:root {
    --color-body-bg: #111113;
    --color-card-bg: #1c1c1e;
    --color-card-border: #3a3a3c;
    --color-heading: #f5f5f7;
    --color-text-primary: #d1d1d6;
    --color-text-secondary: #8e8e93;
    --color-link: #636366;
    --color-link-hover: #8e8e93;
    --shadow-lg: rgba(0, 0, 0, 0.6);
    --shadow-sm: rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: light) {
    :root {
        --color-body-bg: #f2f2f7;
        --color-card-bg: #ffffff;
        --color-card-border: #d1d1d6;
        --color-heading: #1c1c1e;
        --color-text-primary: #3a3a3c;
        --color-text-secondary: #6c6c70;
        --color-link: #aeaeb2;
        --color-link-hover: #6c6c70;
        --shadow-lg: rgba(0, 0, 0, 0.08);
        --shadow-sm: rgba(0, 0, 0, 0.04);
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
    background: var(--color-body-bg);
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body:not(.prose-page) {
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.prose-page,
html:has(.prose-page) {
    height: auto;
}

.prose-page {
    padding: 64px 24px 96px;
}

.prose-page main {
    max-width: 640px;
    margin: 0 auto;
    color: var(--color-text-primary);
}

.prose-page h1 {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-heading);
    margin-bottom: 8px;
}

.prose-page h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-heading);
    margin-top: 32px;
    margin-bottom: 8px;
}

.prose-page p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-primary);
    margin-bottom: 12px;
}

.prose-page ul {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    padding-left: 20px;
}

.prose-page li {
    margin-bottom: 4px;
}

.prose-page a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.prose-page a:hover {
    color: var(--color-heading);
}

.prose-page code {
    font-size: 13px;
    color: var(--color-text-secondary);
}

.prose-page strong {
    color: var(--color-heading);
    font-weight: 600;
}

.card {
    width: 65vw;
    height: 88vh;
    background: var(--color-card-bg);
    border-radius: 16px;
    border: 1px solid var(--color-card-border);
    box-shadow:
        0 20px 60px var(--shadow-lg),
        0 4px 16px var(--shadow-sm);
    padding: 48px 56px;
    overflow: hidden;
    margin-top: 3vh;
    align-self: flex-start;
    display: flex;
    flex-direction: column;
}

.card h1 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-heading);
}

.card .subtitle {
    font-size: 29px;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text-primary);
    margin-bottom: 18px;
}

.card p ~ p {
    color: var(--color-text-secondary);
}

.mobile-description {
    display: none;
}

.demo-video-wrapper {
    flex: 1 1 0;
    min-height: 0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 24px;
}

.demo-video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.install-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    align-self: flex-end;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-link);
    text-decoration: none;
    transition: color 0.15s ease;
}

.install-link:hover {
    color: var(--color-link-hover);
}

.install-link .arrow {
    font-size: 16px;
}

@media (max-width: 768px) {
    body:not(.prose-page) {
        overflow: auto;
        padding: 24px 0;
    }

    .card {
        width: 90vw;
        height: auto;
        padding: 32px 28px;
        margin-top: 0;
        overflow: visible;
    }

    .card h1 {
        font-size: 28px;
    }

    .card .subtitle {
        font-size: 20px;
    }

    .demo-video-wrapper {
        display: none;
    }

    .mobile-description {
        display: block;
        margin-bottom: 24px;
        color: var(--color-text-primary);
    }

    .install-link {
        align-self: flex-start;
    }
}