*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    min-height: 100vh;
    overflow-x: hidden;
}

::selection {
    background: rgba(74, 122, 82, 0.15);
    color: #1a3929;
}

/* Scroll reveal base — content is visible by default, JS adds the animated state */
.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navbar scroll state */
nav.scrolled {
    background: rgba(250, 249, 247, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(26, 60, 42, 0.06);
}

nav.scrolled .nav-text {
    color: #1a3929;
}

nav.scrolled .nav-link {
    color: #2d4a32;
}

nav.scrolled .nav-link:hover {
    color: #4a7a52;
}

/* Mobile menu transitions */
#mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
}

#mobile-menu.closed {
    opacity: 0;
    pointer-events: none;
}

.menu-line {
    display: block;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
    width: 1.25rem;
}

/* Smooth anchor offset for fixed nav */
section[id] {
    scroll-margin-top: 80px;
}

/* Image optimization */
img {
    max-width: 100%;
    height: auto;
}

/* Focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid #4a7a52;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Remove default button styles */
button {
    background: none;
    border: none;
    cursor: pointer;
}

/* Subtle loading state for images */
img {
    background: linear-gradient(135deg, #e3efe7 0%, #f5f3ef 100%);
}