/* ============================================
   LUMEZTRA - Global Styles
   ============================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #fff;
    color: #1a1a1a;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #f0f0f0;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.navbar-brand {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 3px;
    font-family: Georgia, serif;
    color: #000;
}

/* ============================================
   SECTION DEFAULTS
   ============================================ */

.section {
    padding: 4rem 1rem;
    max-width: 100%;
    margin: 0 auto;
}

/* Sistema de scroll reveal reutilizable */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.reveal-up.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.section-title p {
    font-size: 13px;
    color: #999;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

/* ============================================
   PRODUCTS GRID
   ============================================ */

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
}

.product-card {
    cursor: pointer;
    transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1),
                filter 0.4s ease,
                opacity 0.6s ease;
}

/* Scroll reveal escalonado */
.product-card.reveal {
    opacity: 0;
    transform: translateY(36px);
}

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

.product-card.is-visible:hover {
    transform: translateY(-10px);
    filter: brightness(1.06);
    transition-delay: 0s !important;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-image {
    width: 100%;
    aspect-ratio: 3/4;
    background: #f5f5f5;
    margin-bottom: 1rem;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1400px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .navbar {
        padding: 1rem;
    }

    .navbar-brand {
        font-size: 20px;
    }

    .section-title h2 {
        font-size: 24px;
    }
}