/* ===================================
   ToyPop Lab - Main Styles
   Child-friendly, warm, professional
   =================================== */

/* === GLOBAL RESET & VARIABLES === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors - Warm and playful */
    --primary: #FF6B9D;
    --primary-dark: #E8578A;
    --secondary: #FFA74F;
    --secondary-dark: #FF8C2E;
    --accent: #A78BFA;
    --accent-light: #C4B5FD;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #FDFBF9;
    --cream: #FFF8F0;
    --gray-100: #F7F7F7;
    --gray-200: #E8E8E8;
    --gray-300: #D1D1D1;
    --gray-600: #666666;
    --gray-800: #2D2D2D;
    --black: #1A1A1A;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B9D 0%, #FFA74F 100%);
    --gradient-secondary: linear-gradient(135deg, #A78BFA 0%, #EC4899 100%);
    --gradient-hero: linear-gradient(135deg, #FFF8F0 0%, #FFE8F5 50%, #F0E7FF 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Fredoka', 'Comic Sans MS', cursive;
    --font-secondary: 'Comic Neue', cursive;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === BASE STYLES === */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    color: var(--gray-800);
    background: var(--off-white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--black);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-normal);
}

input, textarea {
    font-family: inherit;
    font-size: 1rem;
}

/* === LAYOUT === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

section {
    padding: var(--spacing-3xl) 0;
}

/* === NAVIGATION === */
.nav-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-text {
    font-family: var(--font-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-800);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary);
    background: var(--cream);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-xs);
}

.mobile-toggle span {
    width: 24px;
    height: 3px;
    background: var(--gray-800);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    border-radius: var(--radius-full);
    text-align: center;
    transition: all var(--transition-normal);
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* === HERO SECTION === */
.hero {
    position: relative;
    background: var(--gradient-hero);
    padding-top: 120px;
    padding-bottom: 100px;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 0 var(--spacing-lg);
}

.hero-text {
    padding: 0 var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-md);
}

.title-line-1 {
    display: block;
    color: var(--accent);
}

.title-line-2 {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-image img {
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
    fill: var(--white);
}

/* === TRUST SECTION === */
.trust-section {
    background: var(--white);
    padding: var(--spacing-2xl) 0;
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.trust-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.trust-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.trust-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-800);
}

.trust-item p {
    color: var(--gray-600);
}

/* === SECTION TITLES === */
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-2xl);
}

/* === HOW IT WORKS === */
.how-it-works {
    background: var(--cream);
}

.main-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.main-step {
    text-align: center;
}

.step-image-container {
    position: relative;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.step-image {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.step-number {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.main-step h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.main-step p {
    color: var(--gray-600);
}

/* Detailed Process */
.detailed-process {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
}

.process-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
}

.process-steps {
    display: grid;
    gap: var(--spacing-lg);
}

.process-step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    background: var(--white);
    box-shadow: var(--shadow-sm);
}

.process-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.process-image {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.process-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.process-content {
    flex: 1;
}

.process-content h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--primary);
}

.process-content p {
    color: var(--gray-600);
}

/* === TRANSFORMATION GALLERY === */
.transformation-gallery {
    background: var(--white);
}

.transformation-showcase {
    position: relative;
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
    min-height: 500px;
}

.showcase-item {
    display: none;
    animation: fadeIn 0.5s ease;
}

.showcase-item.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.showcase-content {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    min-height: 500px;
}

.showcase-content.single-image {
    display: block;
    text-align: center;
}

.showcase-single {
    max-width: 600px;
    margin: 0 auto;
}

.drawing-side, .sculpture-side {
    text-align: center;
}

.showcase-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: 0 auto var(--spacing-md);
    display: block;
}

.showcase-image-large {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
}

.full-width {
    grid-column: 1 / -1;
    text-align: center;
}

.image-label {
    display: inline-block;
    background: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 600;
    color: var(--gray-800);
    box-shadow: var(--shadow-sm);
}

.arrow-divider {
    font-size: 3rem;
    color: var(--primary);
}

.showcase-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
}

.showcase-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: var(--transition-normal);
}

.showcase-btn:hover {
    background: var(--primary);
    color: var(--white);
}

.showcase-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.showcase-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-300);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: var(--transition-normal);
}

.showcase-dot:hover {
    background: var(--primary);
    transform: scale(1.2);
}

.showcase-dot.active {
    background: var(--primary);
    width: 32px;
    border-radius: var(--radius-full);
}

/* Process Gallery */
.process-gallery {
    margin-top: var(--spacing-3xl);
}

.process-gallery-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
}

.process-photos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.process-photo {
    text-align: center;
}

.process-photo img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition-normal);
}

.process-photo img:hover {
    transform: scale(1.05);
}

.process-photo p {
    font-weight: 600;
    color: var(--gray-600);
}

/* === QUIZ SECTION === */
.quiz-section {
    background: var(--gradient-hero);
}

.quiz-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
}

.quiz-question {
    display: none;
}

.quiz-question.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.question-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xl);
    color: var(--accent);
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.quiz-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    background: var(--cream);
    border: 3px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
}

