/* Base reset & variables */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #25D366;
  --color-primary-dark: #128C7E;
  --color-bg: #f0f2f5;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #667781;
  --color-border: #e0e0e0;
  --color-danger: #dc3545;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

#app {
  min-height: 100vh;
}

/* Page layout */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Utility */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* Login page */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.login-title {
  font-size: 1.5rem;
  color: var(--color-primary-dark);
  text-align: center;
}

.login-subtitle {
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
  color: var(--color-text);
}

.form-group input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color 0.15s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(37, 211, 102, 0.2);
}

.login-error {
  background: #fef2f2;
  color: var(--color-danger);
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
}

.btn-block {
  width: 100%;
}

/* Master Admin page */
.master-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.master-title {
  font-size: 1.5rem;
  color: var(--color-primary-dark);
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--color-bg);
}

/* Add user section */
.add-user-section {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.add-user-section h2 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.form-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.form-row .form-group {
  flex: 1;
  min-width: 150px;
  margin-bottom: 0;
}

.form-error {
  background: #fef2f2;
  color: var(--color-danger);
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.form-success {
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Data table */
.users-table-section {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

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

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.625rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.data-table tbody tr:hover {
  background: var(--color-bg);
}

.actions-cell {
  white-space: nowrap;
}

.actions-cell .btn {
  margin-right: 0.25rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-active {
  background: #dcfce7;
  color: #166534;
}

.badge-blocked {
  background: #fef2f2;
  color: var(--color-danger);
}

/* Button variants */
.btn-sm {
  padding: 0.3rem 0.625rem;
  font-size: 0.8125rem;
}

.btn-warning {
  background: #f59e0b;
  color: #fff;
}

.btn-warning:hover:not(:disabled) {
  background: #d97706;
}

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

.btn-success:hover:not(:disabled) {
  background: var(--color-primary-dark);
}

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

.btn-danger:hover:not(:disabled) {
  background: #b91c1c;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.page-info {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
}

.modal h3 {
  margin-bottom: 0.5rem;
}

.modal p {
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
}

.modal-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* Helpers */
.loading-text,
.empty-text {
  text-align: center;
  color: var(--color-text-secondary);
  padding: 2rem 0;
}

.error-text {
  text-align: center;
  color: var(--color-danger);
  padding: 2rem 0;
}

.text-muted {
  color: var(--color-text-secondary);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}


/* User panel */
.user-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.user-title {
  font-size: 1.5rem;
  color: var(--color-primary-dark);
}

.user-header-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Account card grid (Pancake-style) */
.accounts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.account-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  transition: box-shadow 0.15s;
}

.account-card:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}

.account-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.account-business-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.account-phone {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-primary-dark);
}

.account-cs-link {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  word-break: break-all;
}

.account-cs-label {
  font-weight: 500;
}

.account-card-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.25rem;
}