/* Reset y base */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --color-bg: #FFFFFF;
            --color-bg-light: #F9FAFB;
            --color-bg-hero: #FAFAFA;
            --color-text: #374151;           /* gris oscuro profesional */
            --color-text-secondary: #4B5563; /* gris medio */
            --color-border: #E5E7EB;
            --color-accent: #374151;
            --color-youtube: #FF0000;
        }

        body {
            font-family: 'Lato', 'Helvetica Neue', sans-serif;
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            font-weight: 400;
        }

        /* Tipografía */
        h1, h2, h3, h4, h5, h6 {
            font-family: 'Playfair Display', 'Times New Roman', serif;
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 1rem;
        }

        h1 {
            font-size: 3.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        h2 {
            font-size: 2.25rem;
        }

        h3 {
            font-size: 1.5rem;
        }

        p {
            margin-bottom: 1.25rem;
            max-width: 65ch;
        }

        /* Contenedor */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* Header */
        header {
            background-color: var(--color-bg);
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--color-border);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            text-decoration: none;
            color: var(--color-text);
        }

        .logo-image {
            width: 96px;
            height: 90px;
            background-image: url('../img/logo-eudaimanya.png');
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }

        .logo-text {
            font-family: 'Playfair Display', serif;
            font-size: 2rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        /* Dropdown de categorías */
        .dropdown {
            position: relative;
            display: inline-block;
        }

        .dropdown-toggle {
            text-decoration: none;
            color: var(--color-text);
            font-weight: 600;
            font-size: 1.125rem;
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .dropdown-toggle:hover {
            color: var(--color-accent);
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            border: 1px solid var(--color-border);
            border-radius: 6px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            min-width: 200px;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px);
            transition: all 0.2s ease;
            padding: 0.5rem 0;
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-menu a {
            display: block;
            padding: 0.5rem 1.25rem;
            color: var(--color-text-secondary);
            text-decoration: none;
            font-size: 0.9375rem;
            transition: background 0.2s, color 0.2s;
        }

        .dropdown-menu a:hover {
            background-color: var(--color-bg-light);
            color: var(--color-accent);
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: flex-end;
            align-items: center;
        }

        nav a:not(.dropdown-toggle) {
            text-decoration: none;
            color: var(--color-text);
            font-weight: 600;
            font-size: 1.125rem;
            transition: color 0.2s ease;
        }

        nav a:not(.dropdown-toggle):hover {
            color: var(--color-accent);
        }

        /* Hero - ahora es solo texto, sin imagen */
        .hero {
            padding: 6rem 0;
            background-color: var(--color-bg-hero);
            text-align: center;
        }

        .hero-content {
            max-width: 750px;
            margin: 0 auto;
        }

        .hero h1 {
            margin-bottom: 1.5rem;
            color: var(--color-text);
            font-size: 2.75rem;
        }

        .hero p {
            font-size: 1.125rem;
            color: var(--color-text-secondary);
            margin-bottom: 2.5rem;
            max-width: 65ch;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            padding: 0.875rem 2rem;
            border-radius: 6px;
            font-family: 'Lato', sans-serif;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.2s ease;
            cursor: pointer;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: white;
            border: 2px solid var(--color-accent);
        }

        .btn-primary:hover {
            background-color: #272f3b;
            border-color: #272f3b;
        }

        .btn-youtube {
            background-color: var(--color-youtube);
            color: white;
            border: 2px solid var(--color-youtube);
        }

        .btn-youtube:hover {
            background-color: #cc0000;
            border-color: #cc0000;
        }

        /* Secciones */
        section {
            padding: 6rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-header h2 {
            position: relative;
            display: inline-block;
            padding-bottom: 1rem;
        }

        .section-header h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 2px;
            background-color: var(--color-border);
        }

        /* Libros destacados - uno por categoría */
        .books-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 2.5rem;
        }

        .book-card {
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 2rem;
            background-color: var(--color-bg);
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }

        .book-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .book-category {
            font-size: 0.875rem;
            color: var(--color-text-secondary);
            letter-spacing: 1px;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .book-title {
            font-size: 1.25rem;
            margin-bottom: 1rem;
            color: var(--color-text);
        }

        .book-description {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            margin-bottom: 1.5rem;
        }

        .book-link {
            color: var(--color-accent);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9375rem;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }

        .book-link:after {
            content: '→';
            font-size: 1rem;
        }

        /* Sobre EUDAIMANYA */
        .about-content {
            max-width: 700px;
            margin: 0 auto;
            text-align: center;
        }

        .about-text {
            margin-bottom: 1.5rem;
            font-size: 1.125rem;
        }

        /* Footer */
        footer {
            background-color: var(--color-bg);
            border-top: 1px solid var(--color-border);
            padding: 4rem 0 2rem;
        }

        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }

        .footer-logo {
            font-family: 'Playfair Display', serif;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--color-text);
            text-decoration: none;
            margin-bottom: 1rem;
        }

        .footer-links {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .footer-links a {
            color: var(--color-text-secondary);
            text-decoration: none;
            font-size: 0.9375rem;
            transition: color 0.2s ease;
        }

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

        .footer-copyright {
            color: var(--color-text-secondary);
            font-size: 0.875rem;
            text-align: center;
            width: 100%;
        }

        /* Responsive */
        @media (max-width: 992px) {
            h1 {
                font-size: 2.5rem;
            }

            .hero h1 {
                font-size: 2.25rem;
            }

            .books-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }

            .logo {
                gap: 0.75rem;
            }

            .logo-image {
                width: 60px;
                height: 60px;
            }

            .logo-text {
                font-size: 1.5rem;
            }

            nav ul {
                justify-content: flex-start;
                width: 100%;
                padding-top: 1rem;
                gap: 1rem;
            }

            .hero {
                padding: 4rem 0;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

            section {
                padding: 4rem 0;
            }

            .section-header h2 {
                font-size: 1.75rem;
            }

            .books-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 2rem;
            }

            .hero h1 {
                font-size: 1.75rem;
            }

            .container {
                padding: 0 1.5rem;
            }
        }