/* ============================================
   Kitchen Quiz Builder - Frontend CSS
   ============================================ */

/* CSS Variables */
.kqb-quiz-wrapper {
    --kqb-primary: #FF6B00;
    --kqb-primary-light: #FF8C33;
    --kqb-primary-dark: #E05E00;
    --kqb-primary-bg: #FFF3EB;
    --kqb-bg: #ffffff;
    --kqb-bg-card: #f5f5f5;
    --kqb-bg-card-hover: #eeeeee;
    --kqb-text: #333333;
    --kqb-text-light: #666666;
    --kqb-text-muted: #999999;
    --kqb-border: #e0e0e0;
    --kqb-border-light: #f0f0f0;
    --kqb-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --kqb-shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.12);
    --kqb-radius: 12px;
    --kqb-radius-sm: 8px;
    --kqb-transition: 0.3s ease;
}

/* ============================================
   Quiz Wrapper
   ============================================ */

.kqb-quiz-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--kqb-text);
    line-height: 1.6;
    box-sizing: border-box;
}

.kqb-quiz-wrapper *,
.kqb-quiz-wrapper *::before,
.kqb-quiz-wrapper *::after {
    box-sizing: border-box;
}

/* ============================================
   Header
   ============================================ */

.kqb-quiz-header {
    text-align: center;
    margin-bottom: 30px;
}

.kqb-quiz-title {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--kqb-text);
    line-height: 1.2;
}

.kqb-quiz-subtitle {
    font-size: 16px;
    color: var(--kqb-text-light);
    margin: 0;
}

/* ============================================
   Progress Bar
   ============================================ */

.kqb-progress-bar {
    position: relative;
    width: 100%;
    height: 8px;
    background: var(--kqb-bg-card);
    border-radius: 4px;
    margin-bottom: 8px;
    overflow: hidden;
}

.kqb-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--kqb-primary), var(--kqb-primary-light));
    border-radius: 4px;
    width: 8.333%;
    transition: width var(--kqb-transition);
}

.kqb-progress-text {
    text-align: center;
    font-size: 13px;
    color: var(--kqb-text-muted);
    margin-bottom: 20px;
}

/* ============================================
   Step Indicators
   ============================================ */

.kqb-step-indicators {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.kqb-step-indicator {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--kqb-bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--kqb-transition);
    border: 2px solid transparent;
}

.kqb-step-indicator-number {
    font-size: 12px;
    font-weight: 600;
    color: var(--kqb-text-muted);
    transition: color var(--kqb-transition);
}

.kqb-step-indicator.kqb-active {
    background: var(--kqb-primary);
    border-color: var(--kqb-primary);
    transform: scale(1.15);
}

.kqb-step-indicator.kqb-active .kqb-step-indicator-number {
    color: #fff;
}

.kqb-step-indicator.kqb-completed {
    background: var(--kqb-primary-bg);
    border-color: var(--kqb-primary);
}

.kqb-step-indicator.kqb-completed .kqb-step-indicator-number {
    color: var(--kqb-primary);
}

/* ============================================
   Steps Container
   ============================================ */

.kqb-steps-container {
    position: relative;
    overflow: hidden;
    min-height: 300px;
}

.kqb-step {
    display: none;
    animation: kqbStepFadeIn 0.4s ease;
}

.kqb-step.kqb-step-active {
    display: block;
}

@keyframes kqbStepFadeIn {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.kqb-step-content {
    background: var(--kqb-bg);
    border: 1px solid var(--kqb-border-light);
    border-radius: var(--kqb-radius);
    padding: 30px;
    box-shadow: var(--kqb-shadow);
}

.kqb-step-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 6px 0;
    color: var(--kqb-text);
}

.kqb-step-description {
    font-size: 14px;
    color: var(--kqb-text-light);
    margin: 0 0 24px 0;
}

/* ============================================
   Radio Options (with images)
   ============================================ */

