/**
 * Forms Component Styles
 * Input fields, selects, textareas, form layouts
 */

/* Form Container */
.form-container {
  max-width: 600px;
}

/* Form Groups */
.form-group {
  margin-bottom: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* Labels */
.form-label,
.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-label-required::after {
  content: ' *';
  color: var(--color-danger);
}

/* Input Base */
.form-control,
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="url"],
.form-group select,
.form-group textarea {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: inherit;
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-control:hover,
.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--color-border-hover);
}

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

/* Placeholder */
.form-control::placeholder,
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* Disabled State */
.form-control:disabled,
.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
  background-color: var(--color-background);
  color: var(--color-text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}

/* Error State */
.form-control.is-invalid,
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--color-danger);
}

.form-control.is-invalid:focus,
.form-group.has-error input:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

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

/* Success State */
.form-control.is-valid,
.form-group.has-success input {
  border-color: var(--color-success);
}

/* Select Dropdown */
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' 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: right var(--space-3) center;
  background-size: 18px;
  padding-right: calc(var(--space-4) + 24px);
  cursor: pointer;
}

/* Textarea */
.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-group textarea.no-resize {
  resize: none;
}

/* Form Hint */
.form-hint {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* Input with Icon */
.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .form-control {
  padding-left: calc(var(--space-4) + 24px);
}

.input-icon-wrapper .input-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  pointer-events: none;
}

/* Input with Right Icon/Button */
.input-icon-wrapper.icon-right .form-control {
  padding-left: var(--space-4);
  padding-right: calc(var(--space-4) + 24px);
}

.input-icon-wrapper.icon-right .input-icon {
  left: auto;
  right: var(--space-3);
}

/* Password Toggle */
.input-password {
  position: relative;
}

.input-password input {
  padding-right: calc(var(--space-4) + 32px);
}

.btn-toggle-password {
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-2);
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}

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

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-check label {
  margin: 0;
  font-size: var(--text-sm);
  cursor: pointer;
}

/* Toggle Switch */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background-color: var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
  flex-shrink: 0;
}

.toggle::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.toggle:checked {
  background-color: var(--color-primary);
}

.toggle:checked::before {
  transform: translateX(20px);
}

.toggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

/* File Input */
.form-file {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-file input[type="file"] {
  padding: var(--space-3);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-background);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.form-file input[type="file"]:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.form-file input[type="file"]::file-selector-button {
  padding: var(--space-2) var(--space-4);
  margin-right: var(--space-3);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Form Actions */
.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.form-actions-right {
  justify-content: flex-end;
}

.form-actions-between {
  justify-content: space-between;
}

/* Input Sizes */
.form-control-sm {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.form-control-lg {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-lg);
}

/* Inline Form */
.form-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-3);
}

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

/* Character Counter */
.char-counter {
  display: block;
  text-align: right;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.char-counter.warning {
  color: var(--color-warning);
}

.char-counter.error {
  color: var(--color-danger);
}

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

  .form-actions {
    flex-direction: column;
  }

  .form-actions .btn {
    width: 100%;
    justify-content: center;
  }
}