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

:root {
    /* Modern Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(45deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(45deg, #43e97b 0%, #38f9d7 100%);
    
    /* Colors */
    --white: #ffffff;
    --white-alpha-90: rgba(255, 255, 255, 0.9);
    --white-alpha-80: rgba(255, 255, 255, 0.8);
    --white-alpha-70: rgba(255, 255, 255, 0.7);
    --white-alpha-20: rgba(255, 255, 255, 0.2);
    --white-alpha-10: rgba(255, 255, 255, 0.1);
    --black-alpha-30: rgba(0, 0, 0, 0.3);
    --black-alpha-20: rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-primary: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Performance Optimizations */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: #333;
    background: var(--primary-gradient);
    min-height: 100vh;
    overflow-x: hidden;
    font-display: swap;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Header */
header {
    padding: var(--space-lg) 0;
    text-align: center;
    position: relative;
    z-index: 10;
}

.logo {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: var(--font-weight-bold);
    color: var(--white);
    text-shadow: 2px 2px 4px var(--black-alpha-30);
    margin-bottom: var(--space-xs);
    animation: fadeInDown 1s ease-out;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--white-alpha-90);
    font-weight: var(--font-weight-light);
    animation: fadeInUp 1s ease-out 0.3s both;
    letter-spacing: 0.02em;
}

/* Main Content */
main {
    padding: var(--space-2xl) 0;
    position: relative;
}

.hero {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--white);
    margin-bottom: var(--space-sm);
    animation: fadeInUp 1s ease-out 0.6s both;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--white-alpha-90);
    max-width: 600px;
    margin: 0 auto var(--space-lg);
    animation: fadeInUp 1s ease-out 0.9s both;
    font-weight: var(--font-weight-normal);
    line-height: 1.7;
}

/* Game Features Grid */
.game-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.feature-card {
    background: var(--white-alpha-10);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    border: 1px solid var(--white-alpha-20);
    transition: all var(--transition-normal);
    animation: fadeInUp 1s ease-out both;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.feature-card:hover::before {
    opacity: 0.1;
}

.feature-card:nth-child(1) { animation-delay: 1.2s; }
.feature-card:nth-child(2) { animation-delay: 1.4s; }
.feature-card:nth-child(3) { animation-delay: 1.6s; }
.feature-card:nth-child(4) { animation-delay: 1.8s; }

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-2xl);
    border-color: var(--white-alpha-20);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-sm);
    display: block;
    filter: drop-shadow(0 4px 8px var(--black-alpha-20));
    transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: var(--space-sm);
    font-weight: var(--font-weight-semibold);
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--white-alpha-80);
    font-size: 1rem;
    line-height: 1.6;
    font-weight: var(--font-weight-normal);
}

/* Coming Soon Section */
.coming-soon {
    text-align: center;
    padding: var(--space-xl);
    background: var(--white-alpha-10);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    border: 1px solid var(--white-alpha-20);
    animation: fadeInUp 1s ease-out 2s both;
    position: relative;
    overflow: hidden;
}

.coming-soon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--white-alpha-10), transparent);
    animation: rotate 4s linear infinite;
    z-index: -1;
}

.coming-soon h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--white);
    margin-bottom: var(--space-sm);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}

.coming-soon p {
    color: var(--white-alpha-90);
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: var(--space-lg);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
}

.notify-btn {
    display: inline-block;
    background: var(--secondary-gradient);
    color: var(--white);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
    box-shadow: 0 8px 32px rgba(240, 147, 251, 0.4);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.notify-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left var(--transition-slow);
}

.notify-btn:hover::before {
    left: 100%;
}

.notify-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(240, 147, 251, 0.6);
    border-color: var(--white-alpha-20);
}

.notify-btn:active {
    transform: translateY(-1px);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--space-lg) 0;
    color: var(--white-alpha-70);
    font-size: 0.95rem;
    font-weight: var(--font-weight-normal);
}

/* Floating Elements */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.floating-element {
    position: absolute;
    background: var(--white-alpha-10);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--white-alpha-20);
}

.floating-element:nth-child(1) {
    width: 60px;
    height: 60px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 6s;
}

.floating-element:nth-child(2) {
    width: 100px;
    height: 100px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
    animation-duration: 8s;
}

.floating-element:nth-child(3) {
    width: 80px;
    height: 80px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
    animation-duration: 7s;
}

.floating-element:nth-child(4) {
    width: 40px;
    height: 40px;
    top: 30%;
    right: 30%;
    animation-delay: 1s;
    animation-duration: 5s;
}

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

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

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(120deg);
    }
    66% {
        transform: translateY(-10px) rotate(240deg);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Loading Animation */
.loading-shimmer {
    background: linear-gradient(90deg, 
        var(--white-alpha-10) 25%, 
        var(--white-alpha-20) 50%, 
        var(--white-alpha-10) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-sm);
    }
    
    .game-features {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .feature-card {
        padding: var(--space-lg);
    }
    
    .coming-soon {
        padding: var(--space-lg) var(--space-sm);
    }
    
    .floating-element {
        display: none; /* Hide on mobile for better performance */
    }
}

@media (max-width: 480px) {
    .notify-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 1rem;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --white-alpha-90: rgba(255, 255, 255, 1);
        --white-alpha-80: rgba(255, 255, 255, 0.9);
        --white-alpha-70: rgba(255, 255, 255, 0.8);
    }
}

/* Print styles */
@media print {
    .floating-elements,
    .notify-btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
}