/* ==================== RESET & GENERAL ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta de colores: NEGRO, BLANCO Y AMARILLO (Vibrante) */
    --color-bg-dark: #0A0A0A; /* Negro profundo */
    --color-text-light: #FFFFFF; /* Blanco */
    --color-accent-yellow: #FFC300; /* AMARILLO VIBRANTE (Acento principal) */
    --color-card-bg: #FFFFFF; /* Blanco para tarjetas */
    --color-text-dark: #222; /* Texto oscuro en tarjetas */
    --color-border-dark: #333;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text-dark); 
    line-height: 1.5;
    text-transform: uppercase;
    transition: filter 0.3s ease;
}

/* Efecto BLUR en el cuerpo cuando el modal está activo (solo al catálogo) */
body.modal-abierto > :not(.modal-gallery) {
    filter: blur(4px);
    transition: filter 0.3s ease;
}

/* ==================== FONDO Y ANIMACIÓN (Movimiento y Brillo) ==================== */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-dark);
    z-index: -4;
}

/* Partículas animadas grandes (Brillo Amarillo sobre negro) */
.particles-layer {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: -1;
    /* Efecto gradiente de fondo en constante movimiento (solo Amarillo) */
    background: radial-gradient(circle at 50% 50%, rgba(255, 195, 0, 0.2) 0%, transparent 50%);
    background-size: 200vmax 200vmax;
    animation: backgroundPan 60s linear infinite;
    opacity: 0.3;
}
@keyframes backgroundPan {
    0% { background-position: 0% 0%; }
    100% { background-position: 100% 100%; }
}

/* ==================== HEADER & NAVEGACIÓN DINÁMICA ==================== */
header {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    padding: 1.5rem 2rem;
    text-align: center;
    box-shadow: 0 0 20px rgba(255, 195, 0, 0.4); /* Sombra de brillo Amarillo */
    border-bottom: 3px solid var(--color-accent-yellow);
}

.logo-text {
    font-family: 'Roboto Slab', serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 10px;
    text-shadow: 0 0 8px var(--color-accent-yellow); /* Efecto Neón Amarillo */
}

.logo-text .highlight-neon {
    color: var(--color-accent-yellow);
}

nav ul {
    display: flex;
    justify-content: center;
    gap: 25px;
    list-style: none;
    flex-wrap: wrap;
    margin-top: 15px;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text-light);
    font-weight: 400;
    padding: 8px 15px;
    transition: all .3s ease;
    border-bottom: 2px solid transparent;
}

.nav-link:hover {
    color: var(--color-accent-yellow); 
    border-bottom: 2px solid var(--color-accent-yellow);
    text-shadow: 0 0 5px var(--color-accent-yellow);
}

/* Botones de Contacto - Diseño Amarillo sobre Negro */
.btn-contact {
    text-decoration: none;
    padding: 10px 25px;
    border-radius: 4px; 
    font-weight: 700;
    transition: all .3s ease;
}

.btn-whatsapp {
    background: var(--color-accent-yellow);
    color: var(--color-bg-dark);
    box-shadow: 0 0 10px rgba(255, 195, 0, 0.6);
}

.btn-whatsapp:hover {
    background: #e6b200;
    transform: translateY(-2px);
    box-shadow: 0 0 15px var(--color-accent-yellow);
}

.btn-call {
    background: transparent;
    color: var(--color-accent-yellow); 
    border: 2px solid var(--color-accent-yellow);
}

.btn-call:hover {
    background: var(--color-accent-yellow);
    color: var(--color-bg-dark);
    transform: translateY(-2px);
    box-shadow: 0 0 15px var(--color-accent-yellow);
}

/* ==================== CATÁLOGO DE PRODUCTOS ==================== */
.catalogo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    padding: 50px 30px;
    gap: 35px;
}

.maquinaria {
    background: var(--color-card-bg);
    border-radius: 8px; 
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    padding: 25px;
    text-align: center;
    transition: all .4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid #ddd;
}

/* Brillo y elevación al pasar el ratón */
.maquinaria:hover {
    box-shadow: 0 10px 30px rgba(255, 195, 0, 0.6); /* Sombra de brillo Amarillo */
    transform: translateY(-10px) scale(1.02);
    border: 1px solid var(--color-accent-yellow);
}

