/**
 * MSM-Group Floating Label Form Inputs
 *
 * Material Design inspired form inputs with:
 * - Floating label animations
 * - Multiple input types (text, email, tel, textarea, select)
 * - Validation states (error, success, warning)
 * - Icon support (left/right)
 * - Character counter
 * - Help text
 * - Accessibility compliant
 * - Smooth animations
 *
 * Usage: Wrap input with .msm-form-field container
 */

/* ========================================
   BASE FORM FIELD CONTAINER
   ======================================== */

.msm-form-field {
  position: relative;
  margin-bottom: var(--msm-space-6);
  width: 100%;
}

/* ========================================
   INPUT STYLES
   ======================================== */

.msm-form-field input,
.msm-form-field textarea,
.msm-form-field select {
  width: 100%;
  padding: var(--msm-space-4);
  padding-top: calc(var(--msm-space-4) + 12px);
  padding-bottom: calc(var(--msm-space-2));

  font-family: var(--msm-font-primary);
  font-size: var(--msm-font-size-base);
  font-weight: var(--msm-font-weight-regular);
  line-height: var(--msm-line-height-normal);
  color: var(--msm-color-text-primary);

  background-color: var(--msm-input-bg-default);
  border: 2px solid var(--msm-input-border-default);
  border-radius: var(--msm-radius-input);

  outline: none;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;

  transition:
    border-color var(--msm-duration-fast) var(--msm-ease-out),
    background-color var(--msm-duration-fast) var(--msm-ease-out),
    box-shadow var(--msm-duration-fast) var(--msm-ease-out);
}

/* Textarea specific */
.msm-form-field textarea {
  min-height: 120px;
  resize: vertical;
}

/* Select specific */
.msm-form-field select {
  cursor: pointer;
  padding-right: calc(var(--msm-space-4) + 20px);
  background-image: url('data:image/svg+xml;charset=UTF-8,%3csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="currentColor" 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(--msm-space-4) center;
  background-size: 16px;
}

/* Placeholder - Hidden until needed */
.msm-form-field input::placeholder,
.msm-form-field textarea::placeholder {
  opacity: 0;
  transition: opacity var(--msm-duration-fast) var(--msm-ease-out);
}

/* Show placeholder when focused */
.msm-form-field input:focus::placeholder,
.msm-form-field textarea:focus::placeholder {
  opacity: 0.5;
}

/* ========================================
   FLOATING LABEL
   ======================================== */

.msm-form-field label {
  position: absolute;
  top: 50%;
  left: var(--msm-space-4);
  transform: translateY(-50%);

  font-size: var(--msm-font-size-base);
  font-weight: var(--msm-font-weight-regular);
  color: var(--msm-color-text-secondary);
  background-color: transparent;

  pointer-events: none;
  user-select: none;

  transition:
    top var(--msm-duration-fast) var(--msm-ease-out),
    transform var(--msm-duration-fast) var(--msm-ease-out),
    font-size var(--msm-duration-fast) var(--msm-ease-out),
    color var(--msm-duration-fast) var(--msm-ease-out),
    background-color var(--msm-duration-fast) var(--msm-ease-out),
    padding var(--msm-duration-fast) var(--msm-ease-out);
}

/* Textarea label positioning */
.msm-form-field textarea + label {
  top: calc(var(--msm-space-4) + 12px);
  transform: translateY(0);
}

/* Select label - always floated */
.msm-form-field select + label {
  top: 0;
  transform: translateY(-50%);
  font-size: var(--msm-font-size-sm);
  color: var(--msm-color-text-secondary);
  background-color: var(--msm-color-bg-primary);
  padding: 0 var(--msm-space-1);
}

/* Floated State - When input has focus or value */
.msm-form-field input:focus + label,
.msm-form-field input:not(:placeholder-shown) + label,
.msm-form-field textarea:focus + label,
.msm-form-field textarea:not(:placeholder-shown) + label,
.msm-form-field.has-value label {
  top: 0;
  transform: translateY(-50%);
  font-size: var(--msm-font-size-sm);
  color: var(--msm-color-primary-500);
  background-color: var(--msm-color-bg-primary);
  padding: 0 var(--msm-space-1);
}

/* Keep label color secondary when not focused but has value */
.msm-form-field input:not(:focus):not(:placeholder-shown) + label,
.msm-form-field textarea:not(:focus):not(:placeholder-shown) + label {
  color: var(--msm-color-text-secondary);
}

/* ========================================
   INPUT STATES
   ======================================== */

/* Hover State */
.msm-form-field input:hover:not(:disabled):not(:focus),
.msm-form-field textarea:hover:not(:disabled):not(:focus),
.msm-form-field select:hover:not(:disabled):not(:focus) {
  background-color: var(--msm-input-bg-hover);
  border-color: var(--msm-input-border-hover);
}

/* Focus State */
.msm-form-field input:focus,
.msm-form-field textarea:focus,
.msm-form-field select:focus {
  border-color: var(--msm-input-border-focus);
  background-color: var(--msm-input-bg-focus);
  box-shadow: 0 0 0 3px rgba(0, 180, 217, 0.1);
}

