/**
 * Form Component - PPL Questions v2
 *
 * Unified form styling system for consistent inputs across the application.
 *
 * Usage:
 *   <div class="form-group">
 *       <label class="form-label">Email <span class="form-label__required">*</span></label>
 *       <input type="email" class="form-input" placeholder="Enter email">
 *       <p class="form-hint">We'll never share your email.</p>
 *   </div>
 *
 *   <div class="form-group">
 *       <label class="form-label">Category</label>
 *       <select class="form-select">
 *           <option>Option 1</option>
 *       </select>
 *   </div>
 */

/* =========================================================================
   FORM GROUP
   Container for label + input + hint
   ========================================================================= */

.form-group {
    margin-bottom: 1.5rem !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    align-items: stretch !important;
    padding: 0 !important;
    font-size: inherit !important;
    color: inherit !important;
}

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

/* Form row - side by side inputs */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* =========================================================================
   FORM LABEL
   ========================================================================= */

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium, 500);
    color: var(--color-text-secondary, #495057);
}

.form-label__required {
    color: var(--color-danger, #dc3545);
    margin-left: 0.125rem;
}

/* =========================================================================
   FORM INPUT
   Text inputs, email, password, number, etc.
   ========================================================================= */

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text-primary, #212529);
    background: var(--color-bg-card, #ffffff);
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--radius-md, 6px);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.form-input::placeholder {
    color: var(--color-text-muted, #adb5bd);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary, #368BC1);
    box-shadow: var(--input-focus-ring, 0 0 0 3px rgba(54, 139, 193, 0.15));
}

.form-input:disabled {
    background: var(--color-gray-100, #f1f3f5);
    color: var(--color-text-muted, #adb5bd);
    cursor: not-allowed;
}

/* File input */
.form-input[type="file"] {
    padding: 0.5rem;
    cursor: pointer;
}

.form-input[type="file"]::file-selector-button {
    padding: 0.5rem 1rem;
    margin-right: 1rem;
    background: var(--color-primary, #368BC1);
    color: white;
    border: none;
    border-radius: var(--radius-sm, 4px);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium, 500);
    cursor: pointer;
    transition: background 0.2s ease;
}

.form-input[type="file"]::file-selector-button:hover {
    background: var(--color-primary-dark, #2a6d96);
}

/* =========================================================================
   FORM SELECT
   Dropdown selects
   ========================================================================= */

.form-select {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text-primary, #212529);
    background-color: var(--color-bg-card, #ffffff);
    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='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--radius-md, 6px);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary, #368BC1);
    box-shadow: var(--input-focus-ring, 0 0 0 3px rgba(54, 139, 193, 0.15));
}

.form-select:disabled {
    background-color: var(--color-gray-100, #f1f3f5);
    color: var(--color-text-muted, #adb5bd);
    cursor: not-allowed;
}

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

.form-textarea {
    width: 100%;
    min-height: 120px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text-primary, #212529);
    background: var(--color-bg-card, #ffffff);
    border: 1px solid var(--color-border, #dee2e6);
    border-radius: var(--radius-md, 6px);
    resize: vertical;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    box-sizing: border-box;
}

.form-textarea::placeholder {
    color: var(--color-text-muted, #adb5bd);
}

.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary, #368BC1);
    box-shadow: var(--input-focus-ring, 0 0 0 3px rgba(54, 139, 193, 0.15));
}

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

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    cursor: pointer;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--color-primary, #368BC1);
}

.form-check-label {
    font-size: 0.95rem;
    color: var(--color-text-primary, #212529);
    cursor: pointer;
    user-select: none;
}

/* =========================================================================
   FORM HINT & FEEDBACK
   Helper text and validation messages
   ========================================================================= */

.form-hint {
    margin: 0.35rem 0 0;
    font-size: 0.85rem;
    color: var(--color-text-muted, #6c757d);
}

.form-feedback {
    margin: 0.5rem 0 0;
    font-size: 0.875rem;
    min-height: 1.25rem;
}

.form-feedback:empty {
    display: none;
}

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

/* Valid/Success state */
.form-input.is-valid,
.form-select.is-valid,
.form-textarea.is-valid {
    border-color: var(--color-success, #28a745);
}

.form-input.is-valid:focus,
.form-select.is-valid:focus,
.form-textarea.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.15);
}

.form-feedback.is-valid {
    color: var(--color-success, #28a745);
}

/* Invalid/Error state */
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--color-danger, #dc3545);
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
}

.form-feedback.is-invalid {
    color: var(--color-danger, #dc3545);
}

/* =========================================================================
   INPUT SIZES
   ========================================================================= */

.form-input--sm,
.form-select--sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.form-input--lg,
.form-select--lg {
    padding: 1rem 1.25rem;
    font-size: 1.125rem;
}

/* =========================================================================
   INPUT GROUP
   Input with prefix/suffix addons
   ========================================================================= */

.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-input {
    flex: 1;
    min-width: 0;
    border-radius: 0;
}

.input-group .form-input:first-child {
    border-radius: var(--radius-md, 6px) 0 0 var(--radius-md, 6px);
}

.input-group .form-input:last-child {
    border-radius: 0 var(--radius-md, 6px) var(--radius-md, 6px) 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: var(--color-text-secondary, #495057);
    background: var(--color-gray-100, #f1f3f5);
    border: 1px solid var(--color-border, #dee2e6);
}

.input-group-text:first-child {
    border-radius: var(--radius-md, 6px) 0 0 var(--radius-md, 6px);
    border-right: none;
}

.input-group-text:last-child {
    border-radius: 0 var(--radius-md, 6px) var(--radius-md, 6px) 0;
    border-left: none;
}

/* =========================================================================
   MOBILE ADJUSTMENTS
   ========================================================================= */

@media (max-width: 768px) {
    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
}