/* Spin 777 - Modern Gaming Platform Styles */
/* Optimized for performance and accessibility */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #f59e0b;
    --secondary-color: #1f2937;
    --accent-color: #111827;
    --text-light: #ffffff;
    --text-dark: #1f2937;
    --text-muted: #6b7280;
    --gradient-bg: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-primary: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-secondary: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    --gradient-hero: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #fbbf24 100%);
    min-height: 100vh;
}

/* Header and Navigation */
.header {
    background: var(--gradient-hero);
    color: var(--text-light);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-light);
    background: linear-gradient(45deg, #ffffff, #f0f9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-menu a::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;
}

.nav-menu a:hover::before {
    left: 100%;
}

.nav-menu a:hover,
.nav-menu a:focus {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Breadcrumb Navigation */
.breadcrumb {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 1rem 1.5rem;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1rem;
    position: relative;
}

/* Hero Section */
.hero {
    background: var(--gradient-hero);
    color: var(--text-light);
    padding: 4rem 2rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 2rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(45deg, #ffffff, #f0f9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

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

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* Registration Content Layout */
.registration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
    margin-top: 2rem;
}

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

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

.registration-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.registration-image img:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    background: linear-gradient(45deg, #ffffff, #f0f9ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 3rem 0;
    position: relative;
    z-index: 1;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: var(--text-light);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.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:hover,
.btn:focus {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gradient-secondary);
    border: 2px solid var(--accent-color);
    color: var(--text-light);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(31, 41, 55, 0.3);
}

/* Content Sections */
.content-section {
    background: rgba(255, 255, 255, 0.9);
    padding: 3rem;
    margin-bottom: 3rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.content-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.content-section h2 {
    color: var(--secondary-color);
    margin-bottom: 2rem;
    font-size: 2.2rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 1rem;
}

.content-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.content-section h3 {
    color: var(--accent-color);
    margin: 2rem 0 1.5rem 0;
    font-size: 1.6rem;
    font-weight: 600;
}

.content-section p {
    margin-bottom: 1.5rem;
    text-align: justify;
    color: var(--text-muted);
    line-height: 1.8;
    font-size: 1.1rem;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin: 3rem 0;
}

.feature-card {
    background: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.95);
}

.feature-card h3 {
    margin: 1.5rem 0 1rem 0;
    color: var(--secondary-color);
    font-size: 1.4rem;
    font-weight: 600;
    flex-shrink: 0;
}

.feature-card p {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.7;
    font-size: 1rem;
    flex-grow: 1;
    display: flex;
    align-items: center;
}

.feature-icon {
    font-size: 4rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* FAQ Section */
.faq-item {
    margin-bottom: 1.5rem;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.faq-question {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    width: 100%;
    text-align: left;
    transition: var(--transition);
    font-size: 1.1rem;
    color: var(--secondary-color);
    position: relative;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-question:hover {
    background: linear-gradient(135deg, #fde68a 0%, #fbbf24 100%);
}

.faq-question[aria-expanded="true"]::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-answer {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-answer.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
.footer {
    background: var(--gradient-secondary);
    color: var(--text-light);
    padding: 3rem 0;
    margin-top: 4rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="footerGrain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="80" cy="80" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="40" cy="60" r="0.3" fill="rgba(255,255,255,0.03)"/><circle cx="60" cy="40" r="0.3" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(%23footerGrain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Additional Modern Styles */
.contact-info {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    margin: 2rem 0;
}

.contact-info h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

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

/* Loading animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 2s infinite;
}

/* Hover effects for better interactivity */
.content-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        width: 100%;
        margin-top: 1rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
    
    .content-section {
        padding: 2rem 1.5rem;
    }
    
    .hero {
        padding: 3rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-text {
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .registration-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .registration-text {
        text-align: center;
    }
}

/* Accessibility Improvements */
.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;
}

/* Focus indicators */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 8px;
    text-decoration: none;
    z-index: 1001;
}

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

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Image optimization */
img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

/* 16:9 Aspect Ratio Images */
.aspect-16-9 {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio (9/16 = 0.5625) */
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.aspect-16-9:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.aspect-16-9 img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
}

.aspect-16-9 svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Feature images with 16:9 ratio */
.feature-image {
    width: 100%;
    max-width: 400px;
    margin: 0 auto 2rem auto;
}

.feature-image .aspect-16-9 {
    margin-bottom: 1.5rem;
}

/* Responsive adjustments for 16:9 images */
@media (max-width: 768px) {
    .aspect-16-9 {
        margin: 1rem 0;
    }
    
    .feature-image {
        max-width: 100%;
        margin: 0 auto 1.5rem auto;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .cta-buttons {
        display: none;
    }
    
    .main-content {
        max-width: none;
        padding: 0;
    }
}