/* Disabled State */
.msm-form-field input:disabled,
.msm-form-field textarea:disabled,
.msm-form-field select:disabled {
  background-color: var(--msm-input-bg-disabled);
  border-color: var(--msm-input-border-disabled);
  color: var(--msm-color-text-disabled);
  cursor: not-allowed;
  opacity: 0.6;
}

.msm-form-field input:disabled + label,
.msm-form-field textarea:disabled + label,
.msm-form-field select:disabled + label {
  color: var(--msm-color-text-disabled);
  cursor: not-allowed;
}

/* Error State */
.msm-form-field.has-error input,
.msm-form-field.has-error textarea,
.msm-form-field.has-error select,
.msm-form-field input:invalid:not(:placeholder-shown),
.msm-form-field textarea:invalid:not(:placeholder-shown) {
  border-color: var(--msm-input-border-error);
  background-color: rgba(244, 67, 54, 0.05);
}

.msm-form-field.has-error input:focus,
.msm-form-field.has-error textarea:focus,
.msm-form-field.has-error select:focus {
  box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.1);
}

.msm-form-field.has-error label,
.msm-form-field input:invalid:not(:placeholder-shown) + label,
.msm-form-field textarea:invalid:not(:placeholder-shown) + label {
  color: var(--msm-color-error-500) !important;
}

/* Success State */
.msm-form-field.has-success input,
.msm-form-field.has-success textarea,
.msm-form-field.has-success select {
  border-color: var(--msm-input-border-success);
  background-color: rgba(76, 175, 80, 0.05);
}

.msm-form-field.has-success input:focus,
.msm-form-field.has-success textarea:focus,
.msm-form-field.has-success select:focus {
  box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

.msm-form-field.has-success label {
  color: var(--msm-color-success-500) !important;
}

/* Warning State */
.msm-form-field.has-warning input,
.msm-form-field.has-warning textarea,
.msm-form-field.has-warning select {
  border-color: var(--msm-color-warning-500);
  background-color: rgba(255, 193, 7, 0.05);
}

.msm-form-field.has-warning input:focus,
.msm-form-field.has-warning textarea:focus,
.msm-form-field.has-warning select:focus {
  box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.1);
}

.msm-form-field.has-warning label {
  color: var(--msm-color-warning-700) !important;
}

/* ========================================
   ICONS (Left/Right)
   ======================================== */

/* Icon Container */
.msm-form-field-icon-left,
.msm-form-field-icon-right {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--msm-color-text-secondary);
  pointer-events: none;
  font-size: var(--msm-icon-size-sm);
  transition: color var(--msm-duration-fast) var(--msm-ease-out);
}

.msm-form-field-icon-left {
  left: var(--msm-space-4);
}

.msm-form-field-icon-right {
  right: var(--msm-space-4);
}

/* Input padding adjustments for icons */
.msm-form-field.has-icon-left input,
.msm-form-field.has-icon-left textarea {
  padding-left: calc(var(--msm-space-4) + var(--msm-icon-size-sm) + var(--msm-space-2));
}

.msm-form-field.has-icon-left label {
  left: calc(var(--msm-space-4) + var(--msm-icon-size-sm) + var(--msm-space-2));
}

.msm-form-field.has-icon-right input,
.msm-form-field.has-icon-right textarea {
  padding-right: calc(var(--msm-space-4) + var(--msm-icon-size-sm) + var(--msm-space-2));
}

/* Icon color on focus */
.msm-form-field input:focus ~ .msm-form-field-icon-left,
.msm-form-field input:focus ~ .msm-form-field-icon-right,
.msm-form-field textarea:focus ~ .msm-form-field-icon-left,
.msm-form-field textarea:focus ~ .msm-form-field-icon-right {
  color: var(--msm-color-primary-500);
}

/* Icon color states */
.msm-form-field.has-error .msm-form-field-icon-left,
.msm-form-field.has-error .msm-form-field-icon-right {
  color: var(--msm-color-error-500);
}

.msm-form-field.has-success .msm-form-field-icon-left,
.msm-form-field.has-success .msm-form-field-icon-right {
  color: var(--msm-color-success-500);
}

/* ========================================
   HELP TEXT & ERROR MESSAGES
   ======================================== */

.msm-form-field-help,
.msm-form-field-error,
.msm-form-field-success {
  display: block;
  margin-top: var(--msm-space-2);
  font-size: var(--msm-font-size-sm);
  line-height: var(--msm-line-height-snug);
}

.msm-form-field-help {
  color: var(--msm-color-text-secondary);
}

.msm-form-field-error {
  color: var(--msm-color-error-500);
  display: none;
}

.msm-form-field.has-error .msm-form-field-error {
  display: block;
  animation: msm-fade-in-up var(--msm-duration-fast) var(--msm-ease-out);
}

