:root{--color-bg: #f5f6f8;--color-surface: #ffffff;--color-border: #e2e5e9;--color-text: #1c1f24;--color-text-muted: #6b7280;--color-primary: #2f5dd6;--color-primary-dark: #24479f;--color-success: #1e8e5a;--color-success-bg: #e6f6ee;--color-warning: #b46a00;--color-warning-bg: #fff3e0;--color-danger: #c2372a;--color-danger-bg: #fdecea;--color-muted-bg: #eef0f3;--radius: 8px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--color-bg);color:var(--color-text)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--color-surface);border-right:1px solid var(--color-border);padding:20px 14px;flex-shrink:0}.sidebar-brand{font-weight:700;font-size:16px;padding:0 8px 20px}.sidebar-brand span{color:var(--color-primary)}.sidebar nav{display:flex;flex-direction:column;gap:2px}.sidebar nav a,.sidebar nav .disabled-link{padding:9px 10px;border-radius:var(--radius);color:var(--color-text);font-size:14px}.sidebar nav a.active{background:var(--color-primary);color:#fff}.sidebar nav a:hover{background:var(--color-muted-bg);text-decoration:none}.main-content{flex:1;min-width:0}.topbar{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:var(--color-surface);border-bottom:1px solid var(--color-border)}.topbar .user-info{font-size:13px;color:var(--color-text-muted);display:flex;align-items:center;gap:12px}.role-badge{font-size:11px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--color-muted-bg);color:var(--color-text)}.page{padding:24px;max-width:1200px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:10px}.page-header h1{font-size:20px;margin:0}.page-subtitle{color:var(--color-text-muted);font-size:13px;margin-top:4px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:18px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:20px}.stat-card .stat-label{font-size:12px;color:var(--color-text-muted);margin-bottom:6px}.stat-card .stat-value{font-size:26px;font-weight:700}.stat-card.warning .stat-value{color:var(--color-warning)}table{width:100%;border-collapse:collapse;font-size:14px}thead th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);border-bottom:1px solid var(--color-border);padding:10px 12px}tbody td{padding:12px;border-bottom:1px solid var(--color-border)}tbody tr:hover{background:var(--color-muted-bg)}tbody tr.clickable{cursor:pointer}.badge{display:inline-block;font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px}.badge-lead,.badge-draft{background:var(--color-warning-bg);color:var(--color-warning)}.badge-active,.badge-confirmed{background:var(--color-success-bg);color:var(--color-success)}.badge-inactive,.badge-cancelled{background:var(--color-danger-bg);color:var(--color-danger)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius);border:1px solid transparent;font-size:14px;font-weight:600;cursor:pointer;background:var(--color-primary);color:#fff}.btn:hover{background:var(--color-primary-dark)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}.btn-secondary:hover{background:var(--color-muted-bg)}.btn-danger{background:var(--color-danger)}.btn-danger:hover{background:#9c2c21}.btn-sm{padding:5px 10px;font-size:13px}.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}input,select,textarea{font-family:inherit;font-size:14px;padding:8px 10px;border:1px solid var(--color-border);border-radius:var(--radius);background:#fff;color:var(--color-text);width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--color-primary);outline-offset:-1px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.form-field{display:flex;flex-direction:column;gap:5px}.form-field label{font-size:13px;font-weight:600;color:var(--color-text-muted)}.form-error{color:var(--color-danger);font-size:13px;margin-top:6px}.empty-state,.loading-state{padding:40px 20px;text-align:center;color:var(--color-text-muted)}.banner{padding:10px 14px;border-radius:var(--radius);font-size:14px;margin-bottom:14px}.banner-error{background:var(--color-danger-bg);color:var(--color-danger)}.banner-success{background:var(--color-success-bg);color:var(--color-success)}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg)}.login-card{width:340px;padding:30px}.login-card h1{font-size:18px;margin:0 0 4px}.login-card .page-subtitle{margin-bottom:20px}.login-card form{display:flex;flex-direction:column;gap:14px}.demo-creds{margin-top:18px;font-size:12px;color:var(--color-text-muted);line-height:1.6}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f141e73;display:flex;align-items:center;justify-content:center;z-index:40;padding:20px}.modal-card{width:100%;max-width:640px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.pagination{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--color-text-muted)}.line-items-table input[type=number]{width:90px}.section-title{font-size:14px;font-weight:700;margin:22px 0 10px}.muted{color:var(--color-text-muted)}.text-right{text-align:right}