/* ==============================================================================
   PAYFLOW ENTERPRISE - BASE RESET & CORE COMPONENT STYLES
   Strict separation: Pure vanilla CSS using variables.css tokens.
   ============================================================================== */

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

html {
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-4xl); margin-bottom: var(--space-4); }
h2 { font-size: var(--text-3xl); margin-bottom: var(--space-3); }
h3 { font-size: var(--text-2xl); margin-bottom: var(--space-3); }
h4 { font-size: var(--text-xl); margin-bottom: var(--space-2); }
h5 { font-size: var(--text-lg); margin-bottom: var(--space-2); }
h6 { font-size: var(--text-base); margin-bottom: var(--space-1); }

p {
  color: var(--text-secondary);
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

a {
  color: var(--color-brand-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brand-secondary-hover);
}

img, svg {
  display: block;
  max-width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.625rem 1.25rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  box-shadow: 0 2px 6px var(--color-accent-ring, rgba(232, 101, 10, 0.25));
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px rgba(232, 101, 10, 0.35);
  transform: translateY(-1px);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #ffffff;
  box-shadow: 0 2px 6px var(--color-accent-ring, rgba(232, 101, 10, 0.25));
}
.btn-accent:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(232, 101, 10, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-surface);
  color: var(--text-primary);
  border-color: var(--border-default);
}
.btn-secondary:hover {
  background-color: var(--bg-surface-sunken);
  border-color: var(--border-interactive);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #dc2626;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: var(--text-base);
}

.btn-block {
  width: 100%;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--text-primary);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-ring);
}

.form-input[disabled], .form-select[disabled], .form-textarea[disabled] {
  background-color: var(--bg-surface-sunken);
  cursor: not-allowed;
  opacity: 0.7;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--text-danger);
  margin-top: var(--space-1);
}

/* Card Container */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 0;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  line-height: 1;
}

.badge-success { background-color: var(--color-success-bg); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge-warning { background-color: var(--color-warning-bg); color: var(--color-warning); border: 1px solid rgba(245, 158, 11, 0.2); }
.badge-danger { background-color: var(--color-danger-bg); color: var(--color-danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.badge-info { background-color: var(--color-info-bg); color: var(--color-info); border: 1px solid rgba(2, 132, 199, 0.2); }
.badge-neutral { background-color: var(--bg-surface-sunken); color: var(--text-secondary); border: 1px solid var(--border-default); }

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: var(--text-sm);
}

.table th {
  background-color: var(--bg-surface-sunken);
  color: var(--text-secondary);
  font-weight: 600;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
  vertical-align: top;
  overflow-wrap: anywhere;
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: top;
  overflow-wrap: anywhere;
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background-color: var(--bg-surface-hover);
}

/* Admin data tables that don't use the .table-responsive wrapper */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
  font-size: var(--text-sm);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-surface);
  margin: var(--space-3) 0;
}
.data-table th {
  background-color: var(--bg-surface-sunken);
  color: var(--text-secondary);
  font-weight: 600;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-default);
  white-space: nowrap;
}
.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
  overflow-wrap: anywhere;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background-color: var(--bg-surface-hover); }
@media (max-width: 720px) {
  .data-table { display: block; overflow-x: auto; }
}

/* Slide image uploader (admin) */
.slide-uploader { border: 1px dashed var(--border-default); border-radius: var(--radius-md); padding: var(--space-3); background: var(--bg-surface-sunken); max-width: 640px; }
.su-preview { position: relative; width: 100%; border-radius: var(--radius-sm); overflow: hidden; background: var(--bg-surface); border: 1px solid var(--border-subtle); }
.su-preview img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.su-empty { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: var(--text-secondary); font-size: var(--text-sm); }
.su-empty i { font-size: 32px; }
.su-progress { margin-top: var(--space-2); }
.su-bar { height: 8px; border-radius: 999px; background: var(--border-subtle); overflow: hidden; }
.su-bar i { display: block; height: 100%; width: 0; background: var(--color-accent, #2563eb); transition: width .15s linear; }
.su-status { font-size: var(--text-xs); color: var(--text-secondary); }
.su-message { font-size: var(--text-xs); margin-top: var(--space-2); min-height: 1em; }
.su-message.is-error { color: #dc2626; font-weight: 600; }
.su-message.is-success { color: #16a34a; }
.su-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: var(--space-2); }
.su-hint { font-size: var(--text-xs); color: var(--text-secondary); margin: var(--space-2) 0 0; }
.slide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-3); margin-bottom: var(--space-3); }

