/* ==========================================================================
   3D INDUSTRIAL MINIMALISM — LIGHT INDUSTRIAL TECH DESIGN SYSTEM
   Brand Identity: 3DA (Impresión 3D Personalizada)
   Primary Colors: Vibrant Crimson Red (#E30613), Gunmetal/Steel Black (#1A1D20), Clean Studio Light (#F4F6F8)
   ========================================================================== */

:root {
    /* Color Palette derived from 3DA Logo */
    --bg-main: #f5f7fa;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-card-hover: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    
    --border-tech: rgba(0, 0, 0, 0.08);
    --border-tech-hover: rgba(227, 6, 19, 0.4);
    
    --text-primary: #12161a;
    --text-secondary: #5a6578;
    --text-muted: #8c98a9;
    
    --accent-red: #e30613;
    --accent-red-dark: #b8000b;
    --accent-red-glow: rgba(227, 6, 19, 0.2);
    --accent-steel: #2c3238;
    --accent-silver: #d1d6dc;
    --accent-green: #00a854;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-tech: 'Space Grotesk', sans-serif;

    /* Shadows & Effects */
    --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.06);
    --shadow-card-hover: 0 16px 40px rgba(227, 6, 19, 0.12), 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-red-glow: 0 0 20px rgba(227, 6, 19, 0.3);
    
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: light;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Studio Ambient Light Background & Grid */
.ambient-glow {
    position: fixed;
    top: -15%;
    left: 50%;
    transform: translateX(-50%);
    width: 85vw;
    height: 550px;
    background: radial-gradient(circle, rgba(227, 6, 19, 0.06) 0%, rgba(200, 200, 220, 0.15) 50%, transparent 75%);
    pointer-events: none;
    z-index: -2;
}

.print-bed-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.035) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    z-index: -1;
    mask-image: radial-gradient(ellipse at center, black 50%, transparent 85%);
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-tech);
    padding: 0.85rem 0;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.03);
}

.nav-container {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

/* Logo imagen real 3DA en navbar */
.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
    display: block;
    /* Quitar fondo gris del logo original (logo tiene fondo blanco/gris claro) */
    filter: drop-shadow(0 2px 6px rgba(0,0,0,0.10));
    transition: transform 0.2s ease;
}

.logo:hover .logo-img {
    transform: scale(1.04);
}

.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.65rem;
    font-family: var(--font-tech);
    background: rgba(0, 168, 84, 0.08);
    color: var(--accent-green);
    border: 1px solid rgba(0, 168, 84, 0.25);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    margin-left: 0.5rem;
}

.status-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Search Bar */
.search-bar {
    position: relative;
    flex: 1;
    max-width: 460px;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.4;
    font-size: 0.9rem;
}

.search-bar input {
    width: 100%;
    padding: 0.65rem 1rem 0.65rem 2.6rem;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0,0,0,0.02);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px var(--accent-red-glow);
}

.btn-primary-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    background: #ffffff;
    color: var(--accent-red);
    border: 1.5px solid var(--accent-red);
    border-radius: 10px;
    text-decoration: none;
    font-family: var(--font-tech);
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-subtle);
}

.btn-primary-ghost:hover {
    background: var(--accent-red);
    color: #fff;
    box-shadow: var(--shadow-red-glow);
}

/* Main Layout */
.main-content {
    max-width: 1680px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

/* Hero Section — franja compacta, sin panel lateral */
.hero-section {
    padding: 1rem 0 2.5rem 0;
    text-align: center;
}

.hero-tag {
    display: inline-block;
    font-family: var(--font-tech);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent-red);
    background: rgba(227, 6, 19, 0.08);
    border: 1px solid rgba(227, 6, 19, 0.2);
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    margin-bottom: 1.2rem;
}

.hero-title {
    font-family: var(--font-tech);
    font-size: 2.85rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
}

.text-gradient {
    color: var(--accent-red);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 620px;
    margin: 0 auto 1.5rem;
}

/* Category Filters Section */
.filter-section {
    margin-bottom: 2.5rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.2rem;
}

.section-title {
    font-family: var(--font-tech);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
}

