:root {
    --bg-dark: #05070a;
    --card-bg: #0f121a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --danger: #ef4444;
    --success: #22c55e;
    --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
    --font-main: 'Outfit', sans-serif;
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

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

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 800;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem !important;
        line-height: 1.2;
    }
}

h2 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    h2 {
        font-size: 1.8rem !important;
    }
}

p {
    margin-bottom: 20px;
}

/* Global Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-blue) !important;
}

.nav-links .btn {
    padding: 8px 20px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1100;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
    transition: 0.3s;
}

/* Hero Section */
header {
    height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* CTA Buttons */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.4);
}

/* Product Cards */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 20px 0 50px 0;
}

/* Category Filters */
.category-filters {
    display: flex;
    flex-wrap: wrap; /* UX Responsiva y Escalable para múltiples categorías */
    gap: 15px;
    margin-bottom: 40px;
    justify-content: center;
}

.filter-btn {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 10px 25px;
    border-radius: 30px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.filter-btn:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}

.filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.product-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease, opacity 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

/* Editorial Blocks (Categories) */
.editorial-container {
    margin: 60px 0 80px 0;
    padding: 60px;
    background: var(--card-bg);
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,0.05);
}

.editorial-columns {
    column-count: 2;
    column-gap: 50px;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.9;
}

@media (max-width: 992px) {
    .editorial-columns {
        column-count: 1;
    }
}

@media (max-width: 768px) {
    .editorial-container {
        padding: 30px;
        margin: 40px 0;
    }
}

/* Breadcrumbs */
.breadcrumbs {
    padding: 20px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 80px; /* Separación del nav fijo */
}

@media (max-width: 768px) {
    .breadcrumbs {
        margin-top: 100px;
    }
}

.breadcrumbs a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.3s;
}

.breadcrumbs a:hover {
    color: #fff;
}

.breadcrumbs span {
    margin: 0 10px;
    opacity: 0.5;
}

/* Footer Improvements */
.main-footer {
    padding: 80px 0 40px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: #05070a;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-about h4, .footer-links h4 {
    color: #fff;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.3s;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.affiliate-disclosure {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 25px;
    background: rgba(255,255,255,0.02);
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.05);
    margin-top: 30px;
}

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

.product-card.hidden {
    display: none;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
}

.product-image {
    width: 100%;
    height: 250px;
    background-color: #1e2532;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--gradient-primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.product-info {
    padding: 24px;
}

.product-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent-blue);
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    display: block;
}

.product-card h3 {
    margin-bottom: 12px;
    font-size: 1.4rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: block;
}

.amazon-btn {
    background: #ff9900;
    color: #111;
    display: block;
    text-align: center;
    padding: 12px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.3s ease;
}

.amazon-btn:hover {
    background: #e68a00;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: linear-gradient(to bottom, var(--bg-dark), #0a0d14);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border-radius: 15px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.02);
}

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-out;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.faq-item.active .faq-answer {
    padding: 10px 25px 25px 25px;
    max-height: 200px;
}

.faq-item.active .faq-question {
    color: var(--accent-blue);
}

/* Tracking Overlay (Admin Only View Simulation) */
#tracking-status {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0,0,0,0.8);
    color: var(--success);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-family: monospace;
    border: 1px solid var(--success);
    z-index: 1000;
    display: none;
}

/* Comparison Table */
.comparison-table {
    border-radius: 20px;
    background: rgba(255,255,255,0.02);
    /* Se elimina overflow:hidden para permitir que los botones floten dentro del scroll en móvil */
}

.comparison-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    align-items: center;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.comparison-header {
    background: rgba(255,255,255,0.05);
    padding: 20px;
    font-weight: 700;
}

.comparison-item {
    padding: 25px;
}

.comparison-product-col {
    text-align: left;
    display: flex;
    align-items: center;
    gap: 15px;
}

.comparison-product-col img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 10px;
}

/* Responsive */
@media (max-width: 992px) {
    .container { padding: 0 15px; }
    .hero-content h1 { font-size: 2.8rem; }
    
    /* Responsive Comparison Table: Scroll horizontal o tarjetas */
    .comparison-table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -15px; /* Compensa el padding del container */
        padding: 0 15px;
    }
    .comparison-table {
        min-width: 850px; /* Fuerza el ancho total para activar el swipe nativo */
    }
    .comparison-row {
        min-width: 850px; /* Asegura que no colapse */
    }
    /* Comportamiento Sticky para asegurar el nombre del producto siempre visible */
    .comparison-row > div:first-child {
        position: sticky;
        left: 0;
        background: var(--card-bg); /* Oculta columnas que pasen por debajo */
        z-index: 10;
        border-right: 1px solid rgba(255,255,255,0.05);
        box-shadow: 10px 0 15px -5px rgba(0,0,0,0.5);
    }
    .comparison-header > div:first-child {
        background: rgba(15, 18, 26, 0.95);
        backdrop-filter: blur(10px);
    }
}

@media (max-width: 768px) {
    header { height: auto; padding: 140px 0 80px 0; flex-direction: column; text-align: center; }
    .hero-content { margin: 0 auto; }
    .hero-content h1 { font-size: 2.2rem; }
    .hero-overlay { display: none; }
    .hero-btns .btn { display: block; width: 100%; margin: 10px 0 !important; }
    
    /* Menu Hamburguesa */
    .menu-toggle { display: block; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--card-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.4s;
        box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    }
    .nav-links.active { right: 0; }

