/*
 * Hyper Parameter Oasis - Form Styles
 * Inputs, buttons, selects, checkboxes, and form layout
 */

/* === Form Layout === */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

/* Small form label variant for compact layouts */
.form-label-sm {
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
}

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

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

/* === Text Inputs === */
.input {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.input:hover:not(:disabled) {
  border-color: var(--color-border-strong);
}

.input:focus {
  outline: none;
  border-color: var(--color-lagoon);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.input:disabled {
  background: var(--color-bg-hover);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

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

.input.input-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

/* Input sizes */
.input-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
}

.input-lg {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-lg);
}

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

/* === Select === */
.select {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  padding-right: var(--space-xl);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  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='%2364748b' 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-sm) center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.select:hover:not(:disabled) {
  border-color: var(--color-border-strong);
}

.select:focus {
  outline: none;
  border-color: var(--color-lagoon);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.select:disabled {
  background-color: var(--color-bg-hover);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

/* === Checkbox === */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.checkbox {
  width: 18px;
  height: 18px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-surface);
  cursor: pointer;
  appearance: none;
  position: relative;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.checkbox:hover:not(:disabled) {
  border-color: var(--color-lagoon);
}

.checkbox:checked {
  background: var(--color-lagoon);
  border-color: var(--color-lagoon);
}

.checkbox:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.checkbox:disabled {
  background: var(--color-bg-hover);
  cursor: not-allowed;
}

.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  cursor: pointer;
  user-select: none;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-normal);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

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

.btn svg {
  width: 18px;
  height: 18px;
}

/* Primary button - lagoon teal */
.btn-primary {
  background: var(--color-lagoon);
  color: white;
  border: 1px solid var(--color-lagoon);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-lagoon-light);
  border-color: var(--color-lagoon-light);
  color: white;
}

/* Secondary button - outlined */
.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text-primary);
}

/* Danger button - coral red */
.btn-danger {
  background: var(--color-error);
  color: white;
  border: 1px solid var(--color-error);
}

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

/* Ghost button - minimal */
.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid transparent;
}

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

/* Button sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-sm);
}

.btn-sm svg {
  width: 16px;
  height: 16px;
}

.btn-lg {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-lg);
}

/* Full width button */
.btn-block {
  display: flex;
  width: 100%;
}

/* Icon-only button */
.btn-icon {
  padding: var(--space-sm);
}

.btn-icon.btn-sm {
  padding: var(--space-xs);
}

/* === Form Actions === */
.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

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

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