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--border-interactive);
  transition: var(--transition-fast);
  border-radius: var(--radius-full);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-fast);
  border-radius: 50%;
  box-shadow: var(--shadow-xs);
}

input:checked + .toggle-slider {
  background-color: var(--color-accent);
}

input:checked + .toggle-slider:before {
  transform: translateX(22px);
}

/* Alerts */
.alert {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.alert-success { background-color: var(--color-success-bg); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.alert-warning { background-color: var(--color-warning-bg); color: #b45309; border: 1px solid rgba(245, 158, 11, 0.2); }
.alert-danger { background-color: var(--color-danger-bg); color: var(--color-danger); border: 1px solid rgba(239, 68, 68, 0.2); }
.alert-info { background-color: var(--color-info-bg); color: var(--color-info); border: 1px solid rgba(2, 132, 199, 0.2); }

/* Grid Utilities */
.grid { display: grid; gap: var(--space-4); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Helper Utilities */
.d-none { display: none !important; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.text-left { text-align: left !important; }

/* Modal Dialogs */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--bg-backdrop, rgba(15, 23, 42, 0.7));
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal, 1000);
  padding: var(--space-4);
}

.modal-overlay.open {
  display: flex;
}

.modal-container {
  background-color: var(--bg-surface, #ffffff);
  border-radius: var(--radius-lg, 12px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  max-width: 580px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-6, 24px);
  animation: modalScaleIn 180ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalScaleIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Accessible, non-blocking notification cards */
.pf-notification-stack {
  position: fixed;
  z-index: calc(var(--z-toast, 1100) + 10);
  top: max(16px, env(safe-area-inset-top));
  right: max(16px, env(safe-area-inset-right));
  display: grid;
  width: min(400px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  gap: 10px;
  overflow-y: auto;
  pointer-events: none;
}

.pf-notification-card {
  --notification-color: #2563eb;
  --notification-bg: #eff6ff;
  position: relative;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 30px;
  align-items: start;
  gap: 11px;
  overflow: hidden;
  padding: 15px 13px 17px;
  border: 1px solid color-mix(in srgb, var(--notification-color) 24%, white);
  border-left: 4px solid var(--notification-color);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.17);
  color: var(--text-primary);
  pointer-events: auto;
  animation: notificationEnter 180ms ease-out both;
  transition: opacity 180ms ease, transform 180ms ease;
}

.pf-notification-success {
  --notification-color: #047857;
  --notification-bg: #ecfdf5;
}

.pf-notification-error {
  --notification-color: #b91c1c;
  --notification-bg: #fef2f2;
}

.pf-notification-warning {
  --notification-color: #b45309;
  --notification-bg: #fffbeb;
}

.pf-notification-info {
  --notification-color: #1d4ed8;
  --notification-bg: #eff6ff;
}

.pf-notification-icon {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 50%;
  background: var(--notification-bg);
  color: var(--notification-color);
  font-size: 17px;
}

.pf-notification-content {
  min-width: 0;
}

.pf-notification-title {
  display: block;
  margin: 1px 0 3px;
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.35;
}

.pf-notification-message {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.pf-notification-close {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #64748b;
  cursor: pointer;
  font-size: 17px;
}

.pf-notification-close:hover {
  background: #f1f5f9;
  color: #0f172a;
}

.pf-notification-close:focus-visible,
.pf-confirm-card .btn:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.3);
  outline-offset: 2px;
}

.pf-notification-progress {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--notification-color);
  transform-origin: left center;
  animation: notificationProgress var(--notification-duration) linear forwards;
}

.pf-notification-leaving {
  opacity: 0;
  transform: translateX(12px);
}

.pf-confirm-backdrop {
  position: fixed;
  z-index: calc(var(--z-toast, 1100) + 20);
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(15, 23, 42, 0.56);
  backdrop-filter: blur(3px);
}

.pf-confirm-card {
  width: min(100%, 420px);
  padding: 22px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.24);
  animation: modalScaleIn 160ms ease-out both;
}

.pf-confirm-card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.pf-confirm-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.pf-confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}

@keyframes notificationEnter {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes notificationProgress {
  to { transform: scaleX(0); }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .pf-notification-stack {
    top: max(10px, env(safe-area-inset-top));
    right: max(10px, env(safe-area-inset-right));
    width: min(420px, calc(100vw - 40px));
    max-height: 45vh;
  }

  .pf-notification-card {
    grid-template-columns: 22px minmax(0, 1fr) 28px;
    gap: 9px;
    padding: 12px 10px 14px;
    border-radius: 10px;
  }

  .pf-notification-title { font-size: 13px; }
  .pf-notification-message { font-size: 12px; }

  .pf-confirm-backdrop {
    align-items: end;
    padding: 10px 10px max(10px, env(safe-area-inset-bottom));
  }

  .pf-confirm-card {
    padding: 18px;
    border-radius: 16px 16px 12px 12px;
  }

  .pf-confirm-actions .btn {
    flex: 1;
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pf-notification-card,
  .pf-confirm-card {
    animation: none;
    transition: none;
  }

  .pf-notification-progress {
    animation-duration: 1ms;
  }
}