    /* Rediseño UX Tabla Comparativa Móvil (Card Layout en lugar de Scroll) */
    .comparison-table-wrapper {
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }
    .comparison-table {
        min-width: 100%;
        background: transparent;
        border-radius: 0;
    }
    .comparison-header {
        display: none; /* Ocultar cabeceras en móvil */
    }
    .comparison-row.comparison-item {
        display: flex;
        flex-direction: column;
        min-width: 100%;
        padding: 25px;
        background: var(--card-bg);
        border: 1px solid rgba(255,255,255,0.05);
        border-radius: 20px;
        margin-bottom: 25px;
        gap: 15px;
    }
    .comparison-row > div:first-child {
        position: static;
        box-shadow: none;
        border-right: none;
        left: auto;
        background: transparent;
        margin-bottom: 15px;
    }
    .comparison-item > div:nth-child(2)::before {
        content: "Rendimiento: ";
        font-weight: normal;
        color: var(--text-secondary);
        font-size: 0.9rem;
    }
    .comparison-item > div:nth-child(3)::before {
        content: "Precio: ";
        font-weight: normal;
        color: var(--text-secondary);
        font-size: 0.9rem;
    }
    .comparison-item > div:nth-child(4) {
        width: 100%;
        margin-top: 15px;
    }
    .comparison-item .amazon-btn {
        width: 100%;
        padding: 15px; /* Botón más grande y clickeable en móvil */
        font-size: 1.1rem;
    }
    
    .products-grid { grid-template-columns: 1fr; }
    
    /* Product sheet grid adjustment */
    .product-hero { grid-template-columns: 1fr !important; text-align: center; }
    .pros-cons { grid-template-columns: 1fr !important; }
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(15, 18, 26, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 25px 35px;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    max-width: 1100px;
    margin: 0 auto;
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { transform: translateY(100%) scale(0.9); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

.cookie-content p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.cookie-content a {
    color: var(--accent-blue);
    text-decoration: underline;
    font-weight: 600;
}

.cookie-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 12px 25px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: 0.3s;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 992px) {
    .cookie-banner {
        flex-direction: column;
        text-align: center;
        bottom: 15px;
        left: 15px;
        right: 15px;
        padding: 25px;
        gap: 20px;
    }
    .cookie-actions {
        width: 100%;
        flex-direction: column;
    }
    .cookie-actions button, .cookie-actions .btn {
        width: 100%;
    }
}

/* ===================================================
   AUTHOR BYLINE — E-E-A-T Signal (2026)
   =================================================== */
.author-byline {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    background: rgba(56, 189, 248, 0.05);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: 14px;
    margin: 20px 0 35px 0;
    transition: border-color 0.3s;
}
.author-byline:hover {
    border-color: rgba(56, 189, 248, 0.3);
}
.author-avatar-img {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}
.author-byline-info {
    flex: 1;
}
.author-byline-name {
    font-size: 0.95rem;
    color: var(--text-primary);
}
.author-byline-name strong {
    color: var(--accent-blue);
}
.author-byline-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 3px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.author-byline-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.author-byline-badge {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid rgba(56, 189, 248, 0.2);
}
.author-byline-link {
    font-size: 0.8rem;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    flex-shrink: 0;
    transition: opacity 0.2s;
}
.author-byline-link:hover { opacity: 0.7; }

@media (max-width: 600px) {
    .author-byline { flex-wrap: wrap; }
    .author-byline-meta { gap: 8px; }
}

/* ===================================================
   TEST DATA BLOCK — GEO Citability Signal
   =================================================== */
.test-data-block {
    background: rgba(34, 197, 94, 0.04);
    border: 1px solid rgba(34, 197, 94, 0.15);
    border-radius: 14px;
    padding: 24px 28px;
    margin: 30px 0;
}
.test-data-block h4 {
    font-size: 1rem;
    color: var(--success);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.test-data-block ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.test-data-block ul li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    padding-left: 18px;
    position: relative;
    line-height: 1.5;
}
.test-data-block ul li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--success);
}
.test-data-block ul li strong {
    color: var(--text-primary);
}

@media (max-width: 600px) {
    .test-data-block ul { grid-template-columns: 1fr; }
}

/* glass nav utility */
.glass {
    background: rgba(15, 18, 26, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

/* ===================================================
   NAV DROPDOWN — Guías de Compra
   =================================================== */
.nav-dropdown {
    position: relative;
}

/* El botón del dropdown hereda los estilos .btn .btn-primary */
.nav-dropdown > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    user-select: none;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    background: rgba(15, 18, 26, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 8px;
    min-width: 230px;
    list-style: none;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(56,189,248,0.05);
    /* Oculto por defecto */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    z-index: 1100;
}

/* Triángulo decorativo */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 24px;
    width: 12px;
    height: 12px;
    background: rgba(15, 18, 26, 0.97);
    border-left: 1px solid rgba(255,255,255,0.08);
    border-top: 1px solid rgba(255,255,255,0.08);
    transform: rotate(45deg);
}

/* Mostrar en hover — desktop */
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
    -webkit-text-fill-color: unset !important;
}

.dropdown-menu li a:hover {
    background: rgba(56,189,248,0.08);
    color: #fff !important;
}

/* Separador línea entre items */
.dropdown-menu li + li {
    border-top: 1px solid rgba(255,255,255,0.04);
}

/* === Dropdown en Mobile (menú hamburguesa) === */
@media (max-width: 768px) {
    /* En mobile el dropdown se integra en el menú vertical */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: rgba(255,255,255,0.03);
        border: none;
        border-radius: 12px;
        box-shadow: none;
        margin-top: 8px;
        padding: 4px;
        min-width: unset;
        width: 100%;
        max-width: 260px;
    }
    .dropdown-menu::before { display: none; }
    .nav-dropdown > a {
        justify-content: center;
    }
    .dropdown-menu li a {
        justify-content: center;
        font-size: 0.85rem;
    }
}