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

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

body {
    margin: 0;
    background-color: #060d1f;
    color: #d4f0e2;
}

::selection {
    background: rgba(31, 160, 104, 0.3);
    color: #f0faf5;
}

img {
    display: block;
    max-width: 100%;
}

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #060d1f;
}
::-webkit-scrollbar-thumb {
    background: rgba(111, 199, 158, 0.2);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(111, 199, 158, 0.4);
}

/* ── Navigation ─────────────────────────────────────────── */
#nav {
    background: transparent;
    transition: background 0.5s ease, backdrop-filter 0.5s ease;
}

#nav.scrolled {
    background: rgba(6, 13, 31, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(111, 199, 158, 0.06);
}

/* ── Mobile Menu ────────────────────────────────────────── */
#mobile-menu {
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    transition: opacity 0.3s ease;
}

.mobile-link:hover {
    opacity: 0.8;
}

/* ── Scroll Reveal (below fold only, progressive enhanc.) ─ */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: opacity 0.8s ease, transform 0.8s ease;
    }

    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .reveal[data-delay="1"] { transition-delay: 0.1s; }
    .reveal[data-delay="2"] { transition-delay: 0.2s; }
    .reveal[data-delay="3"] { transition-delay: 0.3s; }
    .reveal[data-delay="4"] { transition-delay: 0.4s; }
}

/* ── Form focus styles ──────────────────────────────────── */
input:focus,
textarea:focus {
    outline: none;
}

input::placeholder,
textarea::placeholder {
    color: rgba(111, 199, 158, 0.2);
}

/* ── Subtle hover glow on cards ─────────────────────────── */
.group:hover .group-hover\\:scale-105 {
    transform: scale(1.05);
}

/* ── Map filter override for light mode ─────────────────── */
iframe[title*="map"] {
    border-radius: 0;
}

/* ── Responsive adjustments ─────────────────────────────── */
@media (max-width: 767px) {
    .font-serif {
        line-height: 1.1;
    }
}

/* ── Print styles ───────────────────────────────────────── */
@media print {
    body {
        background: white;
        color: black;
    }
    #nav, #mobile-menu, footer {
        display: none;
    }
}