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

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

body {
    overflow-x: hidden;
}

/* ── Navbar ── */
#navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

#navbar.scrolled {
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

/* ── Floating stat cards ── */
.float-card-1 {
    animation: floatA 4s ease-in-out infinite;
}

.float-card-2 {
    animation: floatB 4.5s ease-in-out infinite;
    animation-delay: 0.5s;
}

.float-card-3 {
    animation: floatA 5s ease-in-out infinite;
    animation-delay: 1s;
}

@keyframes floatA {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes floatB {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

/* ── Scroll reveal ── */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Default state is visible — JS enhances with staggered delays */
@media (prefers-reduced-motion: no-preference) {
    .scroll-reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }

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

/* ── Mobile menu ── */
#mobileMenu.open {
    animation: slideDown 0.25s ease;
}

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

.mobile-link {
    display: block;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.mobile-link:last-child {
    border-bottom: none;
}

/* ── Selection ── */
::selection {
    background: #FFADAD;
    color: #1E1E25;
}

/* ── Focus visible ── */
:focus-visible {
    outline: 2px solid #FF6B6B;
    outline-offset: 2px;
}

/* ── Utility ── */
@media (max-width: 767px) {
    .float-card-1,
    .float-card-2,
    .float-card-3 {
        display: none;
    }
}