*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-bg: #1e2a3a;
  --sidebar-hover: #2d3f56;
  --sidebar-active: #3b82f6;
  --sidebar-text: #94a3b8;
  --sidebar-text-active: #ffffff;
  --sidebar-width: 240px;
  --accent: #3b82f6;
  --accent-dark: #2563eb;
  --danger: #ef4444;
  --danger-dark: #dc2626;
  --success: #10b981;
  --warning: #f59e0b;
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --text: #1f2937;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

/* Login page */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--sidebar-bg); }
.login-card { background: var(--card-bg); border-radius: 12px; padding: 48px 40px; width: 380px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-card h1 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.login-card .subtitle { color: var(--text-muted); font-size: 14px; margin-bottom: 32px; }
.login-card .badge { display: inline-block; background: var(--accent); color: white; font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 20px; letter-spacing: .5px; text-transform: uppercase; margin-bottom: 12px; }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-logo .logo-text { color: white; font-size: 18px; font-weight: 700; }
.sidebar-logo .logo-sub { color: var(--sidebar-text); font-size: 12px; margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-section-label { color: var(--sidebar-text); font-size: 10px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; padding: 12px 8px 6px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 6px;
  color: var(--sidebar-text); text-decoration: none;
  font-size: 14px; font-weight: 500;
  transition: background .15s, color .15s;
  margin-bottom: 2px;
  cursor: pointer;
}
.nav-item:hover { background: var(--sidebar-hover); color: var(--sidebar-text-active); }
.nav-item.active { background: var(--accent); color: var(--sidebar-text-active); }
.nav-item svg { flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.sidebar-user { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.sidebar-user-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--accent); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.sidebar-user-info { min-width: 0; }
.sidebar-user-name { color: white; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role { color: var(--sidebar-text); font-size: 11px; }

.main-content { margin-left: var(--sidebar-width); flex: 1; min-height: 100vh; }

.page-header { background: var(--card-bg); border-bottom: 1px solid var(--border); padding: 20px 32px; display: flex; align-items: center; justify-content: space-between; }
.page-header h1 { font-size: 20px; font-weight: 700; }
.page-header .breadcrumb { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.page-body { padding: 32px; }

/* Cards */
.card { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-header h2 { font-size: 16px; font-weight: 600; }
.card-body { padding: 24px; }

/* Stats grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 20px; margin-bottom: 32px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.stat-card .stat-value { font-size: 36px; font-weight: 700; color: var(--accent); margin-top: 8px; }
.stat-card .stat-icon { font-size: 24px; float: right; }

/* Tables */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th { background: var(--bg); padding: 12px 16px; text-align: left; font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); border-bottom: 1px solid var(--border); white-space: nowrap; }
tbody td { padding: 14px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #f9fafb; }

/* Badges */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-admin { background: #fef3c7; color: #92400e; }
.badge-general { background: #d1fae5; color: #065f46; }
.badge-both { background: #ede9fe; color: #5b21b6; }
.badge-blue { background: #dbeafe; color: #1e40af; }
.badge-gray { background: #f3f4f6; color: #374151; }

/* Category tags */
.tag { display: inline-block; padding: 2px 8px; background: #eff6ff; color: #1d4ed8; border-radius: 4px; font-size: 11px; font-weight: 500; margin: 2px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 6px; font-size: 14px; font-weight: 500; cursor: pointer; border: none; transition: background .15s, opacity .15s; text-decoration: none; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--accent-dark); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover:not(:disabled) { background: var(--danger-dark); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { background: #e5e7eb; }
.btn-success { background: var(--success); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-label .required { color: var(--danger); margin-left: 2px; }
.form-control {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; color: var(--text);
  background: white; transition: border-color .15s, box-shadow .15s;
  font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.form-control.error { border-color: var(--danger); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-error { color: var(--danger); font-size: 12px; margin-top: 4px; }

/* Tag input */
.tag-input-wrapper { border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; display: flex; flex-wrap: wrap; gap: 4px; cursor: text; background: white; min-height: 42px; align-items: flex-start; }
.tag-input-wrapper:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,.15); }
.tag-item { background: #eff6ff; color: #1d4ed8; border-radius: 4px; padding: 2px 6px; font-size: 12px; display: flex; align-items: center; gap: 4px; }
.tag-item button { background: none; border: none; color: #1d4ed8; cursor: pointer; font-size: 14px; line-height: 1; padding: 0; }
.tag-input { border: none; outline: none; font-size: 13px; flex: 1; min-width: 100px; padding: 2px 4px; background: transparent; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px; opacity: 0; pointer-events: none; transition: opacity .2s; }
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal { background: var(--card-bg); border-radius: 12px; width: 100%; max-width: 580px; max-height: 90vh; display: flex; flex-direction: column; box-shadow: 0 20px 60px rgba(0,0,0,.3); transform: translateY(10px); transition: transform .2s; }
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 18px; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 20px; color: var(--text-muted); cursor: pointer; padding: 4px; border-radius: 4px; }
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-body { padding: 24px; overflow-y: auto; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 6px; font-size: 14px; margin-bottom: 16px; display: flex; align-items: flex-start; gap: 10px; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-info { background: #dbeafe; color: #1e3a5f; border: 1px solid #bfdbfe; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* Toolbar */
.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--card-bg); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; flex: 1; max-width: 360px; }
.search-box input { border: none; outline: none; font-size: 14px; flex: 1; background: transparent; }
.search-box svg { color: var(--text-muted); flex-shrink: 0; }

/* Spinner */
.spinner { width: 20px; height: 20px; border: 2px solid #e5e7eb; border-top-color: var(--accent); border-radius: 50%; animation: spin .6s linear infinite; }
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Empty state */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state svg { opacity: .3; margin-bottom: 12px; }
.empty-state p { font-size: 15px; }

/* Loading overlay */
.loading-bar { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 20px; }

/* Toast */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast { background: #1f2937; color: white; padding: 12px 20px; border-radius: 8px; font-size: 14px; box-shadow: 0 4px 12px rgba(0,0,0,.2); display: flex; align-items: center; gap: 10px; animation: slideIn .2s ease; max-width: 360px; }
.toast.success { background: #065f46; }
.toast.error { background: #991b1b; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Divider */
.divider { border: none; border-top: 1px solid var(--border); margin: 24px 0; }

/* Vendor detail card */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.detail-field label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; display: block; margin-bottom: 4px; }
.detail-field p { font-size: 14px; color: var(--text); }

/* Result highlight */
.result-box { background: #f0f9ff; border: 1px solid #bae6fd; border-radius: 8px; padding: 16px; margin-bottom: 12px; }
.result-box h4 { font-size: 15px; font-weight: 600; color: #0c4a6e; margin-bottom: 6px; }
.result-box p { font-size: 13px; color: #0369a1; }
.result-box .source { font-size: 12px; color: #64748b; margin-top: 6px; font-style: italic; }

/* Upload area */
.upload-area { border: 2px dashed var(--border); border-radius: 8px; padding: 32px; text-align: center; cursor: pointer; transition: border-color .15s; }
.upload-area:hover, .upload-area.drag { border-color: var(--accent); background: #eff6ff; }
.upload-area p { color: var(--text-muted); font-size: 14px; margin-top: 8px; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
}