.msm-form-field.has-error .msm-form-field-help {
  display: none;
}

.msm-form-field-success {
  color: var(--msm-color-success-500);
  display: none;
}

.msm-form-field.has-success .msm-form-field-success {
  display: block;
  animation: msm-fade-in-up var(--msm-duration-fast) var(--msm-ease-out);
}

/* ========================================
   CHARACTER COUNTER
   ======================================== */

.msm-form-field-counter {
  position: absolute;
  bottom: calc(var(--msm-space-2) * -1 - 20px);
  right: 0;
  font-size: var(--msm-font-size-xs);
  color: var(--msm-color-text-secondary);
  pointer-events: none;
}

.msm-form-field-counter.is-over-limit {
  color: var(--msm-color-error-500);
  font-weight: var(--msm-font-weight-semibold);
}

/* ========================================
   REQUIRED INDICATOR
   ======================================== */

.msm-form-field label .required {
  color: var(--msm-color-error-500);
  margin-left: 2px;
}

/* ========================================
   CHECKBOX & RADIO INPUTS
   ======================================== */

.msm-form-field.msm-checkbox,
.msm-form-field.msm-radio {
  display: flex;
  align-items: flex-start;
  gap: var(--msm-space-3);
  margin-bottom: var(--msm-space-4);
}

.msm-form-field.msm-checkbox input[type="checkbox"],
.msm-form-field.msm-radio input[type="radio"] {
  width: auto;
  min-width: 20px;
  height: 20px;
  margin: 0;
  padding: 0;
  cursor: pointer;
  accent-color: var(--msm-color-primary-500);
}

.msm-form-field.msm-checkbox label,
.msm-form-field.msm-radio label {
  position: static;
  transform: none;
  font-size: var(--msm-font-size-base);
  color: var(--msm-color-text-primary);
  pointer-events: all;
  cursor: pointer;
  padding: 0;
  background: transparent;
  margin-top: -2px;
}

/* ========================================
   INPUT GROUPS
   Multiple inputs side by side
   ======================================== */

.msm-form-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--msm-space-4);
  margin-bottom: var(--msm-space-6);
}

/* Force 2 columns */
.msm-form-group-2col {
  grid-template-columns: repeat(2, 1fr);
}

/* Force 3 columns */
.msm-form-group-3col {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
  .msm-form-group,
  .msm-form-group-2col,
  .msm-form-group-3col {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   FILE INPUT
   ======================================== */

.msm-form-field input[type="file"] {
  padding: var(--msm-space-3);
  cursor: pointer;
}

.msm-form-field input[type="file"]::file-selector-button {
  padding: var(--msm-space-2) var(--msm-space-4);
  margin-right: var(--msm-space-3);
  border: 2px solid var(--msm-color-primary-500);
  border-radius: var(--msm-radius-md);
  background-color: transparent;
  color: var(--msm-color-primary-500);
  font-family: var(--msm-font-primary);
  font-weight: var(--msm-font-weight-semibold);
  cursor: pointer;
  transition: var(--msm-transition-colors);
}

.msm-form-field input[type="file"]::file-selector-button:hover {
  background-color: var(--msm-color-primary-50);
  border-color: var(--msm-color-primary-600);
  color: var(--msm-color-primary-600);
}

/* ========================================
   CONTACT FORM 7 INTEGRATION
   ======================================== */

/* Contact Form 7 specific classes */
.wpcf7-form .msm-form-field {
  margin-bottom: var(--msm-space-6);
}

/* CF7 validation error */
.wpcf7-form .msm-form-field.wpcf7-not-valid {
  border-color: var(--msm-input-border-error);
}

.wpcf7-form .msm-form-field .wpcf7-not-valid-tip {
  display: block;
  margin-top: var(--msm-space-2);
  font-size: var(--msm-font-size-sm);
  color: var(--msm-color-error-500);
}

/* CF7 form control wrapper */
.wpcf7-form-control-wrap {
  position: relative;
  display: block;
  width: 100%;
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Focus visible for keyboard navigation */
.msm-form-field input:focus-visible,
.msm-form-field textarea:focus-visible,
.msm-form-field select:focus-visible {
  outline: 2px solid var(--msm-color-primary-500);
  outline-offset: 2px;
}

/* Screen reader only text */
.msm-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .msm-form-field input,
  .msm-form-field textarea,
  .msm-form-field select,
  .msm-form-field label {
    transition: none;
  }
}

/* ========================================
   DARK MODE (Optional)
   ======================================== */

/*
@media (prefers-color-scheme: dark) {
  .msm-form-field input,
  .msm-form-field textarea,
  .msm-form-field select {
    background-color: var(--msm-color-neutral-800);
    border-color: var(--msm-color-neutral-600);
    color: var(--msm-color-neutral-100);
  }

  .msm-form-field label {
    color: var(--msm-color-neutral-300);
  }

  .msm-form-field input:focus + label,
  .msm-form-field textarea:focus + label,
  .msm-form-field select:focus + label {
    background-color: var(--msm-color-neutral-900);
  }
}
*/