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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(74, 222, 128, 0.3);
    color: #f0fdf4;
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #050a14;
}
::-webkit-scrollbar-thumb {
    background: rgba(74, 222, 128, 0.3);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(74, 222, 128, 0.5);
}

/* === Navigation === */
#site-header.scrolled {
    background: rgba(2, 5, 12, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

#site-header.scrolled .menu-line {
    background: rgba(255, 255, 255, 0.9);
}

/* === Mobile Menu === */
#mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

#mobile-menu.open .mobile-link {
    animation: slideIn 0.4s ease forwards;
    opacity: 0;
}

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

@keyframes slideIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile menu button active state */
#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(3px, 3px);
}
#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}
#mobile-menu-btn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(3px, -3px);
    width: 20px;
}

/* === Product Cards === */
.product-card {
    cursor: pointer;
    transform: translateY(0);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(74, 222, 128, 0.15);
}

/* === Scroll Reveal === */
.reveal {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Default visible state for all sections — progressive enhancement */
.section-reveal,
.product-card,
.info-card {
    opacity: 1;
    transform: translateY(0);
}

/* When JS is enabled and prefers-reduced-motion is off, add transition classes */
.js-enabled @media (prefers-reduced-motion: no-preference) {
    .section-reveal {
        transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        transform: translateY(30px);
        opacity: 0;
    }
    .section-reveal.revealed {
        transform: translateY(0);
        opacity: 1;
    }
    .product-card {
        transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        transform: translateY(20px);
        opacity: 0;
    }
    .product-card.revealed {
        transform: translateY(0);
        opacity: 1;
    }
    .info-card {
        transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        transform: translateY(20px);
        opacity: 0;
    }
    .info-card.revealed {
        transform: translateY(0);
        opacity: 1;
    }
}

/* === Form Inputs === */
input:focus,
textarea:focus {
    background: rgba(255, 255, 255, 0.07);
}

/* === Button Ripple === */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* === Responsive === */
@media (max-width: 767px) {
    .font-serif {
        line-height: 1.1;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .product-card .aspect-\[4\/5\] {
        aspect-ratio: 4/5;
    }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

/* === Focus Visible === */
:focus-visible {
    outline: 2px solid rgba(74, 222, 128, 0.6);
    outline-offset: 2px;
}

/* === Print === */
@media print {
    #site-header, #mobile-menu-btn {
        display: none;
    }
    body {
        background: white;
        color: black;
    }
}