/* ============================================================
   ESTILOS GENERALES Y MODERNOS
   ============================================================ */

:root {
    --bg-page: #101217;
    --bg-card: rgba(30, 36, 48, 0.6);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    
    --accent-green: #38bdf8;
    --accent-blue: #0ea5e9;
    --color-warning-orange: #fb923c;
    --color-danger-red: #f87171;

    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(12px);

    --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

body {
    background-color: var(--bg-page);
    background-image: radial-gradient(at top left, #1a202e 0%, var(--bg-page) 100%);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ============================================================
   BARRA DE NAVEGACIÓN Y LOGOTIPO
   ============================================================ */

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 3rem;
    background-color: rgba(16, 18, 23, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Estilos del logotipo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 40px;           
    height: 40px;          
    object-fit: cover;     
    border-radius: 50%;    
}

.logo-text {
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--text-primary); 
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 4px;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-green);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* ============================================================
   ESTILOS DEL BUSCADOR
   ============================================================ */

.search-container {
    flex: 1;
    max-width: 400px;
    margin: 0 2rem;
}

#searchInput {
    width: 100%;
    padding: 10px 20px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.3s ease;
}

#searchInput::placeholder {
    color: var(--text-secondary);
}

#searchInput:focus {
    border-color: var(--accent-green);
    background-color: rgba(0, 0, 0, 0.5);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.15);
}

/* ============================================================
   CONTENIDO PRINCIPAL Y CUADRÍCULA
   ============================================================ */

.container {
    padding: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
}

.highlight {
    color: var(--accent-green);
    font-weight: 200;
    font-size: 3rem;
    margin-right: 12px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 2rem;
}

.no-results-msg {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-top: 3rem;
    width: 100%;
    grid-column: 1 / -1; 
}

/* ============================================================
   DISEÑO DE TARJETAS
   ============================================================ */

.card {
    background-color: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(40px);
}

.card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card-header {
    height: 200px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    overflow: hidden;
    background: linear-gradient(135deg, rgba(26,32,46,1) 0%, rgba(38,45,58,0.5) 100%);
}

.bg-blue { background: radial-gradient(circle at center, rgba(14,165,233,0.15) 0%, rgba(26,32,46,1) 70%); }
.bg-dark-blue { background: radial-gradient(circle at center, rgba(30,41,59,0.2) 0%, rgba(16,18,23,1) 70%); }

.center-img {
    max-height: 140px;
    max-width: 80%;
    object-fit: contain;
    filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.1));
    transition: transform 0.3s ease;
}

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

.badge {
    position: absolute;
    top: 12px;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 11px;
    color: white;
    font-weight: bold;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.badge-yt { background-color: rgba(239, 68, 68, 0.8); left: 12px; }
.badge-dl { background-color: rgba(34, 197, 94, 0.8); right: 12px; }

.card-body {
    padding: 2rem;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    line-height: 1.2;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    min-height: 50px; 
}

.text-red {
    color: var(--color-danger-red);
    font-weight: 600;
    display: inline-block;
    background-color: rgba(248, 113, 113, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.text-orange {
    color: var(--color-warning-orange);
    background-color: rgba(251, 146, 60, 0.1);
    padding: 6px 12px;
    border-radius: 8px;
    font-weight: 500;
}

.card-buttons {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    flex: 1;
}

.btn-green {
    background-color: var(--accent-green);
    color: #000;
    box-shadow: 0 2px 6px rgba(56, 189, 248, 0.2);
}

.btn-green:hover {
    background-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(255, 255, 255, 0.1);
}

.btn-black {
    background-color: #000;
    color: white;
    border: 1px solid var(--glass-border);
}

.btn-black:hover {
    background-color: #1a1e27;
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.card-actions {
    display: flex;
    justify-content: flex-start;
    gap: 10px;
    padding-top: 1rem;
    border-top: 1px solid var(--glass-border);
}

.icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    font-weight: bold;
    font-size: 0.9rem;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
    background-color: transparent;
    color: var(--text-secondary);
}

.btn-action-green:hover { background-color: rgba(34, 197, 94, 0.1); color: rgb(34, 197, 94); border-color: rgb(34, 197, 94); }
.btn-action-blue:hover { background-color: rgba(14, 165, 233, 0.1); color: rgb(14, 165, 233); border-color: rgb(14, 165, 233); }
/* ============================================================
   BANNER PROMOCIONAL FLOTANTE (MERCADO LIBRE)
   ============================================================ */
.promo-banner {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 320px;
    background-color: var(--bg-card); /* Usa tu mismo fondo de cristal */
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--accent-green); /* Borde con tu color de acento */
    border-radius: 12px;
    padding: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.close-banner {
    position: absolute;
    top: 5px;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

.close-banner:hover {
    color: var(--color-danger-red);
}

.promo-content {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 5px;
}

.promo-img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 8px;
    background-color: white; /* Fondo blanco por si la imagen tiene transparencias */
    padding: 2px;
}

.promo-text h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.promo-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.3;
}

.btn-promo {
    display: inline-block;
    background-color: #ffe600; /* Amarillo Mercado Libre */
    color: #2d3277; /* Azul Mercado Libre */
    font-size: 0.85rem;
    font-weight: 800;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    transition: transform 0.2s;
    text-align: center;
}

.btn-promo:hover {
    transform: scale(1.05);
}
/* ============================================================
   DISEÑO RESPONSIVO (MÓVILES Y TABLETS)
   ============================================================ */
@media (max-width: 768px) {
    /* 1. Ajuste del Navbar para que no se desborde */
    .navbar {
        flex-direction: column;
        padding: 1rem;
        gap: 15px;
        text-align: center;
    }

    /* 2. Márgenes más pequeños para aprovechar la pantalla */
    .container {
        padding: 1.5rem;
    }

    /* 3. Textos de la guía más amigables para lectura en celular */
    .page-title {
        font-size: 2rem;
    }

    .guide-section {
        padding: 1.5rem;
    }

    /* 4. Banner de Mercado Libre (centrado y ancho completo) */
    .promo-banner {
        width: calc(100% - 40px); /* 100% menos los márgenes */
        bottom: 10px;
        right: 20px;
        left: 20px;
        box-sizing: border-box;
    }

    /* 5. Tarjetas: Asumiendo que usas CSS Grid o Flex para tus cards */
    .cards-grid, .grid-container {
        grid-template-columns: 1fr; /* Una sola columna en celular */
        gap: 1.5rem;
    }

    /* 6. Botones apilados para que sean fáciles de tocar con el dedo */
    .card-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn {
        width: 100%;
    }

    /* 7. Botones de YouTube y Telegram al final de la guía */
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-red, .btn-telegram {
        width: 100%;
        justify-content: center;
    }
}