/**
 * VN88 Theme Stylesheet
 *
 * @package VN88_Theme
 */

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* Header */
.site-header {
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    padding: 15px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.primary-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.primary-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s;
    padding: 8px 0;
}

.primary-menu a:hover {
    color: #ffd700;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-login {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-login:hover {
    background: #fff;
    color: #1a237e;
}

.btn-register {
    background: #ffa000;
    color: #fff;
}

.btn-register:hover {
    background: #ff8f00;
}

.btn-primary {
    background: #ffa000;
    color: #fff;
    padding: 14px 32px;
    font-size: 16px;
}

.btn-primary:hover {
    background: #ff8f00;
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    padding: 14px 32px;
    font-size: 16px;
}

.btn-secondary:hover {
    background: #fff;
    color: #1a237e;
}

/* Mobile Navigation */
.nav-mobile {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

.mobile-menu-wrapper {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #1a237e;
    padding: 20px;
}

.mobile-menu-wrapper.active {
    display: block;
}

.mobile-menu {
    list-style: none;
    padding: 0;
}

.mobile-menu li {
    margin-bottom: 15px;
}

.mobile-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    display: block;
    padding: 10px 0;
}

.mobile-actions {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-actions .btn {
    text-align: center;
}

/* Main Content */
.site-main {
    margin-top: 70px;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #1a237e 0%, #3949ab 50%, #1a237e 100%);
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-description {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, #1a237e 0%, #3949ab 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.page-description {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Content Sections */
.content-section,
.brand-overview,
.features-section,
.games-section,
.steps-section,
.guide-section,
.promo-section,
.faq-section,
.troubleshoot-section,
.tips-section,
.requirements-section,
.benefits-section,
.trust-section,
.contact-methods,
.support-categories,
.response-section {
    padding: 60px 0;
    background: #fff;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: #1a237e;
    margin-bottom: 30px;
    text-align: center;
}

.section-content p,
.overview-content p,
.trust-content p,
.response-content p,
.tips-content p,
.promo-detail p,
.guide-content p {
    font-size: 16px;
    color: #555;
    margin-bottom: 15px;
    line-height: 1.8;
}

/* Grid Layouts */
.features-grid,
.games-grid,
.benefits-grid,
.events-grid,
.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card,
.game-card,
.benefit-card,
.event-card,
.method-card {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    border-left: 4px solid #ffa000;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover,
.game-card:hover,
.benefit-card:hover,
.event-card:hover,
.method-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.feature-card h3,
.game-card h3,
.benefit-card h3,
.event-card h3,
.method-card h3 {
    font-size: 20px;
    color: #1a237e;
    margin-bottom: 15px;
}

.feature-card p,
.game-card p,
.benefit-card p,
.event-card p,
.method-card p {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

/* Lists */
.steps-list,
.faq-list,
.troubleshoot-list,
.requirements-list,
.categories-list,
.tips-list {
    max-width: 900px;
    margin: 40px auto 0;
}

.step-item,
.faq-item,
.troubleshoot-item,
.requirement-item,
.category-item,
.tip-item {
    background: #f8f9fa;
    padding: 25px 30px;
    margin-bottom: 20px;
    border-radius: 8px;
    border-left: 4px solid #3949ab;
}

.step-item h3,
.faq-item h3,
.troubleshoot-item h3,
.requirement-item h3,
.category-item h3,
.tip-item h3 {
    font-size: 18px;
    color: #1a237e;
    margin-bottom: 12px;
}

.step-item p,
.faq-item p,
.troubleshoot-item p,
.requirement-item p,
.category-item p,
.tip-item p {
    font-size: 15px;
    color: #555;
    line-height: 1.7;
}

/* Promo Section */
.promo-section.alt,
.guide-section.alt {
    background: #f5f7fa;
}

.promo-content {
    max-width: 900px;
    margin: 0 auto;
}

.promo-detail h3,
.guide-content h3 {
    font-size: 22px;
    color: #1a237e;
    margin: 30px 0 15px;
}

.promo-steps {
    margin-top: 30px;
}

.promo-steps h3 {
    font-size: 20px;
    color: #1a237e;
    margin-bottom: 15px;
}

.promo-steps ul {
    list-style: none;
    padding-left: 0;
}

.promo-steps li {
    padding: 10px 0 10px 30px;
    position: relative;
    font-size: 15px;
    color: #555;
}

.promo-steps li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4caf50;
    font-weight: bold;
}

/* Terms Section */
.terms-section {
    background: #fff3e0;
    padding: 60px 0;
}

.terms-content p {
    font-size: 15px;
    color: #555;
    margin-bottom: 15px;
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #1a237e 0%, #3949ab 100%);
    padding: 80px 0;
    text-align: center;
    color: #fff;
}

.cta-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 16px;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Footer */
.site-footer {
    background: #1a237e;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #ffa000;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.9;
}

.footer-nav h4,
.footer-contact h4 {
    font-size: 16px;
    margin-bottom: 15px;
    color: #ffa000;
}

.footer-menu {
    list-style: none;
}

.footer-menu li {
    margin-bottom: 10px;
}

.footer-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.footer-menu a:hover {
    opacity: 1;
    color: #ffa000;
}

.footer-contact p {
    font-size: 14px;
    margin-bottom: 8px;
    opacity: 0.9;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
}

.copyright {
    text-align: center;
    font-size: 14px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.seo-text {
    text-align: center;
    font-size: 13px;
    line-height: 1.8;
    opacity: 0.7;
    max-width: 900px;
    margin: 0 auto;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .nav-mobile {
        display: block;
    }
    
    .menu-toggle {
        display: flex;
        margin-left: auto;
    }
    
    .hero-title {
        font-size: 26px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .hero-actions,
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 22px;
    }
    
    .features-grid,
    .games-grid,
    .benefits-grid,
    .events-grid,
    .methods-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .site-main {
        margin-top: 60px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .page-hero {
        padding: 50px 0;
    }
    
    .content-section,
    .brand-overview,
    .features-section,
    .games-section,
    .steps-section,
    .guide-section,
    .promo-section,
    .faq-section,
    .troubleshoot-section,
    .tips-section,
    .requirements-section,
    .benefits-section,
    .trust-section,
    .contact-methods,
    .support-categories,
    .response-section {
        padding: 40px 0;
    }
    
    .cta-section {
        padding: 50px 0;
    }
    
    .cta-title {
        font-size: 22px;
    }
}

/* Image Styles */
.overview-image,
.content-image,
.feature-image,
.game-image {
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.overview-image img,
.content-image img,
.feature-image img,
.game-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.overview-image:hover img,
.content-image:hover img,
.feature-image:hover img,
.game-image:hover img {
    transform: scale(1.05);
}

.overview-wrapper,
.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: center;
}

@media (max-width: 768px) {
    .overview-wrapper,
    .content-wrapper {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .overview-image,
    .content-image {
        margin-bottom: 15px;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-40 {
    margin-top: 40px;
}