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

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

body {
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* ===== NAVBAR SCROLL STATE ===== */
#navbar {
    background: transparent;
    transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 20px rgba(8, 21, 64, 0.08);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    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);
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
    .animate-bounce {
        animation: none;
    }
    .animate-pulse {
        animation: none;
    }
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0f3ff;
}
::-webkit-scrollbar-thumb {
    background: #b3c2ff;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #8aa4ff;
}

/* ===== SELECTION ===== */
::selection {
    background: #bbf7d0;
    color: #0f2782;
}