.accent-hash { color: var(--accent-red); }

.filter-count {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-tech);
}

.categories-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.chip-btn {
    padding: 0.55rem 1.2rem;
    background: #ffffff;
    border: 1px solid var(--border-tech);
    border-radius: 30px;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-subtle);
}

.chip-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-red);
    transform: translateY(-1px);
}

.chip-btn.active {
    background: var(--accent-red);
    color: #ffffff;
    border-color: var(--accent-red);
    box-shadow: var(--shadow-red-glow);
    font-weight: 600;
}

/* Catalog Masonry Grid */
.catalog-section {
    min-height: 400px;
}

.masonry-grid {
    column-count: 6;
    column-gap: 0.9rem;
}

@media (max-width: 1600px) { .masonry-grid { column-count: 5; } }
@media (max-width: 1400px) { .masonry-grid { column-count: 4; } }
@media (max-width: 1100px) { .masonry-grid { column-count: 3; } }
@media (max-width: 800px)  { .masonry-grid { column-count: 2; } }
@media (max-width: 520px)  { .masonry-grid { column-count: 1; } }

/* Product Card — versión compacta para grilla densa de 6 columnas */
.product-card {
    break-inside: avoid;
    margin-bottom: 0.9rem;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    overflow: hidden;
    transition: var(--transition-smooth);
    cursor: pointer;
    position: relative;
    box-shadow: var(--shadow-card);
}

.product-card:hover,
.product-card:focus-visible {
    transform: translateY(-5px);
    border-color: var(--border-tech-hover);
    box-shadow: var(--shadow-card-hover);
}

.product-card:focus-visible {
    outline: 2px solid var(--accent-red);
    outline-offset: 2px;
}

.card-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    background: #f0f3f7;
}

.card-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .card-image-wrapper img {
    transform: scale(1.04);
}

/* Pista de "clickeable" al pasar el mouse (reemplaza al botón Ver detalle) */
.card-hover-hint {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 1.6rem 0.7rem 0.6rem;
    font-family: var(--font-tech);
    font-size: 0.72rem;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    background: linear-gradient(to top, rgba(18, 22, 26, 0.85), transparent);
    opacity: 0;
    transform: translateY(6px);
    transition: var(--transition-fast);
    pointer-events: none;
}

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

.card-content {
    padding: 0.7rem 0.8rem;
}

.card-category {
    font-family: var(--font-tech);
    font-size: 0.62rem;
    color: var(--accent-red);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.card-title {
    font-family: var(--font-tech);
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

/* Modal Overlay & Container */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(18, 22, 26, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    padding: 1.5rem;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background: #ffffff;
    border: 1px solid var(--border-tech);
    border-radius: 24px;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
}

.modal-close {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-tech);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--accent-red);
    color: #fff;
}

.modal-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

@media (max-width: 768px) {
    .modal-detail-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 2.1rem; }
}

.modal-media-wrapper {
    background: #f4f6f8;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-tech);
}

.modal-media-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.modal-info-col h2 {
    font-family: var(--font-tech);
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.modal-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.modal-specs-table {
    background: #f8fafc;
    border: 1px solid var(--border-tech);
    border-radius: 14px;
    padding: 1.2rem;
    margin-bottom: 1.5rem;
}

.modal-spec-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.85rem;
}

.modal-spec-row:last-child {
    border-bottom: none;
}

.modal-spec-row .spec-label {
    color: var(--text-muted);
    font-family: var(--font-tech);
}

.modal-spec-row .spec-value {
    color: var(--text-primary);
    font-weight: 700;
    font-family: var(--font-tech);
}

.btn-whatsapp-full {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.9rem 1.5rem;
    background: #25d366;
    color: #fff;
    border: none;
    border-radius: 12px;
    font-family: var(--font-tech);
    font-size: 0.95rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-whatsapp-full:hover {
    background: #1eb956;
    box-shadow: 0 0 20px rgba(37, 211, 102, 0.3);
}

/* Footer Section */
.footer-section {
    border-top: 1px solid var(--border-tech);
    background: #ffffff;
    padding: 3rem 0 1.5rem 0;
    margin-top: 4rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.02);
}

