/* ===================================================================
   Form Components
   Comprehensive form styling for all form elements
   =================================================================== */

/* ===== FORM LAYOUT ===== */
.form {
  width: 100%;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-row {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.form-row .form-group {
  flex: 1;
  margin-bottom: 0;
}

/* ===== LABELS ===== */
.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-color);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

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

.form-label i {
  margin-right: var(--space-xs);
  color: var(--primary-color);
}

/* ===== INPUT ELEMENTS ===== */
.form-control {
  display: block;
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-color);
  background-color: white;
  background-clip: padding-box;
  border: var(--input-border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  box-sizing: border-box;
  min-height: var(--input-height);
}

.form-control:focus {
  color: var(--text-color);
  background-color: white;
  border-color: var(--primary-color);
  outline: 0;
  box-shadow: var(--input-focus-shadow);
}

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

.form-control:disabled,
.form-control[readonly] {
  background-color: var(--bg-light);
  opacity: 1;
  cursor: not-allowed;
}

/* ===== INPUT SIZES ===== */
.form-control-sm {
  min-height: 36px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
}

.form-control-lg {
  min-height: 56px;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

/* ===== TEXTAREA ===== */
textarea.form-control {
  min-height: 120px;
  resize: vertical;
  line-height: var(--line-height-relaxed);
}

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

textarea.form-control-lg {
  min-height: 160px;
}

/* ===== SELECT ===== */
select.form-control {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-sm) center;
  background-repeat: no-repeat;
  background-size: 16px 12px;
  padding-right: calc(var(--space-xl) + 16px);
}

select.form-control:focus {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23ff7a59' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

/* ===== INPUT GROUPS ===== */
.input-group {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  width: 100%;
}

.input-group .form-control {
  position: relative;
  flex: 1 1 auto;
  width: 1%;
  min-width: 0;
  margin-bottom: 0;
}

.input-group .form-control:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: none;
}

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

.input-group-prepend,
.input-group-append {
  display: flex;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: var(--input-padding-y) var(--input-padding-x);
  margin-bottom: 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--text-secondary);
  text-align: center;
  white-space: nowrap;
  background-color: var(--bg-light);
  border: var(--input-border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
}

.input-group-prepend .input-group-text {
  border-right: none;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group-append .input-group-text {
  border-left: none;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* ===== CHECKBOXES & RADIOS ===== */
.form-check {
  position: relative;
  display: block;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.form-check-input {
  position: absolute;
  top: 0.125rem;
  left: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  cursor: pointer;
  background-color: white;
  border: 2px solid var(--border-color);
  transition: all var(--transition-fast);
}

.form-check-input[type="checkbox"] {
  border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check-input:focus {
  border-color: var(--primary-color);
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(255, 122, 89, 0.25);
}

.form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.form-check-input:checked[type="checkbox"] {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3e%3cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3e%3c/svg%3e");
}

.form-check-input:checked[type="radio"] {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='white'/%3e%3c/svg%3e");
}

.form-check-label {
  color: var(--text-color);
  cursor: pointer;
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  margin-bottom: 0;
}

/* ===== VALIDATION STATES ===== */
.form-control.is-valid {
  border-color: var(--success-color);
  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 8 8'%3e%3cpath fill='%2328a745' d='m2.3 6.73.16-.06c.45-.22.93-.47 1.33-.82l.02-.02c.4-.35.72-.84.9-1.34.16-.5.16-1.03-.01-1.52-.16-.5-.49-.96-.86-1.32L3.8 1.74c-.37-.36-.83-.62-1.32-.78C2 .9 1.5.9 1.05 1.06c-.45.15-.87.42-1.19.77-.32.35-.54.78-.64 1.24-.1.46-.06.94.12 1.38.18.44.5.81.88 1.08z'/%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 {
  border-color: var(--success-color);
  box-shadow: 0 0 0 0.25rem rgba(40, 167, 69, 0.25);
}

.form-control.is-invalid {
  border-color: var(--danger-color);
  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='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.25 5.25 2.5 2.5m0-2.5-2.5 2.5'/%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 {
  border-color: var(--danger-color);
  box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

.valid-feedback {
  display: none;
  width: 100%;
  margin-top: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--success-color);
}

.invalid-feedback {
  display: none;
  width: 100%;
  margin-top: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--danger-color);
}

.form-control.is-valid ~ .valid-feedback,
.form-control.is-valid ~ .valid-tooltip {
  display: block;
}

.form-control.is-invalid ~ .invalid-feedback,
.form-control.is-invalid ~ .invalid-tooltip {
  display: block;
}

/* ===== HELP TEXT ===== */
.form-text {
  margin-top: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: var(--line-height-normal);
}

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

/* ===== FLOATING LABELS ===== */
.form-floating {
  position: relative;
}

.form-floating > .form-control {
  height: calc(3.5rem + 2px);
  padding: 1rem 0.75rem 0.25rem;
}

.form-floating > label {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  padding: 1rem 0.75rem;
  pointer-events: none;
  border: 1px solid transparent;
  transform-origin: 0 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
  opacity: 0.65;
  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* ===== SPECIAL FORM COMPONENTS ===== */

/* Newsletter Form */
.newsletter-form .input-group {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--border-light);
  overflow: hidden;
}

.newsletter-form .form-control {
  border: none;
  box-shadow: none;
  border-radius: 0;
}

.newsletter-form .form-control:focus {
  box-shadow: none;
  border-color: transparent;
}

.newsletter-form .input-group:focus-within {
  border-color: var(--primary-color);
  box-shadow: var(--input-focus-shadow);
}

/* Search Form */
.search-form {
  position: relative;
  max-width: 400px;
}

.search-form .form-control {
  padding-left: calc(var(--space-xl) + 16px);
}

.search-form .search-icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Contact Form */
.contact-form {
  background: white;
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.contact-form .form-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--text-color);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.contact-form .form-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--space-xl);
}

/* ===== RESPONSIVE FORM STYLES ===== */
@media (max-width: 768px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .form-row .form-group {
    margin-bottom: var(--space-lg);
  }
  
  .input-group {
    flex-direction: column;
  }
  
  .input-group .form-control {
    border-radius: var(--radius-lg) !important;
    border: var(--input-border-width) solid var(--border-color) !important;
  }
  
  .input-group-prepend .input-group-text,
  .input-group-append .input-group-text {
    border-radius: var(--radius-lg) !important;
    border: var(--input-border-width) solid var(--border-color) !important;
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
  
  .newsletter-form .input-group {
    flex-direction: column;
    gap: var(--space-sm);
  }
}