*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(13, 115, 119, 0.4);
    color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #020617;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #0d7377;
}

/* Scroll reveal base — content always visible */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* Navbar glass effect */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

/* Hero image parallax-like subtle effect */
#hero img {
    will-change: transform;
}

/* Button focus styles */
button:focus-visible,
a:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
}

/* Mobile menu animation */
#mobile-menu {
    animation: slideDown 0.3s ease;
}

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

/* Image hover zoom */
.group img {
    transition: transform 0.5s ease;
}

/* Subtle glow on teal elements */
.text-teal-400 {
    text-shadow: 0 0 20px rgba(20, 184, 166, 0.3);
}

/* Map dark theme override */
iframe[title*="Maps"] {
    border-radius: 1rem;
}