/* DiarioExpress - Original Theme CSS */
:root {
            --bg-color: #F8F9FA;
            --text-main: #1A1A1A;
            --text-muted: #6C757D;
            --accent-color: #FF4F00; /* Naranja Internacional */
            --grid-gap: 24px;
            --border-light: 1px solid #DEE2E6;
        }

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

        body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            line-height: 1.4;
            -webkit-font-smoothing: antialiased;
        }

        /* SISTEMA DE GRID ESTRICTO DE 12 COLUMNAS */
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--grid-gap);
        }

        .grid-12 {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: var(--grid-gap);
        }

        /* HEADER (Sin Logo) */
        header {
            border-bottom: var(--border-light);
            padding: 1.5rem 0;
            margin-bottom: 3rem;
        }

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

        nav ul {
            list-style: none;
            display: flex;
            gap: 2rem;
        }

        nav a {
            text-decoration: none;
            color: var(--text-main);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        nav a:hover {
            color: var(--accent-color);
        }

        .search-login {
            font-size: 0.9rem;
            font-weight: bold;
            color: var(--accent-color);
            text-decoration: none;
        }

        /* TOP SECTION: División Matemática 6 / 6 */
        .hero-section {
            margin-bottom: 4rem;
        }

        .hero-text {
            grid-column: span 5;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding-right: 2rem;
        }

        .hero-tag {
            color: var(--accent-color);
            font-weight: bold;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1rem;
        }

        .hero-text h1 {
            font-size: clamp(2.5rem, 4vw, 4.5rem);
            font-weight: 700;
            line-height: 1.05;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }

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

        .hero-image {
            grid-column: span 7;
            background-color: #E0E0E0; /* Placeholder: Usar foto limpia/arquitectónica */
            min-height: 500px;
            width: 100%;
            object-fit: cover;
        }

        /* MID SECTION: Listas Limpias (4 / 4 / 4) */
        .mid-section {
            border-top: var(--border-light);
            border-bottom: var(--border-light);
            padding: 3rem 0;
            margin-bottom: 4rem;
        }

        .list-block {
            grid-column: span 4;
        }

        .list-block h3 {
            font-size: 0.9rem;
            text-transform: uppercase;
            color: var(--text-muted);
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
            border-bottom: 2px solid var(--text-main);
            padding-bottom: 0.5rem;
            display: inline-block;
        }

        .numbered-list {
            list-style-type: none;
            counter-reset: swiss-counter;
        }

        .numbered-list li {
            position: relative;
            padding-left: 2rem;
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
            font-weight: 500;
        }

        .numbered-list li::before {
            counter-increment: swiss-counter;
            content: "0" counter(swiss-counter);
            position: absolute;
            left: 0;
            top: 2px;
            font-size: 0.85rem;
            color: var(--accent-color);
            font-weight: bold;
        }

        /* GRID SECTION: Tarjetas Estándar (4 / 4 / 4) */
        .cards-section {
            margin-bottom: 4rem;
        }

        .card {
            grid-column: span 4;
            display: flex;
            flex-direction: column;
        }

        .card-img {
            width: 100%;
            aspect-ratio: 4/3;
            background-color: #E0E0E0;
            margin-bottom: 1rem;
        }

        .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.5rem;
        }

        .card h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.2;
        }

        .card p {
            font-size: 1rem;
            color: var(--text-muted);
        }

        /* FOOTER */
        footer {
            background-color: var(--text-main);
            color: #FFFFFF;
            padding: 4rem 0;
            margin-top: auto;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-links a {
            color: #FFFFFF;
            text-decoration: none;
            margin-right: 1.5rem;
            font-size: 0.9rem;
            opacity: 0.7;
            transition: opacity 0.2s;
        }

        .footer-links a:hover {
            opacity: 1;
            color: var(--accent-color);
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero-text { grid-column: span 12; padding-right: 0; margin-bottom: 2rem; }
            .hero-image { grid-column: span 12; min-height: 400px; }
            .list-block, .card { grid-column: span 6; }
        }

        @media (max-width: 768px) {
            .list-block, .card { grid-column: span 12; }
            nav ul { display: none; /* Simplificación para móvil */ }
        }