/* ============================================================================
   Mobile Responsive Fixes for RUSVPN Website
   ============================================================================ */

/* Prevent horizontal scroll */
html {
    overflow-x: hidden;
    width: 100%;
}

body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

/* Ensure all images are responsive */
img {
    max-width: 100%;
    height: auto;
}

/* Fix container overflow */
.container {
    width: 100%;
    max-width: var(--container-width);
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
    overflow-x: hidden;
}

/* Mobile Header Fixes */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .logo img {
        height: 36px !important;
        max-height: 36px;
    }
    
    .header-auth {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }
    
    .header-auth .btn {
        flex: 1;
        max-width: 150px;
    }
    
    .language-switcher {
        order: 2;
    }
}

/* Mobile Hero Fixes */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0 40px;
    }
    
    .hero-title {
        font-size: 1.75rem;
        line-height: 1.2;
        padding: 0 1rem;
    }
    
    .lang-zh .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-cta {
        padding: 0 1rem;
        gap: 1rem;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Mobile Features Grid Fixes */
@media (max-width: 768px) {
    .features {
        padding: 40px 0 60px;
    }
    
    .section-title {
        font-size: 1.75rem;
        margin-bottom: 2rem;
        padding: 0 1rem;
        text-align: center !important;
    }
    
    .lang-zh .section-title {
        font-size: 1.6rem;
    }
    
    /* Horizontal scrolling carousel for features */
    .features-grid,
    .feature-grid {
        display: flex !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        /* Remove scroll-snap completely - it causes jitter on slow scroll */
        -webkit-overflow-scrolling: touch;
        gap: 1rem;
        padding: 0 1rem 1.5rem 1rem;
        margin: 0 -1rem;
        padding-left: 1rem;
        /* Smooth momentum scrolling */
        scroll-behavior: auto;
    }
    
    /* Hide scrollbar but keep functionality */
    .features-grid::-webkit-scrollbar,
    .feature-grid::-webkit-scrollbar {
        display: none;
    }
    
    .features-grid,
    .feature-grid {
        -ms-overflow-style: none;
        scrollbar-width: none;
    }
    
    /* Each card takes 75% of screen width (shows 2.5 cards) */
    .feature-block,
    .feature-card {
        flex: 0 0 75%;
        min-width: 75%;
        max-width: 75%;
        padding: 1.5rem;
        /* Disable hover effects on mobile to prevent jitter */
        pointer-events: auto;
        /* Prevent text selection during scroll */
        user-select: none;
        -webkit-user-select: none;
        /* Force static positioning */
        transform: none !important;
        transition: none !important;
        /* Prevent any layout shifts */
        contain: layout style paint;
    }
    
    /* Disable hover effects on mobile */
    .feature-block:hover,
    .feature-card:hover {
        transform: none !important;
        box-shadow: var(--shadow-md) !important;
    }
    
    /* Disable link hover effects on mobile */
    a.feature-link:hover .feature-icon {
        transform: none !important;
    }
    
    .feature-icon {
        font-size: 2.5rem;
        transition: none !important;
    }
    
    .feature-block h3,
    .feature-card h3 {
        font-size: 1.25rem;
        transition: none !important;
    }
    
    /* Add scroll indicator hint */
    .features::after {
        content: '';
        display: block;
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, 
            var(--primary) 0%, 
            var(--primary) 33%, 
            rgba(0, 217, 126, 0.3) 33%, 
            rgba(0, 217, 126, 0.3) 100%);
        margin-top: 1rem;
        border-radius: 2px;
    }
}

/* Mobile Feature Content Fixes */
@media (max-width: 768px) {
    .feature-hero {
        padding: 2rem 1rem;
        margin-bottom: 0;
    }
    
    .feature-hero .emoji {
        font-size: 3.5rem;
    }
    
    .feature-image {
        padding: 0 1rem;
        margin-bottom: 2rem;
    }
    
    .feature-content {
        padding: 1.5rem;
        margin: 1rem;
        border-radius: 8px;
    }
    
    .feature-content h1 {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
    
    .feature-content h2 {
        font-size: 1.5rem;
        margin-top: 2rem;
        margin-bottom: 1rem;
    }
    
    .feature-content h3 {
        font-size: 1.125rem;
        margin-top: 1.5rem;
    }
    
    .feature-content table {
        font-size: 0.875rem;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .feature-content th,
    .feature-content td {
        padding: 0.75rem 0.5rem;
    }
}

/* Mobile Steps/How It Works Fixes */
@media (max-width: 768px) {
    .how-it-works {
        padding: 60px 0;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .step h3 {
        font-size: 1.25rem;
    }
}

/* Mobile Statistics Fixes */
@media (max-width: 768px) {
    .statistics {
        padding: 60px 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Testimonials Fixes */
@media (max-width: 768px) {
    .testimonials {
        padding: 60px 0;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .testimonial {
        padding: 1.5rem;
    }
    
    .testimonial-quote {
        font-size: 1rem;
    }
}

/* Mobile FAQ Fixes */
@media (max-width: 768px) {
    .faq {
        padding: 60px 0;
    }
    
    .faq-list {
        padding: 0 1rem;
    }
    
    .faq-item {
        padding: 1.25rem;
    }
    
    .faq-question {
        font-size: 1.05rem;
    }
}

/* Mobile Final CTA Fixes */
@media (max-width: 768px) {
    .final-cta {
        padding: 60px 1rem;
    }
    
    .final-cta h2 {
        font-size: 1.75rem;
        margin-bottom: 1rem;
    }
    
    .lang-zh .final-cta h2 {
        font-size: 1.6rem;
    }
    
    .final-cta p {
        font-size: 1.05rem;
        margin-bottom: 2rem;
    }
    
    .cta-buttons {
        padding: 0 1rem;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Mobile Footer Fixes */
@media (max-width: 768px) {
    .site-footer {
        padding: 3rem 0 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }
    
    .footer-col {
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        padding: 1.5rem 1rem 0;
    }
}

/* Fix for very small screens */
@media (max-width: 360px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .lang-zh .hero-title {
        font-size: 1.4rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .lang-zh .section-title {
        font-size: 1.4rem;
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}

/* Ensure buttons don't overflow */
.btn {
    max-width: 100%;
    word-wrap: break-word;
}

/* Fix for long text in feature cards */
.feature-block h3,
.feature-card h3 {
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Prevent code blocks from overflowing */
pre, code {
    max-width: 100%;
    overflow-x: auto;
    word-wrap: break-word;
}

/* Fix for embedded content */
iframe, embed, object {
    max-width: 100%;
}