/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-tap-highlight-color: transparent;
}

body {
    overflow-x: hidden;
}

::selection {
    background: #2dd4bf;
    color: #0f172a;
}

/* === Scroll Reveal (Progressive Enhancement) === */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    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[data-reveal] {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .scroll-reveal[data-reveal].revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Navbar === */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

#navbar.scrolled .nav-text {
    color: #1e293b;
}

#navbar.scrolled a:not(.bg-teal-500) {
    color: #475569;
}

#navbar.scrolled a:not(.bg-teal-500):hover {
    color: #0d9488;
}

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

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

/* === 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;
}

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

/* === Print === */
@media print {
    #navbar, .scroll-reveal {
        display: block !important;
        opacity: 1 !important;
    }

    #hero {
        min-height: auto;
        padding: 2rem 0;
    }
}