.surfdeck-page {
    --content-width: var(--layout-content);
    --surfdeck-demo-max-width: 1020px;
    --surfdeck-demo-padding: 10px;
    --surfdeck-demo-section-padding: 0 0 58px;
    --surfdeck-media-background: #e4dec9;
    --surfdeck-support-row-min-height: 58px;
    --surfdeck-support-row-padding: 10px 0;
    --surfdeck-content-inset: max(var(--layout-gutter), calc((100vw - var(--layout-content)) / 2 + var(--layout-gutter)));
    --site-footer-padding: 28px var(--surfdeck-content-inset) 46px;
    --site-footer-padding-mobile: 28px var(--layout-gutter-mobile) 46px;
    --site-footer-border: 1px solid var(--color-line);
    --site-footer-border-inset: var(--surfdeck-content-inset);
    --site-footer-border-inset-mobile: var(--layout-gutter-mobile);
    --site-footer-color: var(--color-text-subtle);
    --site-footer-font-size: 0.9rem;
    --site-footer-gap: 20px;
}

.surfdeck-shell {
    padding-top: 28px;
    padding-bottom: 58px;
}

.topbar {
    --site-header-color: var(--color-text);
    --site-header-gap: 18px;
    --site-header-link-hover-color: var(--color-brand);
    margin-bottom: 68px;
}

/* Keep labels quieter than explanatory body copy. */
.quiet-link,
.release-note,
.metadata dt {
    color: var(--color-text-muted);
}

.surfdeck-demo-prelude,
.plain-note,
.steps p,
.feedback-list {
    color: var(--color-text-subtle);
}

.surfdeck-hero {
    max-width: 720px;
    margin: 0 auto 52px;
    text-align: center;
}

.surfdeck-hero__copy {
    margin: 0 auto;
}

.release-note {
    position: relative;
    z-index: 0;
    display: inline-flex;
    width: fit-content;
    min-height: 28px;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    padding: 6px 12px;
    color: transparent;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--color-brand), var(--color-sky));
    background-clip: text;
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.1;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.release-note::before {
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: inherit;
    content: "";
}

.surfdeck-page h1 {
    margin: 0 auto;
    padding-bottom: 18px;
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 4.35vw, 3.8rem);
    font-weight: 500;
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.surfdeck-demo-prelude {
    display: grid;
    gap: 12px;
    max-width: 720px;
    font-weight: 500;
    margin: 0 auto 28px;
    font-size: 1.2rem;
    line-height: 1.4;
    letter-spacing: -0.01em;
    text-align: center;
}

.surfdeck-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px 18px;
    margin-top: 28px;
}

.metadata {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 150px));
    justify-content: center;
    gap: 10px 28px;
    margin-top: 34px;
    text-align: center;
}

.metadata div {
    min-width: 0;
}

.metadata dt {
    font-size: 0.75rem;
    font-weight: 500;
}

.metadata dd {
    margin-top: 2px;
    font-size: 0.88rem;
    font-weight: 500;
}

.surfdeck-demo-section {
    padding: var(--surfdeck-demo-section-padding);
}

.surfdeck-demo {
    width: min(100%, var(--surfdeck-demo-max-width));
    min-width: 0;
    margin: 0 auto;
    padding: var(--surfdeck-demo-padding);
    border-radius: 20px;
    background: rgb(var(--color-white-rgb));
    box-shadow: var(--shadow-card);
    text-align: center;
}

.surfdeck-demo__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.surfdeck-demo__panel {
    display: grid;
    min-width: 0;
    padding: 12px;
    overflow: hidden;
    border-radius: 12px;
    background: var(--surfdeck-media-background);
}

.surfdeck-demo__panel img {
    width: 100%;
    height: clamp(360px, 42vw, 540px);
    object-fit: contain;
    object-position: top center;
}

.surfdeck-demo figcaption {
    padding: 12px 4px 2px;
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.surfdeck-section {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: clamp(24px, 5vw, 72px);
    padding: 58px 0 0;
}

.surfdeck-section[hidden] {
    display: none;
}

.surfdeck-section--baseline {
    align-items: first baseline;
}

.surfdeck-section h2 {
    color: var(--color-text-subtle);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.25;
    -text-transform: uppercase;
}

.surfdeck-section__body {
    max-width: 760px;
    font-size: 1rem;
    line-height: 1.5;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.steps article {
    min-width: 0;
    padding: 16px;
    border: 1px solid var(--color-line);
    border-radius: 14px;
    background: rgb(var(--color-white-rgb) / 54%);
    box-shadow: none;
}

.steps span {
    display: inline-flex;
    width: 30px;
    height: 30px;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    color: var(--color-text);
    border-radius: 90px;
    background: var(--color-badge);
    font-size: 0.88rem;
    font-weight: 500;
}

.steps h3 {
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.25;
}

.steps p {
    margin-top: 10px;
    font-size: 0.95rem;
}

.plain-note {
    max-width: 640px;
    margin-top: 22px;
}

.support-list,
.feedback-list,
.install-list {
    margin: 0;
    padding: 0;
}

.support-list,
.feedback-list {
    list-style: none;
}

.support-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 20px;
}

.support-list li {
    display: flex;
    min-height: var(--surfdeck-support-row-min-height);
    align-items: center;
    padding: var(--surfdeck-support-row-padding);
    border-top: 1px solid var(--color-line);
    line-height: 1.35;
}

.support-list li > span {
    min-width: 0;
}

.support-list li:nth-child(-n+2) {
    border-top: 0;
}

.install-list {
    display: grid;
    gap: 12px;
    padding-left: 1.25rem;
}

.install-list li::marker {
    color: var(--color-text-muted);
}

.feedback-section .surfdeck-section__body {
    display: grid;
    gap: 18px;
}

.feedback-list {
    display: grid;
    gap: 8px;
}

.feedback-list li {
    position: relative;
    padding-left: 18px;
}

.feedback-list li::before {
    position: absolute;
    top: 0.68em;
    left: 0;
    width: 5px;
    height: 5px;
    border-radius: 90px;
    background: var(--color-brand);
    content: "";
}

@media (max-width: 900px) {
    .topbar {
        margin-bottom: 48px;
    }

    .surfdeck-section {
        grid-template-columns: 1fr;
    }

    .surfdeck-hero__copy {
        max-width: none;
    }

    .surfdeck-section {
        gap: 20px;
    }

    .steps {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .surfdeck-page {
        --content-gutter: var(--layout-gutter-mobile);
    }

    .surfdeck-shell {
        padding-top: 18px;
        padding-bottom: 42px;
    }

    .topbar {
        align-items: flex-start;
        margin-bottom: 40px;
    }

    .surfdeck-page h1 {
        max-width: 100%;
        font-size: clamp(2.12rem, 11.5vw, 3.6rem);
    }

    .surfdeck-hero {
        margin-bottom: 34px;
    }

    .surfdeck-demo__grid {
        grid-template-columns: 1fr;
    }

    .surfdeck-demo__panel img {
        height: auto;
    }

    .metadata,
    .support-list {
        grid-template-columns: 1fr;
    }

    .support-list li:nth-child(2) {
        border-top: 1px solid var(--color-line);
    }

    .surfdeck-section {
        padding-top: 42px;
    }
}