        /* --- Base & Typography --- */
        body {
            font-family: 'Inter', sans-serif;
            background-color: #f8fafc;
            /* slate-50 */
            color: #1e293b;
            /* slate-800 */
            margin: 0;
            padding: 0;
        }

        .contenedor-navegacion-header {
            /* width: 100%; */
            padding: 1rem;
            height: 100px;
            background-color: rgb(56, 115, 161);
            display: flex;
            justify-content: space-around;
            align-items: center;

        }

        .propertie-navegacion-header {
            display: none;

            a {
                color: white;
                text-decoration: none;
                margin: 0 1rem;
                font-weight: 500;
            }
        }

        .propertie-logo img {
            height: 80px;
            width: auto;
            border-radius: 999px;
        }

        /* --- Layout --- */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem;
        }

        .main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        /* --- Header --- */
        header {
            margin-bottom: 2rem;
        }

        header h1 {
            font-size: 2.25rem;
            /* text-4xl */
            font-weight: 700;
            color: #0f172a;
            /* slate-900 */
        }

        header p {
            font-size: 1rem;
            color: #64748b;
            /* slate-500 */
            margin-top: 0.25rem;
        }

        /* --- Photo Gallery --- */
        #photo-gallery {
            margin-bottom: 2rem;
        }

        #mainImage {
            width: 100%;
            max-height: 550px;
            border-radius: 0.5rem;
            object-fit: cover;
            object-position: center;
        }

        #thumbnailContainer {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-top: 1rem;
        }

        #thumbnailContainer img {
            width: 100%;
            height: auto;
            cursor: pointer;
            border-radius: 0.5rem;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        #thumbnailContainer img:hover {
            transform: scale(1.05);
        }

        .thumbnail-active {
            outline: 2px solid #2563eb;
            /* blue-600 */
            outline-offset: 2px;
        }

        /* --- Card Styles --- */
        .card {
            background-color: #ffffff;
            padding: 1.5rem;
            border-radius: 0.5rem;
            box-shadow: 0 1px 2px 0 rgb(0 0 0 / 0.05);
            margin-top: 2rem;
        }

        .card:first-child {
            margin-top: 0;
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid #e2e8f0;
            /* slate-200 */
            padding-bottom: 1rem;
            margin-bottom: 1rem;
        }

        .card-header h2 {
            font-size: 1.5rem;
            /* text-2xl */
            font-weight: 700;
            color: #0f172a;
            /* slate-900 */
        }

        /* --- Details Section --- */
        .details-box {
            border: 1px solid #e2e8f0;
            /* slate-200 */
            border-radius: 0.5rem;
            padding: 1.5rem;
        }

        .details-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem 1rem;
        }

        .details-grid p:first-child {
            font-size: 0.875rem;
            /* text-sm */
            color: #64748b;
            /* slate-500 */
        }

        .details-grid p:last-child {
            font-weight: 600;
            font-size: 1.125rem;
            /* text-lg */
        }


        /* features */
        .features-list {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            /* align-items: center; */
        }

        /* --- Description Section --- */
        .description-content {
            color: #475569;
            /* slate-600 */
            line-height: 1.625;
        }

        .description-content p {
            margin-bottom: 1rem;
        }

        .description-content p:last-child {
            margin-bottom: 0;
        }

        /* --- Aside/Contact Form --- */
        aside .card {
            position: sticky;
            top: 2rem;
        }

        .agent-info {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }

        .agent-info img {
            width: 4rem;
            height: 4rem;
            border-radius: 9999px;
            object-fit: cover;
        }

        .agent-info .agent-name {
            font-weight: 700;
            font-size: 1.125rem;
            color: #0f172a;
            /* slate-900 */
        }

        .agent-info .agent-phone {
            color: #64748b;
            /* slate-500 */
        }

        .agent-info a {
            font-size: 0.875rem;
            font-weight: 500;
            color: #2563eb;
            /* blue-600 */
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .agent-info a:hover {
            color: #1d4ed8;
            /* blue-800 */
        }

        /* --- Form Elements --- */
        #contactForm input,
        #contactForm textarea {
            width: 100%;
            padding: 0.75rem 1rem;
            border: 1px solid #cbd5e1;
            /* slate-300 */
            border-radius: 0.375rem;
            margin-bottom: 1rem;
            box-sizing: border-box;
            /* Important for width */
            transition: box-shadow 0.2s, border-color 0.2s;
        }

        #contactForm input:focus,
        #contactForm textarea:focus {
            outline: none;
            border-color: #3b82f6;
            /* blue-500 */
            box-shadow: 0 0 0 2px #bfdbfe;
            /* ring-blue-200 */
        }

        #contactForm button {
            width: 100%;
            background-color: #2563eb;
            /* blue-600 */
            color: white;
            font-weight: 700;
            padding: 0.75rem 1rem;
            border: none;
            border-radius: 0.375rem;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        #contactForm button:hover {
            background-color: #1d4ed8;
            /* blue-700 */
        }

        .recaptcha-placeholder {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin: 1.5rem 0;
            padding: 0.75rem;
            border: 1px solid #e2e8f0;
            /* slate-200 */
            border-radius: 0.375rem;
            background-color: #f8fafc;
            /* slate-50 */
        }

        .recaptcha-placeholder .checkbox-group {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .recaptcha-placeholder input[type="checkbox"] {
            width: 1.5rem;
            height: 1.5rem;
        }

        .recaptcha-logo {
            font-size: 0.75rem;
            text-align: center;
            color: #94a3b8;
            /* slate-400 */
        }

        .recaptcha-logo img {
            width: 2rem;
            height: 2rem;
            margin: 0 auto 0.25rem;
            opacity: 0.5;
        }

        .success-message {
            display: none;
            /* hidden by default */
            margin-top: 1rem;
            padding: 1rem;
            text-align: center;
            background-color: #dcfce7;
            /* green-100 */
            color: #166534;
            /* green-800 */
            border: 1px solid #bbf7d0;
            /* green-200 */
            border-radius: 0.375rem;
        }

        /* --- Responsive Design --- */
        @media (min-width: 640px) {

            /* sm */
            .container {
                padding: 1.5rem;
            }

            #thumbnailContainer {
                grid-template-columns: repeat(5, 1fr);
            }
        }

        @media (min-width: 768px) {

            /* md */
            .details-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (min-width: 1024px) {

            /* lg */
            .container {
                padding: 2rem;
            }

            .main-grid {
                grid-template-columns: 2fr 1fr;
            }

            aside {
                margin-top: 0;
            }

            .propertie-navegacion-header {
                display: block;
            }
        }