.footer-container {
    max-width: 1680px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

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

.footer-info h3 {
    font-family: var(--font-tech);
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.footer-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    font-family: var(--font-tech);
    font-size: 0.7rem;
    background: #f0f3f7;
    border: 1px solid var(--border-tech);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    color: var(--text-secondary);
}

.footer-cta h4 {
    font-family: var(--font-tech);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.footer-cta p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #25d366;
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    text-decoration: none;
    font-family: var(--font-tech);
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.btn-whatsapp:hover {
    background: #1eb956;
    box-shadow: 0 0 16px rgba(37, 211, 102, 0.3);
}

.footer-bottom {
    max-width: 1680px;
    margin: 0 auto;
    padding: 1.5rem 1.5rem 0 1.5rem;
    border-top: 1px solid var(--border-tech);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-tech);
}

/* ── Hero CTA buttons ─────────────────────────────────────────────────── */
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.btn-hero-primary,
.btn-hero-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-family: var(--font-tech);
    font-size: 0.9rem;
    font-weight: 700;
    transition: var(--transition-fast);
}

.btn-hero-primary {
    background: #25d366;
    color: #fff;
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.25);
}

.btn-hero-primary:hover {
    background: #1eb956;
    transform: translateY(-2px);
}

.btn-hero-ghost {
    background: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-tech);
    box-shadow: var(--shadow-subtle);
}

.btn-hero-ghost:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.hero-actions { justify-content: center; }

/* ── Instagram @3d_alfredo ────────────────────────────────────────────── */
.btn-instagram {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-family: var(--font-tech);
    font-size: 0.9rem;
    font-weight: 700;
    color: #ffffff;
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    box-shadow: 0 8px 20px rgba(188, 24, 136, 0.22);
    transition: var(--transition-fast);
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(188, 24, 136, 0.35);
}

/* Variante contorneada para la navbar, donde .btn-primary-ghost ya usa el rojo */
.btn-instagram-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 1.1rem;
    background: #ffffff;
    border: 1.5px solid #dc2743;
    border-radius: 10px;
    text-decoration: none;
    font-family: var(--font-tech);
    font-size: 0.85rem;
    font-weight: 700;
    color: #dc2743;
    white-space: nowrap;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition-fast);
}

.btn-instagram-ghost:hover {
    background: linear-gradient(45deg, #f09433, #dc2743, #bc1888);
    border-color: transparent;
    color: #ffffff;
}

/* En pantallas angostas la navbar solo muestra el ícono */
@media (max-width: 1100px) {
    .nav-ig-handle { display: none; }
    .btn-instagram-ghost { padding: 0.65rem 0.8rem; }
}

.footer-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.footer-ig-note {
    margin-top: 0.9rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.footer-ig-note strong {
    color: #dc2743;
}

.modal-note a {
    color: #dc2743;
    font-weight: 700;
    text-decoration: none;
}

.modal-note a:hover { text-decoration: underline; }

/* ── Contador dentro de los chips de categoría ────────────────────────── */
.chip-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.chip-count {
    font-family: var(--font-tech);
    font-size: 0.68rem;
    font-weight: 700;
    line-height: 1;
    padding: 0.18rem 0.42rem;
    border-radius: 20px;
    background: #f0f3f7;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.chip-btn.active .chip-count {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

/* ── Estado vacío del catálogo ────────────────────────────────────────── */
.empty-state {
    column-span: all;
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
    font-family: var(--font-tech);
}

.empty-state .empty-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/* ── Detalle: proporción estable de la imagen y nota al pie ───────────── */
/* Mantiene el efecto masonry (altura variable) pero evita tarjetas gigantes
   con fotos verticales muy largas */
.card-image-wrapper img {
    max-height: 300px;
    object-fit: cover;
}

.modal-media-wrapper img {
    max-height: 70vh;
    object-fit: contain;
    background: #f4f6f8;
}

.modal-note {
    margin-top: 0.9rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.5;
}

/* Logo 3DA en footer */
.footer-logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
    display: block;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 10px rgba(227, 6, 19, 0.15));
}