/**
 * Salt Design System - Forms & Inputs Component
 *
 * Custom form styles that override Bootstrap's default form controls
 * Based on Figma Design System specifications
 * https://www.figma.com/design/CqdoCVx42XayJMKQ1mMGgr/Salt-Design-System?node-id=660-2663
 */

/* ============================================
   Base Form Control Styles (Text Inputs)
   ============================================ */

.form-control {
  /* Size and Shape */
  height: 44px;
  padding: 0.625rem 0.875rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  border-radius: 4px;

  /* Colors */
  color: var(--color-text-base);
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-border-base);

  /* Transitions */
  transition: border-color 0.15s ease-in-out,
              box-shadow 0.15s ease-in-out,
              background-color 0.15s ease-in-out;

  /* Typography */
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.form-control::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

/* ============================================
   Hover State
   ============================================ */

.form-control:hover:not(:disabled):not(:focus) {
  border-color: var(--color-border-strong);
}

/* ============================================
   Focus State
   ============================================ */

.form-control:focus {
  color: var(--color-text-base);
  background-color: var(--color-bg-surface);
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 3px var(--color-purple-signal-4);
}

/* ============================================
   Disabled State
   ============================================ */

.form-control:disabled {
  background-color: var(--color-bg-surface-muted);
  border-color: var(--color-border-subtle);
  color: var(--color-text-disabled);
  opacity: 0.6;
  cursor: not-allowed;
}

/* ============================================
   Error/Invalid State
   ============================================ */

.form-control.is-invalid,
.was-validated .form-control:invalid {
  border-color: var(--color-error);
  padding-right: calc(1.5em + 0.75rem);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23e5484d'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23e5484d' stroke='none'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid:focus,
.was-validated .form-control:invalid:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-3);
}

/* ============================================
   Success/Valid State
   ============================================ */

.form-control.is-valid,
.was-validated .form-control:valid {
  border-color: var(--color-success);
  padding-right: calc(1.5em + 0.75rem);
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12'%3e%3cpath fill='%2329a383' d='M10.28 2.28L3.989 8.575 1.695 6.28A1 1 0 00.28 7.695l3 3a1 1 0 001.414 0l7-7A1 1 0 0010.28 2.28z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-valid:focus,
.was-validated .form-control:valid:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px var(--color-success-3);
}

/* ============================================
   Textarea
   ============================================ */

textarea.form-control {
  min-height: 100px;
  resize: vertical;
  line-height: 1.5;
}

/* Small textarea */
textarea.form-control-sm {
  min-height: 80px;
}

/* Large textarea */
textarea.form-control-lg {
  min-height: 120px;
}

/* ============================================
   Form Select (Dropdown)
   ============================================ */

.form-select {
  /* Size and Shape */
  height: 44px;
  padding: 0.625rem 2.5rem 0.625rem 0.875rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  border-radius: 4px;

  /* Colors */
  color: var(--color-text-base);
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-border-base);

  /* Custom dropdown arrow */
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23737380' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;

  /* Transitions */
  transition: border-color 0.15s ease-in-out,
              box-shadow 0.15s ease-in-out,
              background-color 0.15s ease-in-out;

  /* Typography */
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Remove default arrow in IE */
  appearance: none;
}

/* Hover State */
.form-select:hover:not(:disabled):not(:focus) {
  border-color: var(--color-border-strong);
}

/* Focus State */
.form-select:focus {
  border-color: var(--color-primary);
  outline: 0;
  box-shadow: 0 0 0 3px var(--color-purple-signal-4);
}

/* Disabled State */
.form-select:disabled {
  background-color: var(--color-bg-surface-muted);
  border-color: var(--color-border-subtle);
  color: var(--color-text-disabled);
  opacity: 0.6;
  cursor: not-allowed;
}

/* Error State */
.form-select.is-invalid,
.was-validated .form-select:invalid {
  border-color: var(--color-error);
  padding-right: 4.125rem;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23737380' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e"),
                    url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23e5484d'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23e5484d' stroke='none'/%3e%3c/svg%3e");
  background-position: right 0.75rem center, center right 2.25rem;
  background-size: 16px 12px, calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-select.is-invalid:focus,
.was-validated .form-select:invalid:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-3);
}

/* ============================================
   Form Labels
   ============================================ */

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text-base);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Required indicator */
.form-label.required::after,
.form-label[required]::after {
  content: " *";
  color: var(--color-error);
  font-weight: 500;
}

/* ============================================
   Helper Text / Form Text
   ============================================ */

.form-text {
  display: block;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--color-text-muted);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ============================================
   Validation Feedback
   ============================================ */

