:root {
    --bg-color: #0D0F14;           /* Negro Obsidiana principal */
    --surface-color: #151922;      /* Fondo de Header y Contenedor Grid */
    --pixel-bg: #1E2433;           /* Gris Grafito para pixeles vacíos */
    --pixel-border: #2A3246;       /* Borde sutil de cada pixel */
    --text-color: #F8FAFC;         /* Blanco puro para lectura limpia */
    --text-muted: #94A3B8;         /* Gris plata para subtítulos */
    --grid-gap: 6px;
    --onepixels-cyan: #00E5FF;     /* Cian Eléctrico principal */
    --onepixels-blue: #0088FF;     /* Azul neón secundario */
    --onepixels-glow: rgba(0, 229, 255, 0.35);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at 50% 0%, rgba(0, 229, 255, 0.08) 0%, transparent 60%);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    text-align: center;
    padding: 30px 20px 22px 20px;
    background: rgba(21, 25, 34, 0.9);
    backdrop-filter: blur(10px);
    width: 100%;
    border-bottom: 1px solid var(--pixel-border);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.5);
    margin-bottom: 24px;
    box-sizing: border-box;
}

/* Logo Header */
.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 6px;
}

.main-logo {
    height: 75px;
    width: auto;
    border-radius: 8px; 
    cursor: pointer;
    transition: transform 0.25s ease;
}

.main-logo:hover {
    transform: scale(1.03);
}

p.subtitle { 
    font-size: 1rem; 
    color: var(--text-muted); 
    margin: 5px 0 18px 0; 
}

/* Menú de Categorías */
.categories {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 800px;
    margin: 0 auto;
}

.filter-btn {
    padding: 7px 16px;
    border: 1px solid var(--pixel-border);
    background: var(--pixel-bg);
    color: var(--text-muted);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    font-size: 0.85rem;
}

.filter-btn.active, .filter-btn:hover {
    background: linear-gradient(135deg, var(--onepixels-cyan), var(--onepixels-blue));
    color: #0D0F14;
    border-color: transparent;
    font-weight: 700;
    box-shadow: 0 0 15px var(--onepixels-glow);
}

/* ---------------------------------------------------
   AJUSTES RESPONSIVE (EL GRID)
   --------------------------------------------------- */
.grid-container {
    display: grid;
    gap: var(--grid-gap);
    background: var(--surface-color);
    padding: 14px;
    border-radius: 14px;
    border: 1px solid var(--pixel-border);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 229, 255, 0.04);
    margin-bottom: 50px;
    width: 100%;
    max-width: 1000px;
    box-sizing: border-box;
    
    /* Celulares: 3 columnas */
    grid-template-columns: repeat(3, 1fr); 
}

/* Tablets: 5 columnas */
@media (min-width: 600px) {
    .grid-container {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* Escritorio: 10 columnas */
@media (min-width: 900px) {
    .grid-container {
        grid-template-columns: repeat(10, 1fr);
    }
}

/* Diseño de cada Pixel */
.pixel {
    aspect-ratio: 1 / 1; /* Cuadrados perfectos */
    background-color: var(--pixel-bg);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.22s ease;
    position: relative;
    box-sizing: border-box;
    padding: 4px;
    text-align: center;
    border: 1px solid var(--pixel-border);
    overflow: hidden;
}

.pixel:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 18px rgba(0, 229, 255, 0.28);
    z-index: 10;
    opacity: 1 !important;
    border-color: var(--onepixels-cyan);
    background-color: #252E42; 
}

/* Estilo para los pixeles DISPONIBLES */
.pixel.available {
    color: #475569;
}

.pixel-brand-logo {
    width: 60%;
    height: auto;
    opacity: 0.25; 
    transition: all 0.3s ease;
    border-radius: 4px;
    pointer-events: none; 
    filter: brightness(1.3);
}

.pixel.available:hover .pixel-brand-logo { 
    opacity: 0.95; 
    transform: scale(1.15); 
    filter: drop-shadow(0 0 6px var(--onepixels-glow));
}

.pixel.available:hover .pixel-number { 
    background: var(--onepixels-cyan); 
    color: #0D0F14; 
}

/* Número indicador en la esquina */
.pixel-number {
    position: absolute;
    top: 4px;
    right: 4px;
    font-size: 0.55rem;
    color: var(--text-muted);
    font-weight: bold;
    background: rgba(13, 15, 20, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    padding: 1px 4px;
    transition: all 0.2s;
    z-index: 2; 
    pointer-events: none;
}

