/* ===================================
   NIVI CRAFT - Premium Design System
   =================================== */

html {
    scroll-behavior: smooth;
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================
   ANIMATION SYSTEM
   ================== */

.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up-d1 { transition-delay: 0.1s; }
.fade-up-d2 { transition-delay: 0.2s; }
.fade-up-d3 { transition-delay: 0.3s; }
.fade-up-d4 { transition-delay: 0.4s; }

.fade-in {
    opacity: 0;
    transition: opacity 1.2s ease-out;
}
.fade-in.visible { opacity: 1; }

/* ==================
   NAV SHADOW ON SCROLL
   ================== */
.nav-scrolled {
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

/* ==================
   HERO
   ================== */

.hero-parallax {
    transform: scale(1.05);
    transition: transform 8s ease-out;
}
.hero-parallax.active {
    transform: scale(1);
}

/* ==================
   MARQUEE TICKER
   ================== */
.marquee-track {
    display: flex;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
    gap: 3rem;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
.marquee-track:hover {
    animation-play-state: paused;
}

/* ==================
   PRODUCT CARDS
   ================== */
.product-card:hover .product-img {
    transform: scale(1.07);
}
.product-img {
    transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.product-card .card-action {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.product-card:hover .card-action {
    opacity: 1;
    transform: translateY(0);
}

/* ==================
   COLLECTION BANNERS
   ================== */
.collection-banner .banner-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.1) 50%, transparent 100%);
    transition: background 0.5s ease;
}
.collection-banner:hover .banner-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
}
.collection-banner .banner-arrow {
    display: inline-block;
    transition: transform 0.3s ease;
}
.collection-banner:hover .banner-arrow {
    transform: translateX(6px);
}

/* ==================
   INPUT FOCUS
   ================== */
.newsletter-input:focus {
    outline: none;
    border-color: #000;
    box-shadow: 0 0 0 1px #000;
}

/* ==================
   NO SCROLLBAR
   ================== */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

/* ==================
   TESTIMONIAL CARD
   ================== */
.testimonial-card {
    background: #fff;
    border: 1px solid #f0f0f0;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.testimonial-card:hover {
    box-shadow: 0 20px 60px rgba(0,0,0,0.08);
    transform: translateY(-4px);
}

/* ==================
   FOOTER LINK HOVER
   ================== */
.footer-link {
    position: relative;
    display: inline-block;
}
.footer-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -2px;
    left: 0;
    background-color: #000;
    transition: width 0.3s ease;
}
.footer-link:hover::after { width: 100%; }