:root {
    --brand: #0f766e;
    --brand-contrast: #ffffff;
    --text: #0f172a;
    --text-muted: #334155;
    --card-bg: rgba(255, 255, 255, 0.94);
    --card-bg-muted: rgba(241, 245, 249, 0.94);
    --card-border: rgba(2, 6, 23, 0.10);
    --shadow: 0 14px 34px rgba(2, 6, 23, 0.14);
    --shadow-hover: 0 18px 46px rgba(2, 6, 23, 0.18);
    --radius: 16px;
}

html,
body {
    color: var(--color, var(--pico-color, var(--text)));
    background: var(--background-color, var(--pico-background-color, #ffffff));
}

nav.container-fluid {
    backdrop-filter: saturate(1.2) blur(10px);
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

nav a[role="button"] {
    background: var(--brand);
    border-color: var(--brand);
    color: var(--brand-contrast);
}

nav a[role="button"]:is(:hover, :focus) {
    filter: brightness(0.95);
}

main.container {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

img {
    border-radius: var(--radius);
}

.hero,
.highlight,
.cta,
.image-gallery a,
.video-container {
    box-shadow: var(--shadow);
    border: 1px solid var(--card-border);
}

.highlight,
.image-gallery a,
.video-container {
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.highlight:hover,
.image-gallery a:hover,
.video-container:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(15, 118, 110, 0.22);
}

.hero {
    padding: 1.5rem;
    border-radius: var(--radius);
    background: radial-gradient(1200px 420px at 20% 0%, rgba(15, 118, 110, 0.16), transparent 55%),
        radial-gradient(1000px 420px at 80% 10%, rgba(2, 132, 199, 0.10), transparent 55%),
        var(--card-bg);
    backdrop-filter: saturate(1.05) blur(10px);
}

.hero h1 {
    margin-bottom: 0.4rem;
}

.hero p {
    max-width: 60ch;
    margin-top: 0.75rem;
}

.hero-media img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.text-center {
    text-align: center;
}

.justify-center {
    justify-content: center;
}

.hero-actions a[role="button"] {
    background: var(--brand);
    border-color: var(--brand);
    color: var(--brand-contrast);
}

.hero-actions a.secondary {
    background: transparent;
    border-color: rgba(0, 0, 0, 0.18);
    color: inherit;
}

.section-title {
    margin-top: 2.25rem;
    margin-bottom: 0.4rem;
}

.highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin-top: 0.35rem;
}

.highlight {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.1rem 1.1rem;
    backdrop-filter: saturate(1.05) blur(10px);
}

.highlight h3 {
    margin-bottom: 0.4rem;
}

.highlight p {
    margin: 0;
    color: var(--text-muted);
}

.cta {
    margin-top: 2rem;
    padding: 1.25rem;
    border-radius: var(--radius);
    background: var(--card-bg-muted);
    backdrop-filter: saturate(1.05) blur(10px);
}

.cta p {
    margin: 0.25rem 0 0;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

.image-gallery a {
    display: block;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--card-bg);
}

.image-gallery img {
    display: block;
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    margin: 1.25rem 0 0;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--card-bg);
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

footer.container {
    padding-bottom: 2rem;
    color: var(--text-muted);
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #e2e8f0;
        --text-muted: rgba(226, 232, 240, 0.72);
        --card-bg: rgba(15, 23, 42, 0.74);
        --card-bg-muted: rgba(15, 23, 42, 0.62);
        --card-border: rgba(148, 163, 184, 0.18);
        --shadow: 0 18px 46px rgba(0, 0, 0, 0.38);
        --shadow-hover: 0 22px 58px rgba(0, 0, 0, 0.46);
    }

    nav.container-fluid {
        background: rgba(2, 6, 23, 0.70);
        border-bottom-color: var(--card-border);
    }
}

@media (max-width: 900px) {
    .highlights,
    .image-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-media img {
        height: 300px;
    }
}

@media (max-width: 600px) {
    nav ul {
        display: block;
        text-align: center;
    }

    nav li {
        display: block;
        margin: 0.4rem 0;
    }

    .highlights,
    .image-gallery {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 1.1rem;
    }

    .hero-media img {
        height: 240px;
    }
}