:root {
                --ink: #263637;
                --muted: #718080;
                --air: #698c91;
                --blue: #dfeff1;
                --mist: #f2f6f5;
                --warm: #f6f1e9;
                --line: #e8eeee;
            }
            body, input, select, textarea {
                font-family: "Source Sans Pro", sans-serif !important;
                color: var(--ink);
            }
            section, #header, hr, .major {
                border: none !important;
                box-shadow: none !important;
                padding: 0 !important;
            }
            
            #sidebar {
                position: fixed !important;
                top: 0;
                left: 0;
                height: 100vh !important;
                width: 18em !important;
                overflow: hidden !important;
                z-index: 10000;
                background: #fff;
                border-right: 1px solid #f2f2f2 !important;
            }
            #wrapper {
                padding-left: 18em !important;
            }
            .inner {
                padding: 2.2em 5em 0 !important;
                max-width: 1600px !important;
                margin: auto;
                width: 100%;
                box-sizing: border-box;
            }
            .eyebrow {
                font-size: 0.65em;
                font-weight: 900;
                text-transform: uppercase;
                letter-spacing: 4px;
                color: #9daaaa;
                display: block;
                margin-bottom: 16px;
            }
            .hero {
                display: grid;
                grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
                gap: 5em;
                align-items: start;
                padding-bottom: 3.7em !important;
            }
            .hero h1 {
                font-size: 3.7em;
                letter-spacing: -2.5px;
                line-height: 1.02;
                margin: 0.15em 0 0.35em;
                color: #1e3031;
            }
            .lead {
                font-size: 1.17em;
                line-height: 1.75;
                color: var(--muted);
                max-width: 760px;
            }
            .air-orbit {
                width: 100%;
                max-width: 390px;
                aspect-ratio: 1;
                border-radius: 50%;
                position: relative;
                margin: 0;
                justify-self: center;
                background: #eef5f5 url("/images/ar-vivo.webp") center/cover no-repeat;
                overflow: hidden;
                box-sizing: border-box;
                box-shadow: 0 30px 80px rgba(50, 84, 89, 0.18);
            }
            .section-block {
                border-top: 1px solid var(--line);
                padding: 3.2em 0 !important;
            }
            .section-head {
                display: grid;
                grid-template-columns: 180px minmax(0, 800px);
                gap: 2em;
                margin-bottom: 2em;
            }
            .section-head h2 {
                font-size: 2em;
                letter-spacing: -0.6px;
                margin: 0;
                color: var(--ink);
            }
            .section-head p {
                margin: 0;
                color: var(--muted);
                line-height: 1.7;
            }
            .metric-grid {
                display: grid;
                grid-template-columns: repeat(4, 1fr);
                gap: 1.2em;
            }
            .metric {
                padding: 1.6em;
                border-radius: 16px;
                background: var(--mist);
                min-height: 190px;
            }
            .metric:nth-child(2n) {
                background: var(--warm);
            }
            .metric h3 {
                font-size: 0.7em;
                text-transform: uppercase;
                letter-spacing: 1.5px;
                color: #7c8d8e;
                margin: 0;
            }
            .metric strong {
                font-size: 2.15em;
                line-height: 1.05;
                color: var(--air);
                display: block;
                margin: 0.25em 0 0.45em;
            }
            .metric p {
                font-size: 0.86em;
                line-height: 1.55;
                color: var(--muted);
                margin: 0;
            }
            .source {
                display: block;
                font-size: 0.65em;
                color: #9ca7a7;
                margin-top: 1.1em;
            }
            .local-card {
                display: grid;
                grid-template-columns: 1fr 0.85fr;
                gap: 2em;
                background: #29494d;
                color: #fff;
                padding: 2.3em;
                border-radius: 20px;
            }
            .local-card h3 {
                color: #fff;
                font-size: 1.7em;
                margin: 0 0 0.4em;
            }
            .local-card p {
                color: #cedddd;
                line-height: 1.65;
            }
            .honesty {
                border-left: 2px solid #9bc3c7;
                padding-left: 1em;
                font-size: 0.85em;
            }
            .local-values {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1px;
                background: rgba(255, 255, 255, 0.12);
            }
            .local-value {
                background: #29494d;
                padding: 1.2em;
            }
            .local-value small {
                display: block;
                text-transform: uppercase;
                letter-spacing: 1px;
                color: #a9c5c7;
            }
            .local-value b {
                color: #fff;
            }
            .pollutants, .episodes, .news-list {
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 1.2em;
            }
            .pollutant, .episode, .news-item {
                border: 1px solid var(--line);
                border-radius: 14px;
                padding: 1.5em;
                background: #fff;
            }
            .pollutant h3, .episode h3, .news-item h3 {
                font-size: 1.08em;
                line-height: 1.4;
                color: var(--ink);
                margin: 0.25em 0 0.6em;
            }
            .pollutant p, .episode p {
                font-size: 0.9em;
                line-height: 1.6;
                color: var(--muted);
                margin: 0;
            }
            .symbol {
                font-size: 0.68em;
                font-weight: 900;
                letter-spacing: 1.5px;
                color: var(--air);
                text-transform: uppercase;
            }
            .small-list {
                font-size: 0.84em;
                line-height: 1.55;
                color: var(--muted);
                padding-left: 1.1em;
                margin: 0.9em 0 0;
            }
            .ecosystem {
                background: linear-gradient(120deg, #edf4ef, #f6f4ea);
                border-radius: 20px;
                padding: 2em;
                display: grid;
                grid-template-columns: repeat(3, 1fr);
                gap: 2em;
            }
            .ecosystem article {
                padding-right: 1em;
            }
            .ecosystem b {
                display: block;
                color: #567b68;
                margin-bottom: 0.45em;
            }
            .ecosystem p {
                font-size: 0.9em;
                line-height: 1.6;
                color: var(--muted);
                margin: 0;
            }
            .qualar {
                display: flex;
                align-items: center;
                justify-content: space-between;
                gap: 2em;
                border: 1px solid var(--line);
                border-radius: 16px;
                padding: 1.8em;
            }
            .qualar p {
                margin: 0;
                color: var(--muted);
                line-height: 1.6;
            }
            .button-link {
                display: inline-block;
                white-space: nowrap;
                text-decoration: none;
                background: #315e64;
                color: #fff !important;
                border-radius: 8px;
                padding: 0.8em 1.2em;
                font-size: 0.78em;
                font-weight: 800;
                letter-spacing: 0.4px;
            }
            .news-item {
                text-decoration: none;
                color: inherit;
                transition: 0.25s;
            }
            .news-item:hover {
                transform: translateY(-3px);
                border-color: #b7d0d2;
            }
            .news-item span {
                font-size: 0.7em;
                color: #99a5a5;
            }
            .empty {
                font-style: italic;
                color: #99a5a5;
            }
            .footer {
                padding: 4em 5em 2em;
                border-top: 1px solid var(--line);
                opacity: 0.4;
                text-align: right;
                box-sizing: border-box;
            }

