:root {
            --ivory: #f8f8f2;
            --metallic: #bfc5ce;
            --silver: #e6e8eb;
            --accent: #4a6fa5; /* Azul-gris */
            --accent-dark: #223a5e; /* Azul oscuro */
            --text-main: #23272e;
            --text-soft: #5a5e6b;
            --shadow: 0 4px 32px 0 rgba(68, 111, 165, 0.10);
        }
        html, body {
            margin: 0;
            padding: 0;
            background: linear-gradient(135deg, var(--ivory) 60%, var(--metallic) 100%);
            color: var(--text-main);
            font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
            min-height: 100vh;
        }
        body {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        header {
            background: rgba(255,255,255,0.95);
            box-shadow: var(--shadow);
            padding: 0 0 0 0;
            position: sticky;
            top: 0;
            z-index: 10;
        }
        .language-switcher {
            text-align: right;
            padding: 12px 32px 0 0;
        }
        .language-switcher .cta-button {
            display: inline-block;
            background-color: transparent;
            color: var(--accent-dark);
            padding: 8px 20px;
            text-decoration: none;
            border-radius: 5px;
            font-weight: bold;
            border: 2px solid var(--accent-dark);
            transition: background-color 0.3s, color 0.3s, transform 0.2s;
            margin-left: 4px;
            margin-right: 4px;
            cursor: pointer;
        }
        .language-switcher .cta-button:hover,
        .language-switcher .cta-button:focus,
        .language-switcher .cta-button.selected,
        .language-switcher .cta-button:focus-visible {
            background-color: var(--accent-dark);
            color: #fff;
            outline: none;
            transform: translateY(-0px);
        }
        .logo {
            font-size: 2.2em;
            font-weight: bold;
            letter-spacing: 2px;
            color: var(--accent-dark);
            padding: 24px 32px 0 32px;
            text-shadow: 0 2px 12px var(--metallic);
        }
        nav {
            margin-top: 18px;
            padding: 0 32px 0 32px;
        }
        nav ul {
            list-style: none;
            display: flex;
            gap: 32px;
            padding: 0;
            margin: 10;
        }
        nav a {
            color: var(--text-main);
            text-decoration: none;
            font-size: 1.1em;
            font-weight: 500;
            padding: 8px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        nav a.active, nav a:hover, nav a:focus {
            color: var(--accent-dark);
            border-bottom: 2px solid var(--accent-dark);
        }
        main {
            flex: 1;
            width: 100%;
            max-width: 900px;
            margin: 36px auto 0 auto;
            background: rgba(255,255,255,0.85);
            border-radius: 18px;
            box-shadow: var(--shadow);
            padding: 36px 32px 32px 32px;
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
        section {
            margin-bottom: 0;
            scroll-margin-top: 180px; /* Ajuste para el header sticky */
        }
        h1, h2, h3 {
            font-family: 'Orbitron', 'Segoe UI', Arial, sans-serif;
            letter-spacing: 1.5px;
            color: var(--accent-dark);
            margin-top: 0;
        }
        h1 {
            font-size: 2.1em;
            margin-bottom: 18px;
        }
        h2 {
            font-size: 1.4em;
            margin-bottom: 12px;
        }
        h3 {
            font-size: 1em;
            margin-bottom: 12px;
        }
        .about-container {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        .about-photo {
            width: 200px;
            height: 200px;
            background: var(--silver);
            border-radius: 50%;
            box-shadow: 0 2px 16px #bfc5ce55;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1em;
            color: var(--text-soft);
            object-fit: cover;
            overflow: hidden;
        }
        .about-text {
            flex: 1;
            min-width: 220px;
        }
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .portfolio-item {
            background: var(--silver);
            border-radius: 12px;
            box-shadow: 0 2px 12px #bfc5ce33;
            padding: 18px 14px 22px 14px;
            min-height: 220px;
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            align-items: flex-start;
            position: relative;
        }
        .portfolio-item-image {
            width: 100%;
            height: 100%;
            background: var(--metallic);
            border-radius: 8px;
            margin-bottom: 12px;
            object-fit: cover;
            box-shadow: 0 1px 8px #bfc5ce33;
        }
        .portfolio-item-title {
            font-weight: bold;
            color: var(--accent-dark);
            margin-bottom: 8px;
            font-size: 1.1em;
        }
        .portfolio-item-desc {
            color: var(--text-soft);
            font-size: 0.98em;
            margin-bottom: 16px;
        }
        .portfolio-item .cta-button {
            margin-top: auto;
            background: var(--accent-dark);
            color: #fff;
            border: none;
            font-size: 0.98em;
            padding: 8px 18px;
            box-shadow: 0 1px 8px #bfc5ce33;
        }
        .portfolio-item .cta-button:hover,
        .portfolio-item .cta-button:focus {
            background: var(--accent);
            color: var(--text-main);
        }
        .feature-item-image {
            width: 100%;
            height: 100%;
            background: var(--metallic);
            border-radius: 8px;
            margin-bottom: 12px;
            object-fit: contain;
            box-shadow: 0 1px 8px #bfc5ce33;
        }
        .experience-list, .features-list{
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .experience-item, .feature-item {
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--metallic);
        }
        .contact-form {
            max-width: 420px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .contact-form label {
            font-weight: 500;
            color: var(--text-soft);
        }
        .contact-form input, .contact-form textarea {
            width: 85%;
            padding: 10px 12px;
            border: 1px solid var(--metallic);
            border-radius: 6px;
            background: #fff;
            font-size: 1em;
            color: var(--text-main);
            resize: vertical;
        }
        .contact-form textarea {
            min-height: 80px;
        }
        .contact-form .cta-button {
            width: auto;
            align-self: flex-end;
            margin-top: 8px;
            margin-right: 40px;
            background: transparent;
            color: var(--accent-dark);
            border: 2px solid var(--accent-dark);
            font-size: 1em;
            padding: 8px 20px;
            border-radius: 5px;
            font-weight: bold;
            transition: background-color 0.3s, color 0.3s, transform 0.2s;
            box-shadow: none;
            cursor: pointer;
        }

        .contact-form .cta-button:hover,
        .contact-form .cta-button:focus {
            background: var(--accent-dark);
            color: #fff;
            outline: none;
            transform: translateY(-2px);
        }
        footer {
            text-align: center;
            color: var(--text-soft);
            background: rgba(255,255,255,0.7);
            font-size: 1em;
            padding: 18px 0 12px 0;
            margin-top: 36px;
            border-top: 1px solid var(--metallic);
        }
        @media (max-width: 700px) {
            main {
                padding: 18px 6vw 18px 6vw;
            }
            .about-container {
                flex-direction: column;
                align-items: flex-start;
                gap: 18px;
            }
            .logo, .language-switcher {
                padding-left: 12px;
                padding-right: 12px;
            }
            nav {
                padding-left: 12px;
                padding-right: 12px;
            }
        }
        @media (max-width: 500px) {
            .logo {
                font-size: 1.3em;
                padding-top: 14px;
            }
            nav ul {
                gap: 12px;
            }
            main {
                margin-top: 18px;
                padding: 10px 2vw 10px 2vw;
            }
        }