/* Custom styles for Powerful Nutrition */

html {
    scroll-behavior: smooth;
}

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

/* Subtle grain texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.015;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Scroll reveal base state (visible by default for accessibility) */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

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

    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
}

/* Mobile menu transitions */
#mobile-menu {
    animation: slideDown 0.3s ease forwards;
}

#mobile-menu.hidden {
    animation: slideUp 0.25s ease 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); pointer-events: none; }
}

/* Mobile link transitions */
.mobile-link {
    opacity: 0;
    animation: fadeUp 0.3s ease forwards;
}

.mobile-link:nth-child(1) { animation-delay: 0.05s; }
.mobile-link:nth-child(2) { animation-delay: 0.1s; }
.mobile-link:nth-child(3) { animation-delay: 0.15s; }
.mobile-link:nth-child(4) { animation-delay: 0.2s; }

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

/* Image lazy load placeholder */
img {
    background-color: rgb(250, 236, 218);
}

/* Selection color */
::selection {
    background-color: rgb(235, 196, 176);
    color: rgb(148, 71, 51);
}

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

::-webkit-scrollbar-track {
    background: rgb(253, 246, 238);
}

::-webkit-scrollbar-thumb {
    background: rgb(222, 180, 155);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgb(196, 112, 75);
}