/* Pixel Ocupado */
.pixel.taken {
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.pixel.taken .pixel-number {
    background: rgba(0, 0, 0, 0.35);
    color: white;
    border: none;
}

.pixel.taken i {
    font-size: clamp(1rem, 5vw, 1.5rem);
    margin-bottom: 4px;
    pointer-events: none;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.25));
}

.pixel.taken span.pixel-name {
    font-size: clamp(0.55rem, 2.5vw, 0.75rem);
    line-height: 1.1;
    font-weight: 700;
    text-transform: uppercase;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    pointer-events: none;
    word-break: break-word;
    width: 100%;
    text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

/* Colores dinámicos vibrantes por categoría sobre fondo oscuro */
.pixel.taken[data-categoria="salud"]   { background: linear-gradient(135deg, #10B981, #059669); }
.pixel.taken[data-categoria="oficios"] { background: linear-gradient(135deg, #F59E0B, #D97706); }
.pixel.taken[data-categoria="ropa"]    { background: linear-gradient(135deg, #00C6FF, #0072FF); }
.pixel.taken[data-categoria="comida"]  { background: linear-gradient(135deg, #F43F5E, #E11D48); }

/* Modal (Pop-up Avanzado en Modo Oscuro) */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(6, 8, 12, 0.82);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px;
}

.modal {
    background: #161B26;
    border: 1px solid var(--pixel-border);
    border-radius: 16px;
    width: 100%;
    max-width: 380px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 229, 255, 0.12);
    animation: modalFadeIn 0.3s ease;
    display: flex;
    flex-direction: column;
}

@keyframes modalFadeIn { 
    from { opacity: 0; transform: translateY(20px); } 
    to { opacity: 1; transform: translateY(0); } 
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
    width: 32px; height: 32px;
    display: flex; justify-content: center; align-items: center;
    border-radius: 50%;
    z-index: 10;
    transition: all 0.2s;
}

.close-btn:hover { 
    background: var(--onepixels-cyan); 
    color: #0D0F14;
}

/* Contenido del Modal */
.modal-header {
    text-align: center;
    padding: 20px 20px 10px 20px;
}

.modal-header .modal-icon {
    color: var(--onepixels-cyan);
    font-size: 2rem;
    margin-bottom: 5px;
}

.modal-header h2 { 
    margin: 0; 
    color: #FFFFFF; 
    font-size: 1.25rem; 
}

.modal-header p.sub { 
    margin: 4px 0 0 0; 
    color: var(--text-muted); 
    font-size: 0.85rem; 
    font-weight: 500; 
}

.modal-image-container {
    width: 100%;
    height: 340px;
    background: #0D0F14;
    position: relative;
    padding: 10px;
    box-sizing: border-box;
}

.modal-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.modal-body {
    padding: 15px 20px 20px 20px;
    text-align: center;
}

.modal-body p.desc {
    font-size: 0.9rem;
    color: #CBD5E1;
    line-height: 1.5;
    margin-bottom: 20px;
}

/* Botones de Acción */
.modal-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.btn-action {
    flex: 1;
    padding: 11px;
    border-radius: 8px;
    text-decoration: none;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-action:hover { 
    filter: brightness(1.1); 
    transform: translateY(-1px);
}

.btn-call { background-color: #0077FF; }
.btn-wa   { background-color: #25D366; color: #081C0F; }
.btn-buy  { 
    background: linear-gradient(135deg, var(--onepixels-cyan), var(--onepixels-blue)); 
    color: #0D0F14; 
    width: 100%; 
    box-shadow: 0 4px 15px var(--onepixels-glow);
}

/* Mapa Simulado */
.modal-map {
    width: 100%;
    height: 100px;
    background: #1E2433 url('https://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Google_Maps_Logo_2020.svg/1024px-Google_Maps_Logo_2020.svg.png') no-repeat center;
    background-size: 30px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--pixel-border);
}

.modal-map iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.map-pin {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    color: #ea4335;
    font-size: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    pointer-events: none;
}

.location-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

/* Ajustes extra para celulares muy pequeños */
@media (max-width: 380px) {
    .grid-container { 
        gap: 4px; 
        padding: 8px; 
    } 
    .pixel.taken span.pixel-name {
        font-size: 0.5rem;
    }
}