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

/* Image Optimization */
img {
    max-width: 100%;
    height: auto;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    backface-visibility: hidden;
    transform: translateZ(0);
    will-change: transform;
}

/* Progressive Image Loading */
.image-placeholder {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

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

/* Lazy Loading Styles */
.lazy-image {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.lazy-image.loaded {
    opacity: 1;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: linear-gradient(45deg, #1e3c72, #2a5298, #1e3c72);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 60%;
    right: 15%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.8;
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header and Navigation */
.header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-image {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.logo h1 {
    color: #fff;
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #ffd700;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ffd700;
    transition: width 0.3s ease;
}

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

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-login {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-login:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.btn-register {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
}

.btn-register:hover {
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
    position: relative;
    z-index: 1;
}

/* Hero Section */
.hero-section {
    position: relative;
    text-align: center;
    padding: 4rem 0;
    margin: 2rem 0;
    border-radius: 15px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 60, 114, 0.7);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    text-align: left;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-main-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s ease;
}

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

.hero-section h2 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-section p {
    font-size: 1.2rem;
    color: #e0e0e0;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.2s both;
}

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

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: #fff;
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #ee5a24 0%, #ff6b6b 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, #4ecdc4 0%, #44a08d 100%);
    color: #fff;
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #44a08d 0%, #4ecdc4 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Features Section */
.features-section {
    padding: 4rem 0;
    margin: 2rem 0;
}

.features-section h3 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.feature-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    padding: 1rem;
    box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 215, 0, 0.5);
}

.feature-card h4 {
    color: #ffd700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.feature-card p {
    color: #e0e0e0;
    line-height: 1.7;
}

/* About Section */
.about-section {
    padding: 4rem 0;
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-section h3 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text {
    text-align: left;
}

.about-text h3 {
    text-align: left;
    margin-bottom: 2rem;
}

.about-text p {
    color: #e0e0e0;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    text-align: left;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-main-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

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

/* Registration Steps */
.registration-steps {
    padding: 4rem 0;
    margin: 2rem 0;
}

.registration-steps h3 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 215, 0, 0.5);
}

.step-number {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #333;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.step-content h4 {
    color: #ffd700;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.step-content p {
    color: #e0e0e0;
    line-height: 1.7;
    font-size: 1.05rem;
}

/* Gaming Categories */
.gaming-categories {
    padding: 4rem 0;
    margin: 2rem 0;
}

.gaming-categories h3 {
    text-align: center;
    font-size: 2.5rem;
    color: #fff;
    margin-bottom: 3rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.category-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.category-image {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.category-main-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

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

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.category-card:hover::before {
    transform: translateX(100%);
}

.category-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 215, 0, 0.5);
}

.category-card h4 {
    color: #ffd700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.category-card p {
    color: #e0e0e0;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.footer-logo-image {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.footer-section h4 {
    color: #ffd700;
    font-size: 1.3rem;
    margin-bottom: 0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.footer-section p {
    color: #e0e0e0;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #e0e0e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffd700;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #e0e0e0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .auth-buttons {
        justify-content: center;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .hero-section h2 {
        font-size: 2rem;
    }
    
    .hero-section p {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .about-text {
        text-align: center;
    }
    
    .about-text h3 {
        text-align: center;
    }
    
    .about-text p {
        text-align: center;
    }
    
    .contact-hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .contact-hero-text {
        text-align: center;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
    
    .features-grid,
    .categories-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-section h2 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* Accessibility Improvements */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 1001;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
    }
    
    .nav-menu.active {
        display: flex;
    }
}

/* Performance Optimizations */
.lazy {
    opacity: 0;
    transition: opacity 0.3s;
}

.lazy.loaded {
    opacity: 1;
}

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

/* Focus Management */
*:focus {
    outline: 2px solid #ffd700;
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .feature-card,
    .step,
    .category-card {
        border: 2px solid #fff;
    }
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Keyboard Navigation Styles */
.keyboard-navigation *:focus {
    outline: 3px solid #ffd700;
    outline-offset: 2px;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 1rem;
    text-align: center;
    z-index: 10000;
    backdrop-filter: blur(10px);
}

.cookie-banner p {
    margin-bottom: 1rem;
}

.cookie-banner .btn {
    margin: 0 0.5rem;
}

/* Tooltip Styles */
.tooltip {
    position: absolute;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    z-index: 1000;
    display: none;
    pointer-events: none;
}

/* Contact Page Styles */
.contact-hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.contact-hero-text {
    text-align: left;
}

.contact-hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.contact-hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.contact-hero-img:hover {
    transform: scale(1.05);
}

.contact-method-icon {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    padding: 0.8rem;
    box-shadow: 0 3px 10px rgba(255, 215, 0, 0.3);
    transition: transform 0.3s ease;
}

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

/* 404 Error Page Styles */
.error-image {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.error-illustration {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.error-illustration:hover {
    transform: scale(1.05);
}

/* Error Styles */
.error {
    border-color: #ff6b6b !important;
    box-shadow: 0 0 0 2px rgba(255, 107, 107, 0.2) !important;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .background-animation {
        animation: none;
    }
    
    .floating-particles::before,
    .floating-particles::after {
        animation: none;
    }
}