/*
 * forms.css
 * Biharibuilder Design System — Form System
 * Version: 1.0
 *
 * Covers: inputs, select, textarea, labels, validation states,
 *         floating labels, and form layout utilities.
 *
 * Rules from design system:
 *   - Input height: 52px
 *   - Radius: 12px
 *   - Focus border: Copper
 *   - Floating labels
 *   - Inline validation
 */

/* =========================================================
   FORM WRAPPER
   ========================================================= */

.form {
  width: 100%;
}

/* =========================================================
   FORM GROUP — label + input wrapper
   ========================================================= */

.form-group {
  position: relative;
  margin-bottom: var(--space-6);  /* 24px */
}

/* =========================================================
   LABELS
   ========================================================= */

.form-label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-caption);       /* 14px */
  font-weight: var(--weight-semibold);
  color: var(--form-label);            /* anthracite */
  margin-bottom: var(--space-2);       /* 8px */
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* Required indicator */
.form-label--required::after {
  content: ' *';
  color: var(--color-copper);
  font-weight: var(--weight-bold);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: var(--form-input-height);    /* 52px */
  padding-inline: var(--space-4);      /* 16px */
  padding-block: 0;

  font-family: var(--font-body);
  font-size: var(--text-small);        /* 16px */
  font-weight: var(--weight-regular);
  color: var(--text-heading);

  background-color: var(--form-input-bg);
  border: 1.5px solid var(--form-input-border);
  border-radius: var(--radius-input);  /* 12px */

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

  transition:
    border-color  var(--transition-fast),
    box-shadow    var(--transition-fast),
    background    var(--transition-fast);
}

/* Placeholder */
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--form-placeholder);    /* concrete #8D8D83 */
  font-weight: var(--weight-regular);
}

/* Hover */
.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--form-input-hover);  /* #BEB8AF */
}

/* Focus */
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--form-input-focus);  /* copper */
  box-shadow: 0 0 0 3px rgba(180, 100, 60, 0.12);
  background-color: #FEFEFE;
}

/* Disabled */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--neutral-100);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.8;
}

/* =========================================================
   TEXTAREA
   ========================================================= */

.form-textarea {
  height: auto;
  min-height: 120px;
  padding-block: var(--space-4);     /* 16px */
  resize: vertical;
  line-height: var(--leading-relaxed);
}

/* =========================================================
   SELECT
   ========================================================= */

.form-select {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  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='%23081C3A' 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-4) center;
  background-size: 16px;
  padding-right: var(--space-10);  /* 40px to avoid text under arrow */
  cursor: pointer;
}

.form-select:focus {
  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='%23FF8C1A' 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");
}

/* Select option */
.form-select option {
  background: var(--color-white);
  color: var(--color-navy);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 14px;
  max-width: 100%;
  box-sizing: border-box;
}

/* =========================================================
   CUSTOM RESPONSIVE DROPDOWN MODULE
   Replaces OS-native select overflow menus with 100% contained
   custom floating dropdown menus.
   ========================================================= */

.custom-select-wrapper {
  position: relative;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.custom-select__trigger {
  width: 100%;
  height: 52px;
  padding: 0 40px 0 16px;
  background: var(--color-white);
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-input);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  box-sizing: border-box;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  transition: all var(--transition-fast);
}

.form-group--icon-left .custom-select__trigger {
  padding-left: 48px;
}

.custom-select-wrapper.is-open .custom-select__trigger {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(255, 140, 26, 0.15);
}

.custom-select__arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  pointer-events: none;
  transition: transform var(--transition-fast);
}

.custom-select-wrapper.is-open .custom-select__arrow {
  transform: translateY(-50%) rotate(180deg);
  color: var(--color-orange);
}

.custom-select__menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  width: 100%;
  max-width: 100%;
  background: #FFFFFF;
  border: 1px solid var(--neutral-200);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(8, 28, 58, 0.16);
  z-index: 9999;
  max-height: 240px;
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.custom-select-wrapper.is-open .custom-select__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.custom-select__option {
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-navy);
  cursor: pointer;
  transition: background var(--transition-fast);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.custom-select__option:hover,
.custom-select__option.is-selected {
  background: var(--bg-section-alt);
  color: var(--color-orange);
  font-weight: 600;
}

/* =========================================================
   VALIDATION STATES
   ========================================================= */

/* Error */
.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(179, 58, 58, 0.1);
}

/* Success */
.form-group--success .form-input,
.form-group--success .form-select,
.form-group--success .form-textarea {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px rgba(60, 122, 74, 0.1);
}

/* Error message */
.form-error {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--text-caption);
  color: var(--color-error);
  font-weight: var(--weight-medium);
}

.form-error svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Success message */
.form-success-msg {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
  font-size: var(--text-caption);
  color: var(--color-success);
  font-weight: var(--weight-medium);
}

/* Helper text */
.form-helper {
  margin-top: var(--space-2);
  font-size: var(--text-caption);
  color: var(--text-muted);
  line-height: var(--leading-normal);
}

/* =========================================================
   FORM ICON PREFIX / SUFFIX
   ========================================================= */

.form-group--icon-left .form-input,
.form-group--icon-left .form-select {
  padding-left: 48px;
}

.form-group--icon-right .form-input {
  padding-right: 48px;
}

.form-icon {
  position: absolute;
  top: 42px;
  bottom: auto;
  transform: none;
  width: 20px;
  height: 20px;
  color: var(--color-concrete);
  pointer-events: none;
  transition: color var(--transition-fast);
}

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

.form-group--icon-left .form-input:focus ~ .form-icon--left,
.form-group--icon-right .form-input:focus ~ .form-icon--right {
  color: var(--color-copper);
}

/* =========================================================
   ESTIMATE FORM CARD WRAPPER
   White card containing the main contact form.
   ========================================================= */

.estimate-form-card {
  background: var(--surface-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);   /* 16px */
  padding: var(--space-8);             /* 32px */
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 420px;
}

.estimate-form-card__header {
  margin-bottom: var(--space-6);
}

.estimate-form-card__title {
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  font-weight: var(--weight-bold);
  color: var(--text-heading);
  margin-bottom: var(--space-2);
  line-height: var(--leading-snug);
}

.estimate-form-card__subtitle {
  font-size: var(--text-caption);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

/* Form success state */
.form-success-state {
  display: none;
  text-align: center;
  padding: var(--space-12) var(--space-8);
}

.form-success-state.is-visible {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.form-success-state__icon {
  width: 64px;
  height: 64px;
  background: rgba(60, 122, 74, 0.1);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-success);
}

.form-success-state__title {
  font-family: var(--font-heading);
  font-size: var(--text-subheading);
  font-weight: var(--weight-bold);
  color: var(--text-heading);
}

.form-success-state__message {
  font-size: var(--text-small);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
  max-width: 30ch;
}

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

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-check__input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--form-input-border);
  border-radius: var(--radius-sm);
  appearance: none;
  -webkit-appearance: none;
  background: var(--color-white);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 2px;
}

.form-check__input:checked {
  background: var(--color-copper);
  border-color: var(--color-copper);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 13px;
}

.form-check__input:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.form-check__label {
  font-size: var(--text-small);
  color: var(--text-body);
  line-height: var(--leading-normal);
  cursor: pointer;
}

/* Radio variant */
.form-check__input[type="radio"] {
  border-radius: var(--radius-round);
}

.form-check__input[type="radio"]:checked {
  background-image: none;
  box-shadow: inset 0 0 0 4px var(--color-white);
}