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

body {
    overflow-x: hidden;
}

/* Nav scroll state */
#nav.scrolled {
    background: rgba(253, 252, 248, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 20px rgba(27, 67, 50, 0.08);
}

#nav.scrolled .nav-link {
    color: #1B4332;
}

#nav.scrolled .nav-link:hover {
    color: #2d7a3a;
}

#nav.scrolled .font-display {
    color: #1B4332;
}

#nav.scrolled .font-display:hover {
    color: #2d7a3a;
}

/* Hero background */
.hero-bg {
    will-change: transform;
}

.hero-bg img {
    will-change: transform;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1B4332;
    border-radius: 9999px;
    transition: width 0.25s ease;
}

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

#nav.scrolled .nav-link::after {
    background: #2d7a3a;
}

/* Burger animation */
#menuBtn.active .burger-line:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

#menuBtn.active .burger-line:nth-child(2) {
    opacity: 0;
}

#menuBtn.active .burger-line:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
}

/* Mobile link hover */
.mobile-link {
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.mobile-link:hover {
    border-bottom-color: #d5e5d8;
}

/* Scroll reveal */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    html {
        scroll-behavior: auto;
    }
    .beer-card, .event-card {
        transition: none;
    }
    .beer-card:hover, .event-card:hover {
        transform: none;
    }
}

/* Scroll reveal hidden state — progressive enhancement via JS */
.reveal-hidden {
    opacity: 0;
    transform: translateY(24px);
}

/* Beer card shimmer */
.beer-card {
    position: relative;
    overflow: hidden;
}

.beer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
    transition: left 0.5s ease;
    z-index: 0;
}

.beer-card:hover::before {
    left: 100%;
}

.beer-card > * {
    position: relative;
    z-index: 1;
}

/* Event card image zoom */
.event-card img {
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Smooth section transitions */
section {
    position: relative;
}

/* Selection color */
::selection {
    background: #1B4332;
    color: #FDFCF8;
}