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

:root {
    /* Color Palette */
    --primary-blue: #4ECDC4;
    --primary-orange: #FF6B6B;
    --primary-green: #96CEB4;
    --primary-purple: #A8E6CF;
    --primary-yellow: #FFEAA7;
    --primary-pink: #FF9FF3;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4ECDC4 0%, #44A08D 100%);
    --gradient-secondary: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    --gradient-tertiary: linear-gradient(135deg, #96CEB4 0%, #FFEAA7 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --black: #1A1A1A;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    --spacing-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.logo-image {
    width: 2rem;
    height: 2rem;
    object-fit: contain;
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-text {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--gray-900);
}

.nav-links {
    display: flex;
    gap: var(--spacing-8);
}

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: var(--gradient-secondary);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: var(--gradient-tertiary);
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.orb-3 {
    width: 150px;
    height: 150px;
    background: var(--gradient-primary);
    bottom: 20%;
    left: 60%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.hero-text {
    color: var(--white);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    margin-bottom: var(--spacing-4);
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    color: var(--white);
    opacity: 0.9;
}

.hero-description {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-8);
    color: var(--white);
    opacity: 0.8;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    align-items: flex-start;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-4) var(--spacing-8);
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-lg);
    transition: var(--transition-normal);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--white);
    color: var(--gray-900);
    box-shadow: var(--shadow-lg);
}

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

.btn-large {
    padding: var(--spacing-5) var(--spacing-10);
    font-size: var(--font-size-xl);
}

.btn-disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-disabled:hover {
    transform: none;
    box-shadow: var(--shadow-lg);
}

.app-store-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.hero-badge {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-text {
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Phone Mockup */
.phone-mockup {
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.phone-frame {
    width: 280px;
    height: 560px;
    background: var(--black);
    border-radius: 2rem;
    padding: 0.5rem;
    box-shadow: var(--shadow-2xl);
    transform: rotateY(-15deg) rotateX(5deg);
    transition: var(--transition-slow);
}

.phone-frame:hover {
    transform: rotateY(-10deg) rotateX(2deg);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 1.5rem;
    overflow: hidden;
    position: relative;
}



.phone-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 3px;
    border-radius: 1.5rem;
}

.game-menu {
    padding: var(--spacing-6);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.menu-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
}

.menu-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    margin: 0 auto var(--spacing-4);
    position: relative;
}

.menu-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2rem;
    height: 2rem;
    background: var(--white);
    border-radius: var(--radius-md);
    opacity: 0.9;
}

.menu-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--gray-900);
}

.game-modes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    width: 100%;
}

.mode-button {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-4);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
    cursor: pointer;
}

.mode-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mode-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
}

.classic .mode-icon {
    background: var(--gradient-primary);
}

.chrono .mode-icon {
    background: var(--gradient-secondary);
}

.find .mode-icon {
    background: var(--gradient-tertiary);
}

.mode-button span {
    font-weight: 600;
    color: var(--gray-800);
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: var(--spacing-32) 0;
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--gray-200);
}

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

.feature-icon {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-xl);
    margin: 0 auto var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: var(--transition-normal);
}

.feature-icon:hover {
    transform: scale(1.1);
    border-color: var(--primary-blue);
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.feature-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Technical Features */
.tech-features {
    padding: var(--spacing-32) 0;
    background: var(--white);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.tech-item {
    text-align: center;
    padding: var(--spacing-6);
}

.tech-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    margin: 0 auto var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: var(--transition-normal);
}

.tech-icon:hover {
    transform: scale(1.1);
    border-color: var(--primary-blue);
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.tech-item h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
}

.tech-item p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Screenshots Section */
.screenshots {
    padding: var(--spacing-32) 0;
    background: var(--gray-50);
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
}

.screenshot-item {
    text-align: center;
}

.screenshot-frame {
    width: 200px;
    height: 400px;
    background: var(--black);
    border-radius: 1.5rem;
    padding: 0.25rem;
    margin: 0 auto var(--spacing-4);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
    position: relative;
}

.screenshot-frame:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.screenshot-content {
    width: 100%;
    height: 100%;
    background: var(--white);
    border-radius: 1.25rem;
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    position: relative;
}



.screenshot-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 2px;
    border-radius: 1.25rem;
}

.game-header {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.color-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2);
    flex: 1;
}

.color-tile {
    border-radius: var(--radius-md);
    min-height: 2rem;
    box-shadow: var(--shadow-sm);
}

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

.find-tile {
    border-radius: var(--radius-sm);
    min-height: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.target-color {
    height: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-2);
}

.find-instruction {
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
    margin-top: var(--spacing-2);
}

.screenshot-caption {
    font-weight: 600;
    color: var(--gray-700);
}

/* Technical Highlights */
.technical {
    padding: var(--spacing-32) 0;
    background: var(--white);
}

.tech-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-6);
}

.highlight-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    margin: 0 auto var(--spacing-4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: var(--transition-normal);
}

.highlight-icon:hover {
    transform: scale(1.1);
    border-color: var(--primary-blue);
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.highlight-item h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-3);
}

.highlight-item p {
    color: var(--gray-600);
    line-height: 1.6;
}

/* Call to Action */
.cta {
    padding: var(--spacing-32) 0;
    background: var(--gradient-hero);
    color: var(--white);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-4);
}

.cta-description {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-8);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-6);
}

.social-buttons {
    display: flex;
    gap: var(--spacing-4);
}

.social-btn {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-16);
    margin-bottom: var(--spacing-8);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-image {
    filter: brightness(1.1);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-8);
}

.footer-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--white);
}

.footer-section p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-2);
}

.footer-link {
    display: block;
    color: var(--gray-400);
    text-decoration: none;
    margin-bottom: var(--spacing-2);
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: var(--spacing-8);
    text-align: center;
    color: var(--gray-400);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-5);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
        text-align: center;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-2xl);
    }
    
    .phone-frame {
        width: 240px;
        height: 480px;
    }
    
    .features-grid,
    .tech-grid,
    .tech-highlights {
        grid-template-columns: 1fr;
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-4);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .social-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .phone-frame {
        width: 200px;
        height: 400px;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-4);
    }
    
    .btn {
        padding: var(--spacing-3) var(--spacing-6);
        font-size: var(--font-size-base);
    }
    
    .btn-large {
        padding: var(--spacing-4) var(--spacing-8);
        font-size: var(--font-size-lg);
    }
}

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

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Color palette decorative elements */
.color-palette {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 8s ease-in-out infinite;
}

.palette-1 {
    background: var(--primary-blue);
    top: 20%;
    left: 5%;
    animation-delay: 0s;
}

.palette-2 {
    background: var(--primary-orange);
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.palette-3 {
    background: var(--primary-green);
    bottom: 30%;
    left: 15%;
    animation-delay: 4s;
}