.kqb-options-grid {
    display: grid;
    gap: 12px;
    margin-top: 16px;
}

.kqb-options-with-images.kqb-options-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: auto;
    align-items: stretch;
}

.kqb-options-text-only.kqb-options-grid {
    grid-template-columns: 1fr;
}

.kqb-option-card {
    cursor: pointer;
    display: block;
    position: relative;
    border: 2px solid var(--kqb-border);
    border-radius: var(--kqb-radius-sm);
    overflow: hidden;
    transition: all var(--kqb-transition);
    background: var(--kqb-bg);
    width: 100%;
}

.kqb-option-card:hover {
    border-color: var(--kqb-primary-light);
    background: #FFF8F0;
}

.kqb-option-card input[type="radio"] {
    position: absolute !important;
    opacity: 0;
    width: 0;
    height: 0;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none;
}

.kqb-option-card input[type="radio"]:checked + .kqb-option-card-inner {
    border-color: var(--kqb-primary);
    background: var(--kqb-primary-bg);
}

.kqb-option-card input[type="radio"]:focus-visible + .kqb-option-card-inner {
    outline: 2px solid var(--kqb-primary);
    outline-offset: 2px;
}

.kqb-option-card-inner {
    display: flex;
    flex-direction: column;
    transition: all var(--kqb-transition);
    height: 100%;
}

.kqb-option-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-radius: var(--kqb-radius-sm) var(--kqb-radius-sm) 0 0;
    margin-bottom: 0;
    background: var(--kqb-bg-card);
    flex-shrink: 0;
}

.kqb-option-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.kqb-option-card:hover .kqb-option-image img {
    transform: scale(1.05);
}

.kqb-option-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--kqb-text);
    text-align: center;
    padding: 10px 8px 4px;
}

.kqb-option-description {
    font-size: 12px;
    color: var(--kqb-text-light);
    text-align: center;
    margin-top: 2px;
    line-height: 1.4;
    padding: 0 8px 10px;
}

/* Text-only radio cards */
.kqb-options-text-only .kqb-option-card-inner {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
}

.kqb-options-text-only .kqb-option-card-inner::before {
    content: '';
    width: 20px;
    height: 20px;
    min-width: 20px;
    border-radius: 50%;
    border: 2px solid var(--kqb-border);
    transition: all var(--kqb-transition);
    position: relative;
}

.kqb-options-text-only .kqb-option-card input[type="radio"]:checked + .kqb-option-card-inner::before {
    border-color: var(--kqb-primary);
    background: var(--kqb-primary);
    box-shadow: inset 0 0 0 3px #fff;
}

.kqb-options-text-only .kqb-option-label {
    text-align: left;
    font-size: 15px;
}

/* ============================================
   Checkboxes Grid
   ============================================ */

.kqb-checkboxes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 16px;
    align-items: stretch;
}

.kqb-checkbox-card {
    cursor: pointer;
    display: flex;
    align-items: center;
    border: 2px solid var(--kqb-border);
    border-radius: var(--kqb-radius-sm);
    padding: 12px 14px;
    transition: border-color 0.15s ease, background 0.15s ease;
    background: var(--kqb-bg);
}

.kqb-checkbox-card:hover {
    border-color: var(--kqb-primary-light);
    background: var(--kqb-primary-bg);
}

.kqb-checkbox-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.kqb-checkbox-card input[type="checkbox"]:checked + .kqb-checkbox-card-inner {
    border-color: transparent;
}

.kqb-checkbox-card input[type="checkbox"]:checked ~ .kqb-checkbox-card-inner,
.kqb-checkbox-card:has(input:checked) {
    border-color: var(--kqb-primary);
    background: var(--kqb-primary-bg);
}

.kqb-checkbox-card-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.kqb-checkbox-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    min-width: 20px;
    flex-shrink: 0;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--kqb-border);
    border-radius: 4px;
    transition: all var(--kqb-transition);
    background: #fff;
}

.kqb-checkbox-card input[type="checkbox"]:checked + .kqb-checkbox-card-inner .kqb-checkbox-custom {
    background: var(--kqb-primary);
    border-color: var(--kqb-primary);
}