.quiz-option:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.option-emoji {
    font-size: 3rem;
}

.option-text {
    font-weight: 600;
    color: var(--gray-800);
}

/* Quiz Progress */
.quiz-progress {
    margin-top: var(--spacing-xl);
}

.progress-dots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-300);
    transition: var(--transition-normal);
}

.progress-dot.active {
    background: var(--primary);
}

/* Quiz Result */
.quiz-result {
    text-align: center;
}

.quiz-result.hidden {
    display: none;
}

.result-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--accent);
}

.result-content {
    background: var(--cream);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.result-emoji {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.result-name {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.result-tips {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: left;
}

.result-tips h5 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.result-tips ul {
    list-style: none;
    padding: 0;
}

.result-tips li {
    padding: var(--spacing-xs) 0;
    color: var(--gray-600);
}

.result-tips li::before {
    content: "✨ ";
}

.result-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* === SKETCHBOOK SECTION === */
.sketchbook-section {
    background: var(--gradient-hero);
}

.sketchbook-container {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--spacing-xl);
}

.sketchbook-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-200);
}

.tool-group h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-800);
}

.brush-slider {
    width: 100%;
    margin-bottom: var(--spacing-xs);
}

#brushSizeValue {
    display: inline-block;
    font-weight: 600;
    color: var(--primary);
}

.color-palette {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.color-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 3px solid transparent;
    cursor: pointer;
    transition: var(--transition-normal);
}

.color-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.color-btn.active {
    border-color: var(--gray-800);
    box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--primary);
}

.custom-color-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.custom-color-group label {
    font-weight: 600;
}

#customColor {
    width: 60px;
    height: 40px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.tool-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--cream);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-normal);
}

.tool-btn:hover {
    background: var(--gray-200);
    border-color: var(--gray-600);
}

.tool-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.tool-btn.danger:hover {
    background: #fee;
    border-color: #f00;
    color: #f00;
}

.tool-btn span {
    font-size: 1.25rem;
}

.canvas-wrapper {
    position: relative;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

#drawingCanvas {
    display: block;
    width: 100%;
    height: auto;
    background: var(--white);
    cursor: crosshair;
    touch-action: none;
}

.canvas-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.canvas-overlay.hidden {
    opacity: 0;
}

.instruction-content {
    text-align: center;
}

.instruction-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.instruction-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.instruction-content p {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.sketchbook-actions {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.action-note {
    color: var(--gray-600);
    font-style: italic;
}

.sketchbook-tips {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.sketchbook-tips h3 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.tip-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--cream);
    border-radius: var(--radius-md);
}

.tip-emoji {
    display: block;
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.tip-card p {
    color: var(--gray-700);
    font-size: 0.95rem;
}

/* === UPLOAD SECTION === */
.upload-section {
    background: var(--white);
}

.upload-container {
    max-width: 900px;
    margin: 0 auto;
}

.upload-form {
    background: var(--cream);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-xl);
}

.upload-area {
    position: relative;
    min-height: 300px;
    border: 3px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    transition: var(--transition-normal);
}

.upload-area:hover {
    border-color: var(--primary);
    background: var(--white);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    min-height: 300px;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.upload-hint {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-top: var(--spacing-md);
}

.upload-preview {
    position: relative;
    padding: var(--spacing-md);
}

.upload-preview.hidden {
    display: none;
}

.upload-preview img {
    max-height: 400px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.remove-btn {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.remove-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* Form Elements */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    color: var(--gray-800);
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    transition: var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-section {
    margin-bottom: var(--spacing-xl);
}

.form-section-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--gray-800);
}

/* Size Options */
.size-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.size-option input {
    display: none;
}

.size-card {
    position: relative;
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border: 3px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
}

.size-option input:checked + .size-card {
    border-color: var(--primary);
    background: var(--cream);
}

.size-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.size-card.recommended {
    border-color: var(--secondary);
}

.recommended-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.size-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--gray-800);
}

.size-dimension {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
}

.size-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* Material Options */
.material-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.material-option input {
    display: none;
}

.material-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--white);
    border: 3px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-normal);
}

.material-option input:checked + .material-card {
    border-color: var(--primary);
    background: var(--cream);
}

.material-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.material-name {
    font-weight: 700;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.material-desc {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.material-extra {
    margin-top: var(--spacing-xs);
    color: var(--secondary);
    font-weight: 700;
}

.form-actions {
    text-align: center;
}

.form-note {
    margin-top: var(--spacing-sm);
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Upload Tips */
.upload-tips {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.upload-tips h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.upload-tips ul {
    list-style: none;
    padding: 0;
}

.upload-tips li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.upload-tips li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* === FOR EDUCATORS === */
.for-educators {
    background: var(--cream);
}

.educator-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
}

.educator-benefits h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
}

.educator-benefits ul {
    list-style: none;
    padding: 0;
}

.educator-benefits li {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
}

.benefit-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.educator-benefits strong {
    display: block;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.educator-cta {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.educator-cta h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.educator-cta p {
    margin-bottom: var(--spacing-lg);
    color: var(--gray-600);
}

/* === WHY CHOOSE === */
.why-choose {
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--cream);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--gray-600);
}

