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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
}

/* Scroll Reveal — progressive enhancement, respects prefers-reduced-motion */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(32px);
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }

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

    .reveal:nth-child(2) { transition-delay: 0.1s; }
    .reveal:nth-child(3) { transition-delay: 0.2s; }
}

/* Hero animations — above the fold, always visible */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Navbar transition */
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(10, 24, 56, 0.08);
}

#navbar.scrolled .font-serif {
    color: #0a1838 !important;
}

#navbar.scrolled a:not(.px-10) {
    color: #12254f !important;
}

/* Mobile menu */
#mobile-menu.open {
    transform: translateX(0);
}

#mobile-menu-btn.active #bar1 {
    transform: rotate(45deg) translate(3px, 3px);
}

#mobile-menu-btn.active #bar2 {
    opacity: 0;
}

#mobile-menu-btn.active #bar3 {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 1.5rem;
}

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

::-webkit-scrollbar-track {
    background: #f0f3f9;
}

::-webkit-scrollbar-thumb {
    background: #b3c1df;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #8da2cf;
}

/* Selection */
::selection {
    background: #d49a1a;
    color: #0a1838;
}