/* ── Base & Typography ── */
html {
    scroll-behavior: smooth;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: #0d9488;
    color: white;
}

/* ── Navbar ── */
#nav {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease;
}

#nav.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

#nav.scrolled #nav-logo {
    color: #0d9488;
}

#nav.scrolled .nav-link {
    color: #475569;
}

#nav.scrolled .nav-link:hover {
    color: #0d9488;
}

/* ── Card Float Animations ── */
.card-float {
    animation: float 6s ease-in-out infinite;
}

.card-float-delayed {
    animation: float 5s ease-in-out 1s infinite;
}

.card-float-delayed-2 {
    animation: float 5.5s ease-in-out 2s infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* ── Scroll Reveal ── */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 1;
    transform: none;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up {
    transform: translateY(0);
}

.reveal-left {
    transform: translateX(0);
}

.reveal-right {
    transform: translateX(0);
}

/* These are progressively enhanced — JS adds the animated state */
.reveal-animate.reveal-up {
    transform: translateY(40px);
    opacity: 0;
}

.reveal-animate.reveal-left {
    transform: translateX(-40px);
    opacity: 0;
}

.reveal-animate.reveal-right {
    transform: translateX(40px);
    opacity: 0;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-animate.reveal-up.animated {
        transform: translateY(0);
        opacity: 1;
    }
    .reveal-animate.reveal-left.animated {
        transform: translateX(0);
        opacity: 1;
    }
    .reveal-animate.reveal-right.animated {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ── Smooth hover for cards ── */
.group:hover img {
    transform: scale(1.05);
}

/* ── Button focus states ── */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #0d9488;
    outline-offset: 2px;
    border-radius: 4px;
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Map container ── */
iframe {
    filter: saturate(0.8) contrast(1.05);
    transition: filter 0.3s ease;
}

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

/* ── Subtle divider accents ── */
section::before {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #0d9488, #5eead4);
    border-radius: 2px;
    margin-bottom: 1.5rem;
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}