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

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

body {
    overflow-x: hidden;
}

::selection {
    background-color: rgba(109, 27, 27, 0.15);
    color: #3b0707;
}

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

/* Scroll Reveal — progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.7s ease, transform 0.7s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fallback: always visible if JS is disabled */
.reveal {
    opacity: 1;
    transform: none;
}

/* Scroll line animation */
@keyframes scrollLine {
    0% {
        top: -16px;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        top: 40px;
        opacity: 0;
    }
}

.animate-scroll-line {
    animation: scrollLine 1.8s ease-in-out infinite;
}

/* Navbar transitions */
#navbar {
    transition: background-color 0.4s ease, color 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background-color: rgba(250, 249, 248, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

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

/* Form focus styles */
input:focus,
textarea:focus {
    outline: none;
}

/* Smooth image loading */
img {
    loading: lazy;
    will-change: transform;
}

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

::-webkit-scrollbar-track {
    background: #faf9f8;
}

::-webkit-scrollbar-thumb {
    background: #d6d3d1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a29e;
}

/* Product card hover lift */
.group:hover .group-hover\:scale-105 {
    transform: scale(1.05);
}

/* Link hover underline */
.nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s ease;
    margin-top: 2px;
}

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

/* Mobile menu link transitions */
.mobile-menu-link {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

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

#mobile-menu.open .mobile-menu-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-menu-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-menu-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-menu-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-menu-link:nth-child(5) { transition-delay: 0.25s; }
#mobile-menu.open .mobile-menu-link:nth-child(6) { transition-delay: 0.3s; }

/* Hamburger animation */
#menu-toggle.active #menu-line-1 {
    transform: rotate(45deg) translate(3px, 3px);
}

#menu-toggle.active #menu-line-2 {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* Subtle pattern for stone sections */
.stone-pattern {
    background-image: 
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Print styles */
@media print {
    nav, #contact, .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
    
    #navbar {
        position: relative;
        background: white;
        box-shadow: none;
    }
}