:root{--color-bg:#f5f6f8;--color-surface:#fff;--color-border:#e2e5ea;--color-text:#1b1f27;--color-text-muted:#6b7280;--color-primary:#3855e8;--color-primary-hover:#2c42c4;--color-danger:#d1435b;--color-success:#1f9d55;--radius:8px;--shadow:0 1px 2px #1018280f}*{box-sizing:border-box}body{background:var(--color-bg);color:var(--color-text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--color-primary);text-decoration:none}button{cursor:pointer;font-family:inherit}.btn{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);border-radius:var(--radius);align-items:center;gap:6px;padding:8px 14px;font-size:14px;font-weight:500;transition:background .15s,border-color .15s;display:inline-flex}.btn:hover{background:#f0f1f4}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-danger{background:var(--color-danger);border-color:var(--color-danger);color:#fff}.btn-sm{padding:5px 10px;font-size:13px}.input,select.input,textarea.input{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-surface);width:100%;color:var(--color-text);padding:8px 10px;font-size:14px}.input:focus{outline:2px solid var(--color-primary);outline-offset:-1px}.field{flex-direction:column;gap:4px;margin-bottom:14px;display:flex}.field label{color:var(--color-text-muted);font-size:13px;font-weight:600}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--color-surface);border-right:1px solid var(--color-border);flex-direction:column;gap:4px;width:220px;padding:20px 14px;display:flex}.sidebar h1{margin:0 8px 20px;font-size:17px}.sidebar a,.sidebar .nav-link{border-radius:var(--radius);color:var(--color-text);padding:9px 10px;font-size:14px;font-weight:500;display:block}.sidebar a.active,.sidebar a:hover{color:var(--color-primary);background:#eef0fb}.sidebar .user-box{border-top:1px solid var(--color-border);color:var(--color-text-muted);margin-top:auto;padding-top:12px;font-size:13px}.main-content{flex:1;max-width:1200px;padding:28px 32px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.page-header h2{margin:0;font-size:22px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:24px;display:grid}.stat-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}.stat-card .value{font-size:26px;font-weight:700}.stat-card .label{color:var(--color-text-muted);margin-top:2px;font-size:13px}table{border-collapse:collapse;width:100%;font-size:14px}thead th{text-align:left;text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);border-bottom:1px solid var(--color-border);padding:10px 12px;font-size:12px}tbody td{border-bottom:1px solid var(--color-border);vertical-align:middle;padding:10px 12px}tbody tr:hover{background:#fafbfc}.badge{text-transform:capitalize;border-radius:999px;padding:3px 9px;font-size:12px;font-weight:600;display:inline-block}.badge-new{color:#3b46c9;background:#e4e7fb}.badge-contacted{color:#92720b;background:#fff3cd}.badge-engaged{color:#10744a;background:#d9f2e6}.badge-converted{color:#1f7d38;background:#d3f2d9}.badge-dead{color:#a3313f;background:#fbe3e3}.toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;display:flex}.modal-overlay{z-index:50;background:#0f121973;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-box{background:var(--color-surface);border-radius:10px;width:100%;max-width:520px;max-height:88vh;padding:24px;overflow-y:auto;box-shadow:0 10px 40px #0003}.modal-box h3{margin-top:0}.alert{border-radius:var(--radius);margin-bottom:14px;padding:10px 14px;font-size:14px}.alert-error{color:#a3313f;background:#fdecec;border:1px solid #f7cfd2}.alert-success{color:#1f7d38;background:#e8f8ee;border:1px solid #c8ecd6}.muted{color:var(--color-text-muted)}.text-sm{font-size:13px}.flex-between{justify-content:space-between;align-items:center;display:flex}.checkbox-cell{width:34px}.auth-screen{background:var(--color-bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.auth-card{background:var(--color-surface);border:1px solid var(--color-border);width:380px;box-shadow:var(--shadow);border-radius:12px;padding:32px}.auth-card h1{margin-bottom:4px;font-size:20px}.auth-card p.muted{margin-top:0;margin-bottom:20px}.tag-list{flex-wrap:wrap;gap:6px;display:flex}.tag{color:#3b46c9;background:#eef0fb;border-radius:999px;padding:2px 8px;font-size:12px}