/* Efecto SHINE avanzado (usando blanco brillante) */
.maquinaria::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(120deg, rgba(255,255,255,0.0), rgba(255,255,255,0.3), rgba(255,255,255,0.0));
    transform: skewX(-20deg);
    animation: shine 6s infinite;
    opacity: 0.5;
}

@keyframes shine {
    0% { left: -100%; }
    20% { left: 100%; }
    100% { left: 100%; }
}

.image-container {
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 15px;
    border: 1px solid var(--color-border-dark);
}

.maquinaria img {
    width: 100%;
    max-height: 250px;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.maquinaria:hover img {
    transform: scale(1.08);
}

.maquinaria h2 {
    font-family: 'Roboto Slab', serif;
    font-size: 1.4rem;
    margin: 10px 0 5px;
    color: var(--color-text-dark);
    border-bottom: 2px solid var(--color-accent-yellow);
    padding-bottom: 5px;
}

.summary {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 10px;
    font-weight: 700;
}

.specs {
    list-style: none;
    padding: 0;
    margin: 15px 0;
    text-align: left;
    border-top: 1px solid #ddd;
    padding-top: 10px;
    font-size: 0.9rem;
}

.specs li {
    padding: 3px 0;
    color: var(--color-text-dark);
}

.spec-label {
    color: var(--color-accent-yellow); 
    font-weight: 700;
    display: inline-block;
    min-width: 100px; 
    margin-right: 5px;
}

/* ==================== BOTONES DE ACCIÓN ==================== */
.actions {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 15px;
}

/* Botones de alternar (Detalles/Galería) */
.btn-toggle {
    flex-grow: 1;
    padding: 10px 15px;
    border: 2px solid var(--color-accent-yellow);
    background: var(--color-bg-dark);
    color: var(--color-accent-yellow);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all .3s ease;
    box-shadow: 0 0 5px rgba(255, 195, 0, 0.4);
}

.btn-toggle:hover {
    background: var(--color-accent-yellow);
    color: var(--color-bg-dark);
    transform: scale(1.02);
    box-shadow: 0 0 15px var(--color-accent-yellow);
}

/* Botón de Adquisición (WhatsApp) - El botón más importante (Amarillo) */
.btn-adquirir-wa {
    display: block;
    width: 100%;
    background: var(--color-accent-yellow);
    color: var(--color-bg-dark);
    padding: 16px 25px;
    margin-top: 20px;
    border-radius: 4px;
    font-weight: 900;
    font-size: 1.1rem;
    letter-spacing: 1px;
    transition: all .3s ease;
    border: none;
    box-shadow: 0 5px 15px rgba(255, 195, 0, 0.8);
}

.btn-adquirir-wa:hover {
    background: #e6b200;
    box-shadow: 0 8px 20px rgba(255, 195, 0, 1);
    transform: scale(1.03);
}

/* ==================== PANELES DINÁMICOS (Detalles/Galería) ==================== */
.panel {
    background: #f0f0f0;
    border-radius: 4px;
    padding: 15px;
    margin-top: 15px;
    overflow: hidden;
    border-left: 5px solid var(--color-accent-yellow);
    color: var(--color-text-dark);
    font-size: 0.9rem;
}

.galeria {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 8px;
    padding: 5px;
}

.galeria img {
    width: 100%;
    height: 80px;
    object-fit: cover;
    border-radius: 2px;
    border: 1px solid var(--color-accent-yellow);
    opacity: 0.9;
    cursor: pointer; 
    transition: border 0.2s;
}

.galeria img:hover {
    border: 3px solid var(--color-accent-yellow);
    opacity: 1;
}

/* Clase para ocultar (usada por JS) */
.oculto {
    display: none !important;
}

/* ==================== FOOTER ==================== */
.footer-neon {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 50px;
    border-top: 5px solid var(--color-accent-yellow);
    box-shadow: 0 0 20px rgba(255, 195, 0, 0.4); 
}

.footer-text {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 1px;
}

/* ==================== LIGHTBOX / MODAL GALLERY (Máximo Brillo) ==================== */