            .footer-wordmark {
                display: flex;
                justify-content: flex-end;
            }

            .bio-wordmark {
                display: inline-block;
                text-align: center;
                line-height: 1;
                font-family: "Georgia", "Times New Roman", serif;
            }

            .bio-wordmark strong {
                display: block;
                font-size: 1.15em;
                font-weight: 400;
                letter-spacing: -0.4px;
                color: #81966e;
                line-height: 1;
                font-family: inherit;
            }

            .bio-wordmark small {
                display: block;
                margin-top: 2px;
                font-size: 0.43em;
                font-weight: 700;
                letter-spacing: 1.8px;
                text-transform: uppercase;
                color: #a66f50;
                line-height: 1;
                font-family: inherit;
            }
            @media (max-width: 1100px) {
                #sidebar {
                    position: relative !important;
                    width: 100% !important;
                    height: auto !important;
                }
                #wrapper {
                    padding-left: 0 !important;
                }
                .hero {
                    grid-template-columns: 1fr;
                }
                .air-orbit {
                    width: 320px;
                }
                .metric-grid {
                    grid-template-columns: repeat(2, 1fr);
                }
            }
            @media (max-width: 760px) {
                .inner {
                    padding: 1.7em 1.4em 0 !important;
                }
                .hero h1 {
                    font-size: 2.55em;
                }
                .hero {
                    gap: 2.5em;
                }
                .air-orbit {
                    width: 235px;
                }
                .section-head, .local-card, .ecosystem {
                    grid-template-columns: 1fr;
                }
                .section-head {
                    gap: 0.7em;
                }
                .metric-grid, .pollutants, .episodes, .news-list {
                    grid-template-columns: 1fr;
                }
                .local-values {
                    grid-template-columns: 1fr 1fr;
                }
                .qualar {
                    align-items: flex-start;
                    flex-direction: column;
                }
            }

.project-reference {
    display: grid;
    grid-template-columns: 170px minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: center;
    margin: 3.2rem 0;
    padding: 1.5rem 1.7rem !important;
    border: 1px solid var(--line) !important;
    border-radius: 18px;
    background: var(--mist);
}
.project-reference h2 { margin: 0 0 .35rem; color: var(--ink); font-family: Georgia, serif; font-size: 1.55rem; }
.project-reference p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.55; }
.project-reference-links { display: flex; flex-direction: column; gap: .5rem; align-items: flex-end; }
.project-reference-links a { padding: .6rem .9rem; border: 1px solid #cfe0e0 !important; border-radius: 999px; color: var(--air) !important; font-size: .72rem; font-weight: 900; text-decoration: none; white-space: nowrap; }
.project-reference-links a:hover { border-color: var(--air) !important; background: #fff; }
@media (max-width: 760px) {
    .project-reference { grid-template-columns: 1fr; gap: .65rem; }
    .project-reference-links { align-items: flex-start; }
    .project-reference-links a { white-space: normal; }
}