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

body {
    overflow-x: hidden;
}

/* Scroll Reveal Animations */
.reveal-item {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: no-preference) {
    .reveal-item {
        opacity: 0;
        transform: translateY(28px);
    }

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

    .reveal-item:nth-child(2) { transition-delay: 0.08s; }
    .reveal-item:nth-child(3) { transition-delay: 0.16s; }
    .reveal-item:nth-child(4) { transition-delay: 0.24s; }
    .reveal-item:nth-child(5) { transition-delay: 0.32s; }
    .reveal-item:nth-child(6) { transition-delay: 0.40s; }
}

/* Hero reveal — always visible, no JS needed */
#hero .reveal-item {
    opacity: 1;
    transform: translateY(0);
}

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

#navbar.scrolled {
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.06), 0 4px 20px rgba(0,0,0,0.2);
}

/* Mobile menu */
#mobileMenu:not(.hidden) {
    display: flex;
    flex-direction: column;
}

.mobile-link {
    display: block;
}

/* 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;
}

/* Selection */
::selection {
    background: #99f6e4;
    color: #134e4a;
}

/* Form select arrow */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
    appearance: none;
    -webkit-appearance: none;
}