/* Base & Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    overflow-x: hidden;
}

::selection {
    background-color: #1a5c2a;
    color: #faf8f4;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f5f0e8;
}
::-webkit-scrollbar-thumb {
    background: #a5d6a7;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2e7d32;
}

/* Navbar */
#navbar {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

#navbar.scrolled {
    background: rgba(250, 248, 244, 0.92);
    box-shadow: 0 1px 20px rgba(26, 92, 42, 0.08);
}

#navbar.scrolled .font-display {
    color: #1a5c2a !important;
}

/* Mobile Menu */
.mobile-link {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

#mobileMenu.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

#mobileMenu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobileMenu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* Menu Button Animation */
.menu-line {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
    transform: translateX(8px);
}
#menuBtn.active .menu-line:nth-child(3) {
    width: 24px;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Product Cards */
.product-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.5s ease, border-color 0.5s ease;
}

.product-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.product-card:nth-child(1) { transition-delay: 0.05s; }
.product-card:nth-child(2) { transition-delay: 0.1s; }
.product-card:nth-child(3) { transition-delay: 0.15s; }
.product-card:nth-child(4) { transition-delay: 0.2s; }
.product-card:nth-child(5) { transition-delay: 0.25s; }
.product-card:nth-child(6) { transition-delay: 0.3s; }

/* Feature Cards */
.feature-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:nth-child(1) { transition-delay: 0.05s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.15s; }
.feature-card:nth-child(4) { transition-delay: 0.2s; }

/* About Section Image */
#about img {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

#about img.visible {
    opacity: 1;
    transform: scale(1);
}

/* Contact Form Input Focus */
input:focus, textarea:focus {
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

/* Smooth image loading */
img {
    opacity: 0;
    transition: opacity 0.5s ease;
}

img.loaded {
    opacity: 1;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
    .product-card, .feature-card {
        opacity: 1;
        transform: none;
    }
}

/* Focus visible */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #2e7d32;
    outline-offset: 2px;
    border-radius: 4px;
}

/* Print styles */
@media print {
    nav, #hero .absolute, .product-card, .feature-card {
        display: none !important;
    }
    body {
        color: #000;
        background: #fff;
    }
}