/* Custom styles — extends Tailwind */

/* Smooth scroll offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}

/* Navbar scroll state */
.nav-scrolled {
    background: rgba(255, 255, 255, 0.97) !important;
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-scrolled .nav-link {
    color: #1e293b !important;
}

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

.nav-scrolled .mobile-toggle span {
    background: #1e293b !important;
}

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

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

/* Scroll reveal — progressive enhancement */
.reveal {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(28px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
        opacity: 1;
        transform: none;
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
}

/* Selection color */
::selection {
    background: #99f6e4;
    color: #042f2e;
}

/* Subtle scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}