.modal-gallery {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.98);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
}

.oculto-modal {
    display: none;
}

.contenido-modal {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    border: 5px solid var(--color-accent-yellow);
    box-shadow: 0 0 40px var(--color-accent-yellow);
    animation: zoomIn 0.3s;
}

/* Botón de Cierre (X) */
.cerrar-modal {
    position: absolute;
    top: 20px;
    right: 35px;
    color: var(--color-text-light);
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
    padding: 5px 15px;
    background: var(--color-bg-dark);
    border-radius: 4px;
    border: 2px solid var(--color-accent-yellow);
    line-height: 1;
    text-shadow: 0 0 10px var(--color-accent-yellow);
}

.cerrar-modal:hover,
.cerrar-modal:focus {
    color: var(--color-bg-dark);
    background: var(--color-accent-yellow);
    border-color: var(--color-accent-yellow);
    text-decoration: none;
    cursor: pointer;
    text-shadow: none;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 850px) {
    .catalogo {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

@media (max-width: 550px) {
    .logo-text {
        font-size: 1.4rem;
    }
    nav ul {
        flex-direction: column;
        gap: 8px;
    }
    .btn-contact {
        width: 100%;
        text-align: center;
    }
    .specs li {
        text-align: center;
    }
    .spec-label {
        min-width: auto;
        display: block;
        margin-right: 0;
    }
}

/* ============================================================
   VERSION NAVIDEÑA (ADICIONES SIN MODIFICAR LO ANTERIOR)
   ============================================================ */

/* Nieve cayendo sobre el sitio */
body::after {
    content: "";
    position: fixed;
    top: -100%;
    left: 0;
    width: 100%;
    height: 200%;
    pointer-events: none;
    z-index: 9999;
    background-image: 
        radial-gradient(circle at 20% 30%, white 1px, transparent 1px),
        radial-gradient(circle at 50% 10%, white 2px, transparent 2px),
        radial-gradient(circle at 80% 40%, white 1.5px, transparent 1.5px),
        radial-gradient(circle at 30% 60%, white 2px, transparent 2px);
    background-size: 300px 300px;
    animation: snowAnim 12s linear infinite;
    opacity: 0.5;
}

@keyframes snowAnim {
    0% { transform: translateY(0); }
    100% { transform: translateY(300px); }
}

/* Cambio de colores de acento a Rojo y Dorado */
header {
    border-bottom: 5px solid #D42426 !important;
    box-shadow: 0 0 20px rgba(212, 36, 38, 0.5) !important;
}

.logo-text {
    text-shadow: 0 0 8px #D42426 !important;
}

.logo-text::before {
    content: "🎅";
    position: absolute;
    top: -25px;
    left: -15px;
    font-size: 1.6rem;
    transform: rotate(-15deg);
}

.logo-text .highlight-neon {
    color: #FFD700 !important; /* Dorado */
}

/* Estilo navideño en tarjetas */
.maquinaria {
    border: 1px solid #165B33 !important; /* Verde Pino */
}

.maquinaria:hover {
    border: 2px solid #D42426 !important;
    box-shadow: 0 10px 30px rgba(212, 36, 38, 0.4) !important;
}

.maquinaria h2 {
    border-bottom: 2px solid #D42426 !important;
}

.spec-label {
    color: #D42426 !important;
}

.maquinaria::after {
    content: "🎄";
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.2rem;
    opacity: 0.4;
}

/* Botones Navideños */
.btn-adquirir-wa {
    background: #D42426 !important;
    color: white !important;
    box-shadow: 0 5px 15px rgba(212, 36, 38, 0.6) !important;
}

.btn-adquirir-wa:hover {
    background: #a31b1d !important;
    box-shadow: 0 8px 20px rgba(212, 36, 38, 0.8) !important;
}

.btn-toggle {
    border: 2px solid #165B33 !important;
    color: #FFD700 !important;
}

.btn-toggle:hover {
    background: #165B33 !important;
    color: white !important;
}

.footer-neon {
    border-top: 5px solid #FFD700 !important;
    background: #1a0000 !important;
}

.footer-text::before { content: "🎁 "; }
.footer-text::after { content: " 🎁"; }