/* Sierra Nutrition — Custom Styles */

/* Base */
html {
    scroll-behavior: smooth;
}

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

/* Selection */
::selection {
    background-color: #1a4a23;
    color: #fdfbf7;
}

/* Navigation */
.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

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

/* Mobile Menu */
.mobile-nav-link {
    position: relative;
}

/* Scroll Reveal Animations */
.reveal-up {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal-up,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .reveal-up.js-reveal,
    .reveal-left.js-reveal,
    .reveal-right.js-reveal {
        opacity: 0;
        transform: translateY(30px);
    }
    
    .reveal-left.js-reveal {
        transform: translateX(-30px);
    }
    
    .reveal-right.js-reveal {
        transform: translateX(30px);
    }
    
    img {
        transition: none;
    }
    
    .group:hover img {
        transform: none;
    }
}

/* Default hidden state for JS-revealed elements (progressive enhancement) */
@media (prefers-reduced-motion: no-preference) {
    .js-reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .js-reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
    
    .js-reveal-left {
        opacity: 0;
        transform: translateX(-30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .js-reveal-left.revealed {
        opacity: 1;
        transform: translateX(0);
    }
    
    .js-reveal-right {
        opacity: 0;
        transform: translateX(30px);
        transition: opacity 0.8s ease, transform 0.8s ease;
    }
    
    .js-reveal-right.revealed {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background-color: rgba(253, 251, 247, 0.97) !important;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(26, 74, 35, 0.08);
}

.navbar-scrolled .nav-link {
    color: #1a4a23;
}

.navbar-scrolled .menu-line {
    background-color: #1a4a23;
}

/* Image hover */
img {
    transition: transform 0.7s ease;
}

/* Smooth focus */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #1a4a23;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #faf5eb;
}

::-webkit-scrollbar-thumb {
    background: #b8d8bc;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #85be8c;
}