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

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

body {
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::selection {
    background: #7dbf96;
    color: #061a10;
}

/* ========== HEADER ========== */
#site-header {
    background: rgba(253, 252, 248, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(22, 78, 49, 0.08);
}

#site-header.scrolled {
    background: rgba(253, 252, 248, 0.95);
    box-shadow: 0 4px 24px rgba(6, 26, 16, 0.08);
}

#site-header .h-18 {
    height: 72px;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #166534;
    border-radius: 1px;
    transition: width 0.25s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* ========== MOBILE MENU ========== */
#mobile-menu {
    animation: slideDown 0.25s ease-out;
}

#mobile-menu.hidden {
    animation: slideUp 0.2s ease-in forwards;
}

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

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

/* ========== HERO BLOBS ========== */
.hero-blob {
    will-change: transform;
}

.blob-1 {
    animation: float1 8s ease-in-out infinite;
}

.blob-2 {
    animation: float2 10s ease-in-out infinite;
}

.blob-3 {
    animation: float3 12s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(20px, -30px) scale(1.05); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-25px, 20px) scale(1.08); }
}

@keyframes float3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

/* ========== REVEAL ANIMATIONS ========== */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ========== SCROLL INDICATOR ========== */
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(6px); opacity: 1; }
}

/* ========== UTILITY ========== */
@media (max-width: 639px) {
    .font-serif {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
}

/* Focus visible */
:focus-visible {
    outline: 2px solid #166534;
    outline-offset: 2px;
    border-radius: 4px;
}