/* 12. Responsive Design ========================= */
/* Media queries for tablet and mobile layouts. Adjusts grid, font sizes, and spacing. */
@media (max-width: 768px) {
    /* Header styles are now handled in header.css */

    /* Body padding is now handled dynamically by JavaScript */

    /* Mobile hero adjustments to eliminate gaps */
    .hero {
        padding: clamp(2rem, 6vh, 4rem) 0;
        /* Reduced top/bottom padding on mobile */
        margin-top: 0;
        /* Ensure no top margin */
    }

    .hero h2 {
        font-size: 2rem;
        /* Smaller headline for mobile */
    }

    .hero p {
        font-size: 1rem;
        /* Smaller paragraph for mobile */
    }

    .about-content {
        grid-template-columns: 1fr;
        /* Single column on mobile */
    }

    .contact-content {
        grid-template-columns: 1fr;
        /* Single column on mobile */
    }

    .features-grid {
        grid-template-columns: 1fr;
        /* Single column for features */
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
        /* Two columns for better space utilization */
    }

    .language-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
        /* Three columns for better space utilization */
    }

    .service-item {
        padding: var(--spacing-md);
        /* Reduced padding for mobile */
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        gap: var(--spacing-md);
    }

    .service-item i {
        font-size: 1.5rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .services-grid .service-item h3 {
        font-size: 1rem;
        margin-bottom: 0;
        text-align: center;
    }

    .language-item {
        padding: var(--spacing-sm);
        /* Reduced padding for mobile */
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }

    .language-grid .language-item i {
        font-size: 1.2rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .language-item h4 {
        font-size: 0.9rem;
        margin-bottom: 0;
        text-align: center;
    }

    /* Add quick contact button for mobile */
    .quick-contact-mobile {
        position: fixed;
        bottom: 20px;
        right: 20px;
        background: var(--accent-color);
        color: white;
        padding: var(--spacing-md);
        border-radius: 50%;
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        display: flex;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        transition: all var(--transition-normal), outline 0.2s ease, box-shadow 0.3s ease;
        width: 60px;
        height: 60px;
        /* Prevent iOS touch highlighting */
        -webkit-tap-highlight-color: transparent;
        /* Improve touch target */
        touch-action: manipulation;
    }

    .quick-contact-mobile:hover {
        background: var(--accent-dark);
        transform: scale(1.1);
        color: white;
    }

    .quick-contact-mobile i {
        font-size: 1.5rem;
    }

    /* Medium mobile screens (480px - 768px) */
    @media (max-width: 600px) {
        .services-grid {
            grid-template-columns: repeat(2, 1fr);
            /* Two columns for medium mobile */
        }

        .language-grid {
            grid-template-columns: repeat(3, 1fr);
            /* Three columns for medium mobile */
        }
    }

    .container {
        padding: 0 15px;
        /* Less padding on mobile */
    }

    /* Heading sizes are now handled by the main CSS files */
    /* Removed conflicting h1, h2 rules that were overriding section titles */

    .hero {
        padding: 4rem 0;
    }

    .why-choose-us,
    .services,
    .about,
    .contact {
        padding: 2rem 0;
        /* Reduced padding for mobile */
    }

    /* Reduce spacing between sections */
    .language-services {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    /* Body padding is now handled dynamically by JavaScript */

    /* Very small mobile hero adjustments */
    .hero {
        padding: clamp(1.5rem, 5vh, 3rem) 0;
        /* Minimal padding for very small screens */
        margin-top: 0;
        /* Ensure no top margin */
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
        /* Two columns for very small screens */
    }

    .language-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xs);
        /* Two columns for very small screens */
    }

    .service-item {
        padding: var(--spacing-sm);
        /* Even smaller padding for very small screens */
        gap: var(--spacing-sm);
    }

    .language-item {
        padding: var(--spacing-xs);
        /* Even smaller padding for very small screens */
        gap: var(--spacing-xs);
    }

    .service-item i {
        font-size: 1.2rem;
        /* Smaller icons for mobile */
    }

    .language-grid .language-item i {
        font-size: 1rem;
        /* Smaller icons for mobile */
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    /* Additional mobile optimizations */
    .services-grid .service-item h3,
    .language-grid .language-item h4,
    .service-item h3 {
        font-size: 0.9rem;
        /* Smaller text for mobile */
    }

    /* Ensure service item paragraphs are smaller than headings on mobile */
    .service-item p {
        font-size: 0.8rem;
        /* Even smaller than headings for proper hierarchy */
    }

    /* Improve spacing for mobile */
    .services {
        padding: var(--spacing-lg) 0;
    }

    .language-services {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }

    /* Smaller quick contact button for very small screens */
    .quick-contact-mobile {
        width: 50px;
        height: 50px;
        bottom: 15px;
        right: 15px;
    }

    .quick-contact-mobile i {
        font-size: 1.2rem;
    }
}

/* Body padding is now handled dynamically by JavaScript */

/* Hide quick contact button on desktop */
@media (min-width: 769px) {
    .quick-contact-mobile {
        display: none;
    }
}

/* 13. Smooth Scrolling ========================= */
html {
    scroll-behavior: smooth;
}

/* 14. Focus Styles for Accessibility ========================= */
button:focus,
input:focus,
textarea:focus,
a:focus {
    outline: 2px solid #2d3748;
    outline-offset: 2px;
}

/* Enhanced focus styles for quick contact button */
.quick-contact-mobile:focus {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.3);
}

.quick-contact-mobile:focus:not(:focus-visible) {
    outline: none;
    box-shadow: none;
}

.quick-contact-mobile:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 3px;
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.3);
}

/* Force remove focus state after click/touch */
.quick-contact-mobile:active {
    outline: none;
}

.quick-contact-mobile.no-focus {
    outline: none;
    box-shadow: var(--shadow-lg);
}

/* 15. Loading Animation ========================= */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
        /* Start below and invisible */
    }

    to {
        opacity: 1;
        transform: translateY(0);
        /* End at normal position and visible */
    }
}

.feature-card,
.service-item,
.stat-item {
    animation: fadeInUp 0.6s ease-out;
    /* Animates element on scroll */
}

/* 16. Hover Effects ========================= */
.service-item:hover i {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}

.service-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 25px rgba(74, 85, 104, 0.15);
}

/* 17. Header Scrolled State ========================= */
.header.scrolled {
    background: rgba(45, 55, 72, 0.95);
    backdrop-filter: blur(10px);
}

/* 18. JavaScript-based Show/Hide Functionality ========================= */
/* Hide items that are collapsed by JavaScript */
.js-hidden {
    display: none;
}

/* Ensure items are visible when not hidden by JavaScript */
.service-item:not(.js-hidden),
.language-item:not(.js-hidden) {
    display: block;
}

/* Ensure hidden class takes precedence over js-hidden for regional filtering */
.language-item.hidden {
    display: none;
}