.kqb-checkbox-card input[type="checkbox"]:checked + .kqb-checkbox-card-inner .kqb-checkbox-custom::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-top: -2px;
}

.kqb-checkbox-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--kqb-text);
    line-height: 1.3;
}

/* Checkbox with image */
.kqb-checkboxes-with-images {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.kqb-checkboxes-with-images .kqb-checkbox-card {
    padding: 0;
    overflow: hidden;
    border-radius: var(--kqb-radius);
}

.kqb-checkboxes-with-images .kqb-checkbox-card-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    position: relative;
}

.kqb-checkbox-image {
    display: block;
    width: 100%;
    height: 140px;
    overflow: hidden;
}

.kqb-checkbox-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--kqb-transition);
}

.kqb-checkbox-card:hover .kqb-checkbox-image img {
    transform: scale(1.03);
}

.kqb-checkboxes-with-images .kqb-checkbox-custom {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 2;
}

.kqb-checkboxes-with-images .kqb-checkbox-label {
    padding: 10px 12px;
    font-size: 13px;
    text-align: center;
}

.kqb-checkbox-description {
    font-size: 11px;
    color: var(--kqb-text-light);
    line-height: 1.4;
    padding: 0 12px 10px;
    text-align: center;
}

/* ============================================
   File Upload
   ============================================ */

.kqb-file-upload-section {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--kqb-border-light);
}

.kqb-file-upload-section h4 {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 12px 0;
    color: var(--kqb-text);
}

.kqb-file-upload-zone {
    border: 2px dashed var(--kqb-border);
    border-radius: var(--kqb-radius);
    padding: 30px;
    text-align: center;
    cursor: pointer;
    transition: all var(--kqb-transition);
    position: relative;
    background: var(--kqb-bg-card);
}

.kqb-file-upload-zone:hover,
.kqb-file-upload-zone.kqb-drag-over {
    border-color: var(--kqb-primary);
    background: var(--kqb-primary-bg);
}

.kqb-file-upload-zone.kqb-drag-over {
    
}

.kqb-file-upload-icon {
    color: var(--kqb-text-muted);
    margin-bottom: 10px;
    transition: color var(--kqb-transition);
}

.kqb-file-upload-zone:hover .kqb-file-upload-icon {
    color: var(--kqb-primary);
}

.kqb-file-upload-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--kqb-text);
    margin: 0 0 4px 0;
}

.kqb-file-upload-hint {
    font-size: 12px;
    color: var(--kqb-text-muted);
    margin: 0;
}

.kqb-file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.kqb-file-name {
    margin-top: 8px;
    font-size: 13px;
    color: var(--kqb-primary);
    font-weight: 500;
    display: none;
}

.kqb-file-name.kqb-has-file {
    display: block;
}

/* ============================================
   Text / Number / Email / Tel Inputs
   ============================================ */

.kqb-text-input-group,
.kqb-number-input-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.kqb-input-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.kqb-input-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--kqb-text);
}

.kqb-text-input,
.kqb-number-input,
.kqb-tel-input,
.kqb-email-input {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px;
    border: 2px solid var(--kqb-border);
    border-radius: var(--kqb-radius-sm);
    background: var(--kqb-bg);
    color: var(--kqb-text);
    transition: all var(--kqb-transition);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.kqb-text-input:focus,
.kqb-number-input:focus,
.kqb-tel-input:focus,
.kqb-email-input:focus {
    border-color: var(--kqb-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.15);
}

.kqb-text-input::placeholder,
.kqb-number-input::placeholder,
.kqb-tel-input::placeholder,
.kqb-email-input::placeholder {
    color: var(--kqb-text-muted);
}

.kqb-text-input.kqb-input-error,
.kqb-number-input.kqb-input-error,
.kqb-tel-input.kqb-input-error,
.kqb-email-input.kqb-input-error {
    border-color: #d63638;
    box-shadow: 0 0 0 3px rgba(214, 54, 56, 0.15);
}

