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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f1f5f9;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --danger: #dc2626;
  --success: #16a34a;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --radius: 12px;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* Login */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 40px 32px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--primary);
  color: #fff;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
}

.login-header h1 {
  font-size: 1.75rem;
  margin-bottom: 6px;
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.login-form .form-group {
  margin-bottom: 18px;
}

/* Dashboard */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 1.75rem;
  margin-bottom: 4px;
}

.page-header p {
  color: var(--text-muted);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  overflow: hidden;
}

.form-panel {
  border-color: #bfdbfe;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}

.panel-header h2 {
  font-size: 1.1rem;
}

.badge {
  background: #eff6ff;
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.field-hint {
  display: block;
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.company-form {
  padding: 24px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
}

.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-bottom: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: var(--bg);
}

.btn-edit {
  background: #eff6ff;
  color: var(--primary);
  border: 1px solid #bfdbfe;
}

.btn-edit:hover {
  background: #dbeafe;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 8px;
}

.btn-icon:hover {
  color: var(--text);
}

/* Table */
.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 14px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.data-table th {
  background: #f8fafc;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  font-weight: 600;
}

.data-table tbody tr:hover {
  background: #f8fafc;
}

.data-table td:last-child {
  width: 100px;
}

.loading-state,
.empty-state {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state p {
  margin-bottom: 16px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 14px 20px;
  border-radius: 8px;
  color: #fff;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  z-index: 100;
  transform: translateY(20px);
  opacity: 0;
  transition: transform 0.3s, opacity 0.3s;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--danger);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .page-header {
    flex-direction: column;
  }

  .data-table th,
  .data-table td {
    padding: 12px 16px;
  }
}