:root {
    --bg-main: #0c1017;
    --bg-card: #161b26;
    --bg-card-hover: #1f2636;
    --border-color: #273142;
    
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    
    --blue-accent: #2563eb;
    --green-accent: #10b981;
    --red-accent: #ef4444;
    --purple-accent: #8b5cf6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
}

/* NAVBAR */
.navbar {
    background-color: rgba(22, 27, 38, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.8rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--blue-accent);
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 15px;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-item:hover, .nav-item.active {
    color: var(--blue-accent);
}

/* HERO SECTION / BANNER CON IMAGEN DE FONDO LOCAL */
.hero-section {
    position: relative;
    padding: 4rem 1.5rem 3rem;
    text-align: center;
    /* RUTA DE LA IMAGEN DE FONDO DE LA CARPETA */
    background: url('fondo.jpg') center/cover no-repeat;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

/* Capa oscura para oscurecer la imagen y que el texto resalte */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(12, 16, 23, 0.82);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 2.3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.subtitle {
    color: #a3adc2;
    font-size: 1rem;
    margin-bottom: 2rem;
}

/* FILTROS */
.filter-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.filter-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    border-color: var(--text-secondary);
}

.filter-btn.active {
    background-color: var(--blue-accent);
    border-color: var(--blue-accent);
    color: #ffffff;
}

.filter-btn.btn-opti.active {
    background-color: var(--green-accent);
    border-color: var(--green-accent);
}

.filter-btn.btn-ale.active {
    background-color: var(--red-accent);
    border-color: var(--red-accent);
}

/* MAIN CONTAINER */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

.platform-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: start;
}

@media (max-width: 1100px) {
    .platform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 650px) {
    .platform-grid {
        grid-template-columns: 1fr;
    }
}

.platform-column {
    background-color: rgba(22, 27, 38, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.2rem;
}

.column-header h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-icon {
    width: 22px;
    height: 22px;
}

.icon-blue { color: var(--blue-accent); }
.icon-green { color: var(--green-accent); }
.icon-red { color: var(--red-accent); }
.icon-purple { color: var(--purple-accent); }

.pc-col .column-header h2 { border-bottom-color: var(--blue-accent); }
.android-col .column-header h2 { border-bottom-color: var(--green-accent); }
.console-col .column-header h2 { border-bottom-color: var(--red-accent); }
.extra-col .column-header h2 { border-bottom-color: var(--purple-accent); }

.cards-wrapper {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

/* TARJETAS */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.card.hidden {
    display: none !important;
}

.card:hover {
    transform: translateY(-3px);
    border-color: #3b475c;
    background-color: var(--bg-card-hover);
}

.card-badge-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tag {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.tag-blue { background-color: rgba(37, 99, 235, 0.2); color: #60a5fa; }
.tag-green { background-color: rgba(16, 185, 129, 0.2); color: #34d399; }
.tag-red { background-color: rgba(239, 68, 68, 0.2); color: #f87171; }
.tag-purple { background-color: rgba(139, 92, 246, 0.2); color: #c084fc; }

.badge {
    font-size: 0.7rem;
    font-weight: 800;
    color: #0d1117;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
}

.badge-mod { background-color: #f59e0b; }
.badge-zip { background-color: #38bdf8; }
.badge-apk { background-color: #34d399; }
.badge-iso { background-color: #f87171; }

.card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

.description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-grow: 1;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.5rem;
    padding-top: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.author {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.btn-download {
    background-color: var(--blue-accent);
    color: #ffffff;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    transition: opacity 0.2s;
}

.btn-download:hover {
    opacity: 0.88;
}

.btn-green { background-color: var(--green-accent); }
.btn-red { background-color: var(--red-accent); }
.btn-purple { background-color: var(--purple-accent); }

.footer {
    text-align: center;
    padding: 2rem 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
}