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

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

body {
    overflow-x: hidden;
}

/* Navbar transition */
.nav-logo-text {
    transition: color 0.3s ease;
}

#navbar.scrolled .nav-logo-text {
    color: #102a43;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #14b8a6;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile nav links */
.mobile-nav-link {
    display: block;
}

/* Scroll reveal - progressive enhancement via JS */
.scroll-reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .scroll-reveal:not(.revealed) {
        opacity: 0;
        transform: translateY(24px);
    }
}

/* Hero scroll indicator */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

.animate-bounce {
    animation: bounce 1.5s ease-in-out infinite;
}

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

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #627d98;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #486581;
}

/* Focus styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #14b8a6;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Selection */
::selection {
    background: #14b8a6;
    color: #ffffff;
}