/* === CONTACT === */
.contact-section {
    background: var(--gradient-hero);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-form-container {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-md);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
}

.contact-item a {
    color: var(--primary);
}

.social-links {
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
}

.social-links h4 {
    margin-bottom: var(--spacing-md);
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icon {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--cream);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: var(--transition-normal);
}

.social-icon:hover {
    background: var(--primary);
    color: var(--white);
}

/* === LOGO SHOWCASE === */
.logo-showcase {
    background: var(--gradient-hero);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.logo-display {
    max-width: 600px;
    margin: 0 auto;
}

.brand-logo {
    width: 100%;
    max-width: 500px;
    height: auto;
    margin: 0 auto var(--spacing-lg);
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.1));
}

.logo-tagline {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    font-family: var(--font-primary);
}

/* === FOOTER === */
.footer {
    background: var(--gray-800);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    height: 40px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-tagline {
    color: var(--gray-300);
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--spacing-xs);
}

.footer-col a {
    color: var(--gray-300);
    transition: var(--transition-normal);
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--gray-300);
}

/* === MODAL === */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: var(--spacing-md);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    max-width: 500px;
    width: 100%;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.modal-content h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.modal-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--gray-600);
}

/* === UTILITIES === */
.hidden {
    display: none !important;
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0 var(--spacing-md);
    }
    
    .hero-text {
        padding: 0;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .main-steps {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        flex-direction: column;
        text-align: center;
    }
    
    .process-image {
        width: 100%;
        max-width: 300px;
        height: 200px;
    }
    
    .showcase-content {
        grid-template-columns: 1fr;
    }
    
    .arrow-divider {
        transform: rotate(90deg);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .educator-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .brand-logo {
        max-width: 350px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .size-options {
        grid-template-columns: 1fr;
    }
    
    .material-options {
        grid-template-columns: 1fr;
    }
    
    .quiz-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-photos {
        grid-template-columns: 1fr;
    }
    
    .process-step {
        padding: var(--spacing-md);
    }
    
    .process-image {
        width: 100%;
        max-width: 250px;
        height: 180px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .brand-logo {
        max-width: 280px;
    }
    
    .logo-tagline {
        font-size: 1.25rem;
    }
    
    .sketchbook-tools {
        grid-template-columns: 1fr;
    }
    
    .tool-buttons {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .tool-btn {
        flex: 1;
        min-width: 120px;
    }
    
    #drawingCanvas {
        width: 100%;
        height: auto;
    }
    
    .sketchbook-actions {
        flex-direction: column;
    }
    
    .tips-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 14px;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero-content {
        padding: 0 var(--spacing-md);
    }
    
    .hero-text {
        padding: 0 var(--spacing-sm);
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .quiz-options {
        grid-template-columns: 1fr;
    }
}

/* =============================================
   MODAL STYLES
   ============================================= */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.modal-dialog {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.modal-dialog.modal-lg {
    max-width: 900px;
}

.modal-dialog.modal-xl {
    max-width: 1200px;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.1);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-2xl);
}

.modal-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.modal-subtitle {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.modal-icon {
    font-size: 4rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

/* CTA Card Styles */
.cta-section {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    padding: var(--spacing-3xl) 0;
}

.cta-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl);
    text-align: center;
    box-shadow: var(--shadow-2xl);
}

.cta-card .section-title {
    margin-bottom: var(--spacing-md);
}

.cta-card .section-subtitle {
    margin-bottom: var(--spacing-xl);
}

/* Responsive modal */
@media (max-width: 768px) {
    .modal-dialog {
        width: 95%;
        max-height: 95vh;
    }
    
    .modal-body {
        padding: var(--spacing-xl);
    }
    
    .modal-dialog.modal-lg,
    .modal-dialog.modal-xl {
        max-width: 95%;
    }
}

/* =============================================
   CLICKABLE PROCESS IMAGES
   ============================================= */
.clickable-image {
    position: relative;
    cursor: pointer;
    overflow: hidden;
}

.clickable-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s ease;
}

.clickable-image:hover::after {
    background: rgba(0, 0, 0, 0.3);
}

.image-zoom-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2;
    pointer-events: none;
}

.clickable-image:hover .image-zoom-icon {
    opacity: 1;
}

/* =============================================
   LIGHTBOX MODAL
   ============================================= */
.lightbox-modal {
    background: rgba(0, 0, 0, 0.95);
}

.lightbox-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 80px;
    z-index: 1;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    text-align: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    color: white;
    font-size: 1.25rem;
    margin-top: var(--spacing-lg);
    text-align: center;
}

.lightbox-counter {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 1rem;
    background: rgba(0, 0, 0, 0.5);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 3rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

.lightbox-modal .modal-close {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.lightbox-modal .modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Responsive lightbox */
@media (max-width: 768px) {
    .lightbox-container {
        padding: 60px 20px;
    }
    
    .lightbox-nav {
        width: 50px;
        height: 50px;
        font-size: 2rem;
    }
    
    .lightbox-prev {
        left: 1rem;
    }
    
    .lightbox-next {
        right: 1rem;
    }
}