.kqb-error-message {
    font-size: 12px;
    color: #d63638;
    margin-top: 4px;
    display: none;
}

.kqb-error-message.kqb-visible {
    display: block;
}

/* Remove number input spinners */
.kqb-number-input::-webkit-outer-spin-button,
.kqb-number-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.kqb-number-input[type=number] {
    -moz-appearance: textfield;
}

/* ============================================
   Navigation Buttons
   ============================================ */

.kqb-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    gap: 12px;
}

.kqb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--kqb-radius-sm);
    cursor: pointer;
    transition: all var(--kqb-transition);
    text-decoration: none;
    outline: none;
    font-family: inherit;
}

.kqb-btn:focus-visible {
    outline: 2px solid var(--kqb-primary);
    outline-offset: 2px;
}

.kqb-btn-back {
    background: var(--kqb-bg-card);
    color: var(--kqb-text);
    border: 2px solid var(--kqb-border);
}

.kqb-btn-back:hover {
    background: var(--kqb-bg-card-hover);
    border-color: var(--kqb-text-muted);
}

.kqb-btn-next,
.kqb-btn-submit {
    background: var(--kqb-primary);
    color: #fff;
    margin-left: auto;
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

.kqb-btn-next:hover,
.kqb-btn-submit:hover {
    background: var(--kqb-primary-dark);
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
    transform: translateY(-1px);
}

.kqb-btn-next:active,
.kqb-btn-submit:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(255, 107, 0, 0.3);
}

.kqb-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.kqb-btn.kqb-loading {
    position: relative;
    pointer-events: none;
}

.kqb-btn.kqb-loading::after {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: kqbBtnSpin 0.7s linear infinite;
}

@keyframes kqbBtnSpin {
    to { transform: rotate(360deg); }
}

/* ============================================
   Success Message
   ============================================ */

.kqb-success-message {
    text-align: center;
    padding: 60px 20px;
    animation: kqbSuccessIn 0.6s ease;
}

@keyframes kqbSuccessIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.kqb-success-icon {
    margin-bottom: 20px;
    animation: kqbCheckMark 0.6s ease 0.3s both;
}

@keyframes kqbCheckMark {
    from {
        opacity: 0;
        transform: scale(0) rotate(-45deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotate(0);
    }
}

.kqb-success-message p {
    font-size: 20px;
    font-weight: 600;
    color: var(--kqb-text);
    margin: 0;
    line-height: 1.5;
}

/* ============================================
   Validation Highlight for Radio/Checkbox
   ============================================ */

.kqb-options-grid.kqb-validation-error,
.kqb-checkboxes-grid.kqb-validation-error {
    outline: 2px solid #d63638;
    outline-offset: 2px;
    border-radius: var(--kqb-radius-sm);
}


/* ============================================
   Selected State - Enhanced Visual Feedback
   ============================================ */

.kqb-option-card:has(input:checked) {
    border-color: var(--kqb-primary) !important;
    background: var(--kqb-primary-bg) !important;
    
}





.kqb-checkbox-card:has(input:checked) {
    border-color: var(--kqb-primary) !important;
    background: var(--kqb-primary-bg) !important;
}



/* Checkmark overlay animation */
.kqb-check-mark {
    animation: kqbCheckMarkIn 0.3s ease;
}

@keyframes kqbCheckMarkIn {
    from {
        opacity: 0;
        transform: scale(0);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}


/* ============================================
   Step Header Row (with optional image)
   ============================================ */

.kqb-step-header-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}

.kqb-step-header-text {
    flex: 1;
    min-width: 0;
}

.kqb-step-header-text .kqb-step-title {
    margin: 0 0 6px 0;
}

.kqb-step-header-text .kqb-step-description {
    margin: 0;
}

.kqb-step-header-image {
    flex-shrink: 0;
    width: 210px;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kqb-step-header-image img {
    max-width: 100%;
    max-height: 165px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 6px;
    border: 1px solid #f0f0f0;
}