/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007AFF;
    --secondary-color: #5856D6;
    --accent-color: #FF6B6B;
    --text-dark: #1C1C1E;
    --text-light: #8E8E93;
    --bg-light: #F2F2F7;
    --bg-white: #FFFFFF;
    --border-color: #E5E5EA;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.logo-icon-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

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

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

/* App Store Badges */
.app-store-badge,
.app-store-badge-large,
.nav-app-store-badge {
    display: inline-block;
}

.app-store-img {
    height: 70px;
    width: auto;
}

.app-store-img-large {
    height: 70px;
    width: auto;
}

.app-store-img-nav {
    height: 40px;
    width: auto;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="40" height="40" xmlns="http://www.w3.org/2000/svg"><rect width="40" height="40" fill="rgba(255,255,255,0.05)"/><rect width="20" height="20" fill="rgba(255,255,255,0.03)"/></svg>');
    opacity: 0.3;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 32px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: flex-start;
}

.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.badge:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.badge svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.phone-mockup {
    background: #1C1C1E;
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
}

.phone-mockup:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.phone-showcase {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: floatPhone 3s ease-in-out infinite;
}

.iphone-mockup {
    max-width: 350px;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}

.iphone-mockup:hover {
    transform: scale(1.05);
}

.phone-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes floatPhone {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.app-icon-showcase {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: floatIcon 3s ease-in-out infinite;
}

.app-icon-large {
    width: 300px;
    height: 300px;
    border-radius: 60px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
    transition: transform 0.3s ease;
}

.app-icon-large:hover {
    transform: scale(1.05);
}

.icon-glow {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.pixel-canvas-demo {
    background: white;
    border-radius: 20px;
    padding: 40px;
    aspect-ratio: 9/16;
    display: flex;
    align-items: center;
    justify-content: center;
}

.demo-grid {
    width: 200px;
    height: 200px;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    gap: 2px;
    animation: pixelPulse 3s ease-in-out infinite;
}

@keyframes pixelPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Generate colored grid cells */
.demo-grid::before {
    content: '';
    display: block;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-light);
    border-radius: 20px;
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 24px;
}

.about-text p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.stat {
    text-align: center;
    padding: 24px;
    background: white;
    border-radius: 16px;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

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

.pixel-art-showcase {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.showcase-grid {
    width: 100%;
    aspect-ratio: 1;
    background: 
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px),
        linear-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 40px 40px;
    border-radius: 12px;
}

/* Why Section */
.why-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #FFF5E1 0%, #FFE4E1 100%);
    position: relative;
    overflow: hidden;
}

.why-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.why-section::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(78, 205, 196, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.why-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.why-text h2 {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.why-text p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.why-signature {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid rgba(0, 0, 0, 0.1);
}

.why-signature p {
    font-size: 16px;
    font-style: italic;
    color: var(--text-dark);
    font-weight: 600;
}

.why-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.child-drawing-image {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.child-drawing-image:hover {
    transform: scale(1.02);
}

.why-card {
    background: white;
    padding: 28px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.why-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.why-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.why-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Support Section */
.support {
    padding: 100px 0;
    background: var(--bg-white);
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.support-card {
    text-align: center;
    padding: 40px;
    background: var(--bg-light);
    border-radius: 20px;
    transition: all 0.3s ease;
}

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

.support-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.support-card p {
    color: var(--text-light);
    font-size: 16px;
}

.support-note {
    text-align: center;
    color: var(--text-light);
    margin-top: 40px;
    font-size: 16px;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.contact-card {
    padding: 32px;
    background: var(--bg-white);
    border-radius: 16px;
    transition: all 0.3s ease;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-card p {
    color: var(--text-light);
    font-size: 16px;
    line-height: 1.6;
}

.contact-form-container {
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-white);
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    padding: 20px 40px;
    margin-bottom: 16px;
}

.contact-button svg {
    flex-shrink: 0;
}

.contact-note {
    color: var(--text-light);
    font-size: 14px;
    margin-top: 12px;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

.download-content p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.download-requirements {
    margin-top: 24px;
    font-size: 14px;
    opacity: 0.7;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 60px 0 30px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
}

.footer-links {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-bottom: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-badges {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .phone-mockup {
        max-width: 300px;
        margin: 0 auto;
        transform: none;
    }
    
    .phone-showcase {
        margin: 0 auto;
    }
    
    .iphone-mockup {
        max-width: 250px;
    }
    
    .phone-glow {
        width: 300px;
        height: 300px;
    }
    
    .app-icon-showcase {
        margin: 0 auto;
    }
    
    .app-icon-large {
        width: 200px;
        height: 200px;
        border-radius: 40px;
    }
    
    .icon-glow {
        width: 250px;
        height: 250px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .why-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        gap: 16px;
    }
    
    .section-title {
        font-size: 36px;
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-badges {
        justify-content: center;
        gap: 8px;
    }
    
    .badge {
        font-size: 13px;
        padding: 10px 16px;
    }
    
    .badge svg {
        width: 18px;
        height: 18px;
    }
    
    .features,
    .about,
    .support,
    .contact,
    .download {
        padding: 60px 0;
    }
    
    .app-store-img {
        height: 60px;
    }
    
    .app-store-img-large {
        height: 60px;
    }
    
    .app-store-img-nav {
        height: 36px;
    }
    
    .nav-links a:not(.btn):not(.nav-app-store-badge) {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .support-options {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 40px 24px;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 16px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.feature-card,
.support-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection color */
::selection {
    background: var(--primary-color);
    color: white;
}