html { scroll-behavior: smooth; }
body {
    padding-bottom: env(safe-area-inset-bottom);
    -webkit-tap-highlight-color: transparent;
    overflow-x: clip;
}
button, a { touch-action: manipulation; }
.dropdown:hover .dropdown-menu { display: block; }
.marquee-container { overflow: hidden; white-space: nowrap; width: 100%; }
.marquee-content { display: flex; width: max-content; animation: scroll 40s linear infinite; }
@media (hover: hover) { .marquee-content:hover { animation-play-state: paused; } }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.cart-panel {
    transform: translateX(100%);
    transition: transform .3s ease;
    padding-bottom: env(safe-area-inset-bottom);
    height: 100dvh;
    height: 100vh;
}
.cart-panel.open { transform: translateX(0); }
.cart-overlay, .modal-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}
.cart-overlay.open, .modal-overlay.open { opacity: 1; pointer-events: auto; }
.filter-btn.active { background: #0b6b4c; color: #fff; border-color: #0b6b4c; }
.product-card { transition: border-color .25s ease; }
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
    html.js-ready .reveal {
        opacity: 0;
        transform: translateY(16px);
        transition: opacity .5s ease, transform .5s ease;
    }
    html.js-ready .reveal.visible { opacity: 1; transform: none; }
}
.hero-grid {
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 48px 48px;
}
.cylinder-art { width: 52px; height: 90px; position: relative; flex-shrink: 0; }
.cylinder-art .cyl-cap { width: 16px; height: 9px; margin: 0 auto; border-radius: 3px 3px 0 0; background: #8a9199; }
.cylinder-art .cyl-valve { width: 9px; height: 7px; margin: 0 auto; background: #6b7280; }
.cylinder-art .cyl-neck { width: 20px; height: 7px; margin: 0 auto; border-radius: 2px; background: #c5cad0; }
.cylinder-art .cyl-body {
    width: 36px; height: 60px; margin: 0 auto; border-radius: 10px 10px 8px 8px;
    position: relative; overflow: hidden;
    border: 1px solid rgba(15, 23, 42, .16);
    box-shadow: inset 6px 0 10px rgba(255,255,255,.22), inset -5px 0 8px rgba(0,0,0,.28);
}
.cylinder-art .cyl-body::before {
    content: ''; position: absolute; left: 7px; top: 8px; bottom: 10px; width: 5px;
    border-radius: 4px; background: rgba(255,255,255,.28);
}
.cylinder-art .cyl-stripe { position: absolute; left: 0; right: 0; top: 38%; height: 7px; }
.cylinder-art .cyl-label {
    position: absolute; left: 50%; top: 58%; transform: translate(-50%,-50%) rotate(-90deg);
    white-space: nowrap; font-size: 7px; font-weight: 800; letter-spacing: .04em;
}
.filters-scroll {
    display: flex; gap: .5rem; overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none; padding: 0 4px 4px;
}
.filters-scroll::-webkit-scrollbar { display: none; }
.filters-scroll .filter-btn { flex-shrink: 0; }
.tg-fab {
    position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom));
    z-index: 55; width: 56px; height: 56px; border-radius: 50%;
    background: #229ED9; color: #fff; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(34,158,217,.45);
}
body.panel-open .tg-fab { display: none; }
#productSheet {
    position: relative;
    width: min(92vw, 640px);
    max-height: min(88dvh, 88vh);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    margin: max(8vh, env(safe-area-inset-top)) auto 16px;
    border-radius: 1.5rem;
}
@media (max-width: 640px) {
    .cylinder-art { width: 44px; height: 78px; }
    .cylinder-art .cyl-body { width: 30px; height: 50px; }
    .cylinder-art .cyl-label { font-size: 6px; }
    nav.sticky { top: 0; }
    #productSheet {
        width: 100%;
        max-height: none;
        height: 100dvh;
        height: 100vh;
        margin: 0;
        border-radius: 0;
    }
}
@media (min-width: 768px) { .tg-fab { display: none; } }