.invalid-feedback {
  display: none;
  width: 100%;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--color-error);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.invalid-feedback::before {
  content: "⚠ ";
  margin-right: 0.25rem;
}

.form-control.is-invalid ~ .invalid-feedback,
.form-select.is-invalid ~ .invalid-feedback,
.was-validated .form-control:invalid ~ .invalid-feedback,
.was-validated .form-select:invalid ~ .invalid-feedback {
  display: block;
}

.valid-feedback {
  display: none;
  width: 100%;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  line-height: 1.3;
  color: var(--color-success);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.valid-feedback::before {
  content: "✓ ";
  margin-right: 0.25rem;
}

.form-control.is-valid ~ .valid-feedback,
.form-select.is-valid ~ .valid-feedback,
.was-validated .form-control:valid ~ .valid-feedback,
.was-validated .form-select:valid ~ .valid-feedback {
  display: block;
}

/* ============================================
   Input Sizes
   ============================================ */

/* Small */
.form-control-sm,
.form-select-sm {
  min-height: 36px;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  border-radius: 4px;
}

.form-select-sm {
  padding-right: 2.25rem;
}

/* Large */
.form-control-lg,
.form-select-lg {
  min-height: 52px;
  padding: 0.75rem 1rem;
  font-size: 1.125rem;
  border-radius: 4px;
}

.form-select-lg {
  padding-right: 2.75rem;
}

/* ============================================
   Input Groups
   ============================================ */

.input-group > .form-control,
.input-group > .form-select {
  position: relative;
  flex: 1 1 auto;
  width: 1%;
  min-width: 0;
}

.input-group > .form-control:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: -1.5px;
}

.input-group > .form-control:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 0.625rem 0.875rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text-muted);
  text-align: center;
  white-space: nowrap;
  background-color: var(--color-bg-surface-subtle);
  border: 1.5px solid var(--color-border-base);
  border-radius: 4px;
}

.input-group > .input-group-text:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: -1.5px;
}

.input-group > .input-group-text:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

/* ============================================
   Floating Labels
   ============================================ */

.form-floating {
  position: relative;
}

.form-floating > .form-control,
.form-floating > .form-select {
  height: 58px;
  padding: 1rem 0.875rem;
}

.form-floating > label {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  padding: 1rem 0.875rem;
  pointer-events: none;
  border: 1.5px solid transparent;
  transform-origin: 0 0;
  transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 400;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select ~ label {
  opacity: 0.65;
  transform: scale(0.75) translateY(-0.5rem) translateX(0.15rem);
  font-size: 0.75rem;
}

/* ============================================
   Read-only Inputs
   ============================================ */

.form-control[readonly] {
  background-color: var(--color-bg-surface-subtle);
  border-color: var(--color-border-subtle);
  opacity: 1;
}

/* ============================================
   Plaintext Inputs
   ============================================ */

.form-control-plaintext {
  display: block;
  width: 100%;
  padding: 0.625rem 0;
  margin-bottom: 0;
  line-height: 1.5;
  color: var(--color-text-base);
  background-color: transparent;
  border: solid transparent;
  border-width: 1.5px 0;
}

.form-control-plaintext:focus {
  outline: 0;
}

.form-control-plaintext.form-control-sm,
.form-control-plaintext.form-control-lg {
  padding-right: 0;
  padding-left: 0;
}

/* ============================================
   File Input
   ============================================ */

.form-control[type="file"] {
  overflow: hidden;
}

.form-control[type="file"]:not(:disabled):not([readonly]) {
  cursor: pointer;
}

/* ============================================
   Color Input
   ============================================ */

.form-control[type="color"] {
  height: 44px;
  padding: 0.375rem;
}

.form-control[type="color"]:not(:disabled):not([readonly]) {
  cursor: pointer;
}

/* ============================================
   Range Input
   ============================================ */

.form-range {
  width: 100%;
  height: 1.5rem;
  padding: 0;
  background-color: transparent;
  appearance: none;
}

.form-range:focus {
  outline: 0;
}

.form-range:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px var(--color-purple-signal-4);
}

.form-range:focus::-moz-range-thumb {
  box-shadow: 0 0 0 3px var(--color-purple-signal-4);
}

.form-range::-webkit-slider-track {
  width: 100%;
  height: 0.5rem;
  color: transparent;
  cursor: pointer;
  background-color: var(--color-bg-surface-muted);
  border-color: transparent;
  border-radius: 1rem;
}

.form-range::-webkit-slider-thumb {
  width: 1rem;
  height: 1rem;
  margin-top: -0.25rem;
  background-color: var(--color-primary);
  border: 0;
  border-radius: 1rem;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  appearance: none;
}

