray)}
.detail-card{background:#fff;border-radius:12px;padding:28px;box-shadow:var(--shadow);margin-bottom:20px}
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:20px}
.detail-grid .full{grid-column:1 / -1}
.detail-grid label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--gray);margin-bottom:3px}
.detail-grid div.val{font-size:14px;color:var(--navy);font-weight:600}
.action-row{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap}
.back-link{display:inline-block;margin-bottom:16px;font-size:13px;color:var(--navy);font-weight:600}
.loading{text-align:center;padding:40px;color:var(--gray)}