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

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: #f5f7fb;
            color: #1e293b;
            line-height: 1.5;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* HEADER */
        header {
            background: white;
            box-shadow: 0 1px 3px rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 10;
            backdrop-filter: blur(10px);
            background: rgba(255,255,255,0.96);
        }
        
        nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            gap: 1rem;
        }
        
        .logo {
            font-size: 1.6rem;
            font-weight: 700;
            background: linear-gradient(135deg, #0f3b2c, #1e7b5e);
            background-clip: text;
            -webkit-background-clip: text;
            color: transparent;
            letter-spacing: -0.3px;
        }
        
        .nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            align-items: center;
        }
        
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #2c3e2f;
            transition: 0.2s;
        }
        
        .nav-links a:hover {
            color: #0f6b4a;
            border-bottom: 2px solid #1e7b5e;
        }
        
        .btn-volver {
            background: #e2e8f0;
            color: #1e293b !important;
            padding: 0.5rem 1.2rem;
            border-radius: 40px;
            border-bottom: none !important;
        }
        
        .btn-volver:hover {
            background: #cbd5e1;
        }

        /* HERO */
        .hero {
            background: linear-gradient(135deg, #0f3b2c 0%, #1e7b5e 100%);
            color: white;
            padding: 3rem 0;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
        }
        
        .hero p {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        /* FILTRO POR CATEGORÍAS */
        .filtro-section {
            padding: 2rem 0;
            background: white;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .filtro-form {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: flex-end;
            justify-content: center;
        }
        
        .filtro-group {
            flex: 1;
            min-width: 200px;
        }
        
        .filtro-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.4rem;
            color: #0e2f25;
            font-size: 0.85rem;
        }
        
        .filtro-select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #cbd5e1;
            border-radius: 40px;
            font-size: 0.95rem;
            background: white;
            cursor: pointer;
        }
        
        .btn-filtrar {
            background: #1e7b5e;
            color: white;
            border: none;
            padding: 0.7rem 1.8rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        
        .btn-filtrar:hover {
            background: #0f5e46;
        }
        
        .btn-limpiar {
            background: #e2e8f0;
            color: #1e293b;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-limpiar:hover {
            background: #cbd5e1;
        }
        
        .resultados-info {
            text-align: center;
            margin-top: 1rem;
            color: #5f7a6b;
            font-size: 0.9rem;
        }

        /* GRID DE ANUNCIOS - 3 COLUMNAS */
        .listado-anuncios {
            padding: 3rem 0;
        }
        
        .mural-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-bottom: 3rem;
        }
        
        .anuncio-card {
            background: white;
            border-radius: 24px;
            padding: 1.5rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
            border: 1px solid #e9edf2;
            transition: all 0.2s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .anuncio-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.1);
        }
        
        .anuncio-titulo {
            font-size: 1.2rem;
            font-weight: 700;
            color: #1e7b5e;
            margin-bottom: 0.75rem;
            line-height: 1.4;
            word-break: break-word;
        }
        
        .anuncio-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1rem;
            font-size: 0.75rem;
        }
        
        .categoria-badge {
            background: #e0f2e9;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 500;
            color: #1e5a42;
        }
        
        .anuncio-nombre {
            background: #f1f5f9;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.7rem;
            color: #475569;
        }
        
        .anuncio-descripcion {
            color: #334155;
            margin-bottom: 1rem;
            line-height: 1.5;
            flex-grow: 1;
            font-size: 0.9rem;
            word-break: break-word;
        }
        
        .anuncio-contacto {
            background: #f8fafc;
            padding: 0.6rem 1rem;
            border-radius: 16px;
            font-size: 0.8rem;
            margin-bottom: 0.8rem;
            word-break: break-all;
            border-left: 3px solid #1e7b5e;
        }
        
        .anuncio-fecha {
            font-size: 0.65rem;
            color: #94a3b8;
            margin-top: 0.5rem;
            text-align: right;
        }
        
        .sin-anuncios {
            text-align: center;
            padding: 4rem;
            background: white;
            border-radius: 32px;
            color: #5f7a6b;
            grid-column: 1 / -1;
        }
        
        .sin-anuncios p {
            font-size: 1.1rem;
        }

        /* PAGINACIÓN */
        .paginacion {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 2rem;
            padding: 1rem 0;
        }
        
        .paginacion a, .paginacion span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 0.8rem;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 500;
            transition: 0.2s;
        }
        
        .paginacion a {
            background: white;
            color: #1e7b5e;
            border: 1px solid #e2e8f0;
        }
        
        .paginacion a:hover {
            background: #1e7b5e;
            color: white;
            border-color: #1e7b5e;
        }
        
        .paginacion .activo {
            background: #1e7b5e;
            color: white;
            border: 1px solid #1e7b5e;
        }
        
        .paginacion .punto {
            background: transparent;
            color: #94a3b8;
        }

        /* FOOTER */
        footer {
            text-align: center;
            padding: 2rem;
            background: #eef2f0;
            font-size: 0.85rem;
            color: #3a5e4e;
            margin-top: 2rem;
        }
        
        footer a {
            color: #1e7b5e;
            text-decoration: none;
        }

        /* RESPONSIVE */
        @media (max-width: 900px) {
            .mural-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }
        
        @media (max-width: 600px) {
            .container {
                padding: 0 1rem;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .mural-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            .filtro-form {
                flex-direction: column;
            }
            .filtro-group {
                width: 100%;
            }
            .btn-filtrar, .btn-limpiar {
                width: 100%;
                text-align: center;
            }
        }