/* ==========================================================================
   Tools Hub - Components (Buttons, Forms, Cards, Badges, Toasts, Accordions)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

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

.btn-primary {
  background: var(--primary);
  color: var(--primary-contrast);
  box-shadow: 0 2px 4px var(--primary-glow);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 8px var(--primary-glow);
}

.btn-secondary {
  background: var(--secondary);
  color: #FFFFFF;
  box-shadow: 0 2px 4px var(--secondary-glow);
}

.btn-secondary:hover {
  background: var(--secondary-hover);
  box-shadow: 0 4px 8px var(--secondary-glow);
}

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

.btn-outline:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--text-muted);
}

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

.btn-danger:hover {
  background: #DC2626;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.825rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  padding: 0.65rem;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
}

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

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.card-interactive:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.card-header {
  margin-bottom: 1.25rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.card-description {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* --------------------------------------------------------------------------
   Form Fields & Controls
   -------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.form-label-hint {
  font-size: 0.775rem;
  font-weight: 400;
  color: var(--text-muted);
}

.form-control,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.7rem 0.95rem;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-input);
  color: var(--text-main);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: none;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-sans);
}

.form-textarea.code-font {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  tab-size: 2;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

/* Checkbox & Radio */
.checkbox-label,
.radio-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.925rem;
  user-select: none;
}

.checkbox-input,
.radio-input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Slider / Range */
.form-range-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.form-range {
  flex: 1;
  accent-color: var(--primary);
  cursor: pointer;
  height: 6px;
  border-radius: var(--radius-full);
}

.range-val-badge {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
  min-width: 45px;
  text-align: right;
  font-family: var(--font-mono);
}

/* --------------------------------------------------------------------------
   Drag & Drop File Upload Area
   -------------------------------------------------------------------------- */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  background-color: var(--bg-surface-elevated);
  transition: all var(--transition-fast);
  position: relative;
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem auto;
  color: var(--primary);
}

.dropzone-text {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-main);
}

.dropzone-hint {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.dropzone input[type="file"] {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* --------------------------------------------------------------------------
   Badges & Tags
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
  border-color: transparent;
}

.badge-secondary {
  background: var(--secondary-light);
  color: var(--secondary);
  border-color: transparent;
}

.badge-success {
  background: var(--success-light);
  color: var(--success);
  border-color: transparent;
}

.badge-warning {
  background: var(--warning-light);
  color: var(--warning);
  border-color: transparent;
}

.badge-danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: transparent;
}

/* --------------------------------------------------------------------------
   Alerts & Notifications
   -------------------------------------------------------------------------- */
.alert {
  padding: 0.9rem 1.15rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.alert svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-info {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-glow);
}

.alert-success {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.alert-warning {
  background: var(--warning-light);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.alert-danger {
  background: var(--danger-light);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

/* --------------------------------------------------------------------------
   Toast Notifications
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-surface);
  color: var(--text-main);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideInToast 0.25s ease forwards;
}

.toast.toast-success svg {
  color: var(--success);
}

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

@keyframes slideInToast {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Accordions (FAQ)
   -------------------------------------------------------------------------- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.accordion-item.open {
  border-color: var(--primary);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.accordion-trigger:hover {
  background-color: var(--bg-surface-elevated);
}

.accordion-trigger svg {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.accordion-item.open .accordion-trigger svg {
  transform: rotate(180deg);
  color: var(--primary);
}

.accordion-content {
  display: none;
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.accordion-item.open .accordion-content {
  display: block;
}

/* --------------------------------------------------------------------------
   Copyable Box / Output Container
   -------------------------------------------------------------------------- */
.output-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  position: relative;
}

.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.output-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}