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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

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

::selection {
    background: #1B4332;
    color: #FDFCF8;
}

/* ========== SCROLL REVEAL (progressive enhancement) ========== */
@media (prefers-reduced-motion: no-preference) {
    .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);
    }

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

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

/* Mobile menu transitions */
#mobile-menu {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

#mobile-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.closed {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

/* Header scroll state */
#site-header.scrolled {
    background: rgba(253, 252, 248, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(27, 67, 50, 0.08);
}

/* ========== CUSTOM SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #F9F7F0;
}

::-webkit-scrollbar-thumb {
    background: #8fb396;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #4f7a58;
}

/* ========== ANIMATIONS ========== */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}