/* ========== CUSTOM STYLES ========== */
    
    /* Smooth Scrolling */
    html {
        scroll-behavior: smooth;
    }
    
    /* Custom Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #020617;
    }
    ::-webkit-scrollbar-thumb {
        background: #115e59;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #0d9488;
    }
    
    /* ========== NAVBAR ========== */
    #navbar {
        background: transparent;
        transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
    }
    
    #navbar.scrolled {
        background: rgba(2, 6, 23, 0.95);
        backdrop-filter: blur(20px);
        box-shadow: 0 1px 0 rgba(14, 165, 133, 0.1);
    }
    
    /* ========== HERO ========== */
    #hero {
        position: relative;
    }
    
    #hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(180deg, 
            rgba(2, 6, 23, 0.4) 0%, 
            rgba(2, 6, 23, 0.2) 40%, 
            rgba(2, 6, 23, 0.6) 80%, 
            rgba(2, 6, 23, 1) 100%
        );
        z-index: 1;
        pointer-events: none;
    }
    
    #hero > .relative {
        position: relative;
        z-index: 2;
    }
    
    /* ========== SERVICE CARDS ========== */
    .service-card {
        position: relative;
        overflow: hidden;
    }
    
    .service-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, transparent, #14b8a6, transparent);
        opacity: 0;
        transition: opacity 0.5s ease;
    }
    
    .service-card:hover::before {
        opacity: 1;
    }
    
    /* ========== GALLERY ========== */
    .gallery-item {
        cursor: pointer;
    }
    
    .gallery-item::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 12px;
        border: 1px solid transparent;
        transition: border-color 0.5s ease;
        pointer-events: none;
    }
    
    .gallery-item:hover::after {
        border-color: rgba(20, 184, 166, 0.4);
    }
    
    /* ========== TESTIMONIAL CARDS ========== */
    .testimonial-card {
        transition: transform 0.5s ease, box-shadow 0.5s ease;
    }
    
    .testimonial-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    }
    
    /* ========== MOBILE MENU ========== */
    #mobileMenu {
        transition: opacity 0.5s ease, visibility 0.5s ease;
    }
    
    #mobileMenu.active {
        opacity: 1;
        pointer-events: all;
    }
    
    #mobileMenu.inactive {
        opacity: 0;
        pointer-events: none;
    }
    
    .mobile-link {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
    }
    
    #mobileMenu.active .mobile-link {
        opacity: 1;
        transform: translateY(0);
    }
    
    #mobileMenu.active .mobile-link:nth-child(1) { transition-delay: 0.1s; }
    #mobileMenu.active .mobile-link:nth-child(2) { transition-delay: 0.15s; }
    #mobileMenu.active .mobile-link:nth-child(3) { transition-delay: 0.2s; }
    #mobileMenu.active .mobile-link:nth-child(4) { transition-delay: 0.25s; }
    #mobileMenu.active .mobile-link:nth-child(5) { transition-delay: 0.3s; }
    
    /* Menu animation */
    #menuBtn.active .menu-line:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }
    #menuBtn.active .menu-line:nth-child(2) {
        opacity: 0;
    }
    #menuBtn.active .menu-line:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
        width: 1.25rem;
    }
    
    /* ========== SCROLL REVEAL (progressive enhancement) ========== */
    @media (prefers-reduced-motion: no-preference) {
        .reveal {
            opacity: 1;
            transform: none;
        }
    }
    
    /* ========== SELECTION ========== */
    ::selection {
        background: rgba(20, 184, 166, 0.3);
        color: #f0fdfa;
    }
    
    /* ========== FOCUS ========== */
    :focus-visible {
        outline: 2px solid #14b8a6;
        outline-offset: 2px;
    }
    
    /* ========== RESPONSIVE ========== */
    @media (max-width: 768px) {
        .font-serif {
            line-height: 1.1;
        }
    }
</style>