.form-range::-webkit-slider-thumb:active {
  background-color: var(--color-primary-hover);
}

.form-range::-moz-range-track {
  width: 100%;
  height: 0.5rem;
  color: transparent;
  cursor: pointer;
  background-color: var(--color-bg-surface-muted);
  border-color: transparent;
  border-radius: 1rem;
}

.form-range::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  background-color: var(--color-primary);
  border: 0;
  border-radius: 1rem;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  appearance: none;
}

.form-range::-moz-range-thumb:active {
  background-color: var(--color-primary-hover);
}

.form-range:disabled {
  pointer-events: none;
}

.form-range:disabled::-webkit-slider-thumb {
  background-color: var(--color-border-subtle);
}

.form-range:disabled::-moz-range-thumb {
  background-color: var(--color-border-subtle);
}

/* ============================================
   Dark Mode Support
   ============================================ */

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
  background-color: var(--color-bg-surface);
  color: var(--color-text-base);
  border-color: var(--color-border-base);
}

[data-theme="dark"] .form-control::placeholder {
  color: var(--color-text-muted);
}

[data-theme="dark"] .input-group-text {
  background-color: var(--color-bg-surface-subtle);
  color: var(--color-text-muted);
  border-color: var(--color-border-base);
}

/* Dark mode dropdown arrow - lighter color for visibility */
[data-theme="dark"] .form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23c9c9d1' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}

/* Dark mode dropdown options */
[data-theme="dark"] .form-select option {
  background-color: var(--color-neutral-2);
  color: var(--color-text-base);
}

/* Dark mode selected options */
[data-theme="dark"] .form-select option:checked,
[data-theme="dark"] .form-select option:focus {
  background-color: var(--color-purple-signal-8);
  color: var(--color-text-base);
}

/* Dark mode hover state */
[data-theme="dark"] .form-control:hover:not(:disabled):not(:focus),
[data-theme="dark"] .form-select:hover:not(:disabled):not(:focus) {
  background-color: var(--color-bg-surface-subtle);
  border-color: var(--color-border-strong);
}

/* Dark mode focus/active state - keep dark background */
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-control:active,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-select:active {
  background-color: var(--color-bg-surface);
  color: var(--color-text-base);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-purple-signal-3);
}

/* Dark mode textarea focus */
[data-theme="dark"] textarea.form-control:focus,
[data-theme="dark"] textarea.form-control:active {
  background-color: var(--color-bg-surface);
  color: var(--color-text-base);
}

/* Dark mode disabled state */
[data-theme="dark"] .form-select:disabled,
[data-theme="dark"] .form-control:disabled {
  background-color: var(--color-neutral-3);
  border-color: var(--color-border-subtle);
  color: var(--color-text-disabled);
}

/* Dark mode error state with updated arrow color */
[data-theme="dark"] .form-select.is-invalid,
[data-theme="dark"] .was-validated .form-select:invalid {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23c9c9d1' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e"),
                    url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23e5484d'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23e5484d' stroke='none'/%3e%3c/svg%3e");
}

/* Dark mode date/time inputs */
[data-theme="dark"] .form-control[type="date"],
[data-theme="dark"] .form-control[type="time"],
[data-theme="dark"] .form-control[type="datetime-local"],
[data-theme="dark"] .form-control[type="month"],
[data-theme="dark"] .form-control[type="week"] {
  color-scheme: dark;
}

/* Dark mode date picker calendar icon visibility */
[data-theme="dark"] .form-control[type="date"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] .form-control[type="time"]::-webkit-calendar-picker-indicator,
[data-theme="dark"] .form-control[type="datetime-local"]::-webkit-calendar-picker-indicator {
  filter: invert(1);
  opacity: 0.8;
}

[data-theme="dark"] .form-control[type="date"]::-webkit-calendar-picker-indicator:hover,
[data-theme="dark"] .form-control[type="time"]::-webkit-calendar-picker-indicator:hover,
[data-theme="dark"] .form-control[type="datetime-local"]::-webkit-calendar-picker-indicator:hover {
  opacity: 1;
}

/* ============================================
   Accessibility
   ============================================ */

/* High contrast mode support */
@media (prefers-contrast: high) {
  .form-control,
  .form-select {
    border-width: 2px;
  }

  .form-control:focus,
  .form-select:focus {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .form-control,
  .form-select,
  .form-check-input,
  .form-range::-webkit-slider-thumb,
  .form-range::-moz-range-thumb {
    transition: none;
  }
}

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