/* Custom styles for Baldwin City Metabolic Medicine */

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

body {
    overflow-x: hidden;
}

/* Hero animations - only for below-fold content via JS */
.hero-anim {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

/* Scroll reveal - progressive enhancement */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .hero-anim {
        transition: none;
    }
}

/* Navbar scroll state */
.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(16, 42, 67, 0.06);
}

/* Mobile menu */
.mobile-menu-open {
    opacity: 1 !important;
    pointer-events: all !important;
}

/* Mobile menu links */
.mobile-link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Menu animation */
.menu-open .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-open .menu-line:nth-child(2) {
    opacity: 0;
}

.menu-open .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.5rem;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f0f4f8;
}

::-webkit-scrollbar-thumb {
    background: #bcccdc;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9fb3c8;
}

/* Selection color */
::selection {
    background-color: rgba(74, 222, 128, 0.2);
    color: #102a43;
}

/* Focus styles */
input:focus,
textarea:focus,
button:focus,
a:focus {
    outline: none;
}

/* Subtle hover lift for cards */
.group:hover {
    transform: translateY(-2px);
}

.group {
    transition: transform 0.3s ease;
}

@media (prefers-reduced-motion: reduce) {
    .group:hover {
        transform: none;
    }
    
    .group {
        transition: none;
    }
}