/* ==========================================================================
   کاد — UI Components
   ========================================================================== */

/* ---------------------------------- Buttons ---------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: inherit;
  font-size: var(--text-body1-size);
  font-weight: var(--fw-medium);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition: background var(--transition-fast), border-color var(--transition-fast),
    color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

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

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-body2-size);
  border-radius: var(--radius-sm);
}

.btn-sm svg {
  width: 15px;
  height: 15px;
}

.btn-lg {
  padding: 1rem 1.75rem;
  font-size: 1.05rem;
  border-radius: 14px;
}

.btn-lg svg {
  width: 20px;
  height: 20px;
}

.btn-block {
  width: 100%;
}

/* Primary */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
  background: #9c7a24;
}

.btn-primary:disabled,
.btn-primary.is-disabled {
  background: var(--color-gray-200);
  color: var(--color-gray-400);
  box-shadow: none;
  cursor: not-allowed;
}

/* Secondary / outline */
.btn-secondary {
  background: var(--color-white);
  color: var(--color-gray-800);
  border-color: var(--color-gray-200);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-lighter);
}

.btn-secondary:active {
  background: #f0e0bb;
}

.btn-secondary:disabled,
.btn-secondary.is-disabled {
  color: var(--color-gray-300);
  border-color: var(--color-gray-100);
  cursor: not-allowed;
}

/* On dark / photo backgrounds */
.btn-ghost-light {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.24);
}

/* Text button */
.btn-text {
  background: transparent;
  color: var(--color-primary);
  padding: 0.5rem 0.25rem;
}

.btn-text:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Icon-only button (favorite, bookmark, share…) */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  color: var(--color-gray-600);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.btn-icon svg {
  width: 19px;
  height: 19px;
}

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

.btn-icon.is-active {
  background: var(--color-primary-lighter);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-icon.is-active svg {
  fill: currentColor;
}

/* ---------------------------------- Form fields ---------------------------------- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field label {
  font-size: var(--text-body2-size);
  font-weight: var(--fw-medium);
  color: var(--color-gray-700);
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.input,
.select {
  width: 100%;
  background: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: var(--text-body1-size);
  color: var(--color-gray-800);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input::placeholder {
  color: var(--color-gray-400);
}

.input:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.input-wrap .input {
  padding-left: 2.75rem;
}

.input-wrap .input-icon {
  position: absolute;
  left: 0.9rem;
  color: var(--color-gray-400);
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.input-wrap .input-icon-action {
  position: absolute;
  left: 0.9rem;
  color: var(--color-gray-400);
  background: none;
  border: none;
  display: flex;
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 0.9rem center;
  padding-left: 2.5rem;
  cursor: pointer;
}

.field-hint {
  font-size: var(--text-caption-size);
  color: var(--color-gray-500);
}

.field-error {
  font-size: var(--text-caption-size);
  color: var(--color-danger);
  display: none;
}

.field.has-error .input {
  border-color: var(--color-danger);
}

.field.has-error .field-error {
  display: block;
}

/* Checkbox */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-body2-size);
  color: var(--color-gray-700);
  user-select: none;
}

.checkbox input {
  position: absolute;
  opacity: 0;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.checkbox .box {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 1.5px solid var(--color-gray-300);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.checkbox .box svg {
  width: 13px;
  height: 13px;
  stroke: var(--color-white);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.checkbox input:checked ~ .box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox input:checked ~ .box svg {
  opacity: 1;
}

.checkbox input:focus-visible ~ .box {
  box-shadow: var(--shadow-focus);
}

/* Radio */
.radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-body2-size);
  color: var(--color-gray-700);
  user-select: none;
}

.radio input {
  position: absolute;
  opacity: 0;
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.radio .dot {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-gray-300);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.radio .dot::after {
  content: '';
  width: 9px;
  height: 9px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  transform: scale(0);
  transition: transform var(--transition-fast);
}

.radio input:checked ~ .dot {
  border-color: var(--color-primary);
}

.radio input:checked ~ .dot::after {
  transform: scale(1);
}

/* Password toggle input */
.input-password {
  padding-left: 2.75rem;
}

/* ---------------------------------- Badges / Tags ---------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-caption-size);
  font-weight: var(--fw-medium);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  line-height: 1.6;
  white-space: nowrap;
}

.badge-new {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-neutral {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

.badge-primary {
  background: var(--color-primary-lighter);
  color: var(--color-primary);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: #b45309;
}

.badge-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.badge-format {
  background: var(--color-secondary);
  color: var(--color-white);
  font-weight: var(--fw-semibold);
  border-radius: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
  font-size: var(--text-body2-size);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
}

.tag .count {
  color: var(--color-gray-400);
  font-size: var(--text-caption-size);
}

/* status pills for admin table */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-caption-size);
  font-weight: var(--fw-medium);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
}

.status-pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.status-pending {
  background: var(--color-warning-bg);
  color: #b45309;
}

.status-rejected {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

/* ---------------------------------- Cards ---------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ---------------------------------- Avatar ---------------------------------- */
.avatar {
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-gray-100);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------------------------------- Rating ---------------------------------- */
.rating {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-body2-size);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-800);
}

.rating svg {
  width: 15px;
  height: 15px;
  fill: var(--color-warning);
  stroke: var(--color-warning);
}

/* ---------------------------------- Stat pill (page count, format, size…) ---------------------------------- */
.stat-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.stat-chip svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.stat-chip .stat-label {
  font-size: var(--text-caption-size);
  color: var(--color-gray-500);
  display: block;
}

.stat-chip .stat-value {
  font-size: var(--text-body2-size);
  font-weight: var(--fw-semibold);
  color: var(--color-gray-800);
}

/* ---------------------------------- Skeleton (loading state) ---------------------------------- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

/* ---------------------------------- Empty state ---------------------------------- */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-gray-500);
}

.empty-state svg {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  color: var(--color-gray-300);
}

.empty-state h3 {
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

/* ---------------------------------- Toast ---------------------------------- */
.toast {
  position: fixed;
  bottom: var(--space-6);
  right: 50%;
  transform: translateX(50%) translateY(120%);
  background: var(--color-gray-900);
  color: var(--color-white);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-body2-size);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: transform var(--transition-base);
  white-space: nowrap;
}

.toast.is-visible {
  transform: translateX(50%) translateY(0);
}

.toast svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
}

/* ---------------------------------- Tabs (auth pages) ---------------------------------- */
.tabs {
  display: flex;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
}

.tabs button {
  flex: 1;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  font-weight: var(--fw-medium);
  color: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.tabs button.is-active {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}