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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Scroll Reveal (progressive enhancement) ===== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .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; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ===== Navbar Scroll State ===== */
#navbar.scrolled {
    background: rgba(2, 6, 23, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

#navbar.scrolled .nav-link {
    color: rgba(255, 255, 255, 0.85);
}

#navbar.scrolled .nav-link:hover {
    color: #5eead4;
}

/* ===== Mobile Menu Transitions ===== */
#mobileMenu.open {
    opacity: 1;
    pointer-events: all;
}

#mobileMenu.closed {
    opacity: 0;
    pointer-events: none;
}

/* ===== Custom Selection ===== */
::selection {
    background: #0d9488;
    color: white;
}

/* ===== Focus Styles ===== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #2dd4bf;
    outline-offset: 4px;
    border-radius: 4px;
}

/* ===== Smooth Image Loading ===== */
img {
    background-color: #f1f5f9;
}

/* ===== Typography refinements ===== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.1;
}

/* ===== Button hover lift ===== */
a[href] {
    text-decoration: none;
}

/* ===== Subtle card hover ===== */
.group:hover .group-hover\:scale-110 {
    transform: scale(1.1);
}

/* ===== Map container ===== */
iframe {
    filter: saturate(0.8) contrast(1.05);
    transition: filter 0.4s ease;
}

iframe:hover {
    filter: saturate(1) contrast(1);
}

/* ===== Responsive adjustments ===== */
@media (max-width: 768px) {
    .font-serif {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }
}

/* ===== Print styles ===== */
@media print {
    nav, #mobileMenu, .reveal {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }

    .bg-slate-950, .bg-teal-700 {
        background: #fff !important;
        color: #000 !important;
    }
}