:root {
    color-scheme: light dark;
    --background: #eef3f7;
    --background-accent: #dbe9f5;
    --panel: rgba(255, 255, 255, 0.88);
    --panel-strong: #ffffff;
    --text: #152033;
    --muted: #647084;
    --border: rgba(72, 86, 109, 0.18);
    --shadow: 0 28px 90px rgba(20, 31, 49, 0.18);
    --swagger: #6fca44;
    --swagger-dark: #3f8d2a;
    --scalar: #242936;
    --scalar-accent: #8a7dff;
    --focus: #2f6fed;
}

[data-theme="dark"] {
    --background: #0b0f17;
    --background-accent: #162033;
    --panel: rgba(18, 24, 35, 0.86);
    --panel-strong: #151c29;
    --text: #edf4ff;
    --muted: #a7b2c4;
    --border: rgba(210, 224, 246, 0.16);
    --shadow: 0 32px 100px rgba(0, 0, 0, 0.42);
    --swagger: #7fd04a;
    --swagger-dark: #5ca934;
    --scalar: #edf4ff;
    --scalar-accent: #a69cff;
    --focus: #8fb7ff;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --background: #0b0f17;
        --background-accent: #162033;
        --panel: rgba(18, 24, 35, 0.86);
        --panel-strong: #151c29;
        --text: #edf4ff;
        --muted: #a7b2c4;
        --border: rgba(210, 224, 246, 0.16);
        --shadow: 0 32px 100px rgba(0, 0, 0, 0.42);
        --swagger: #7fd04a;
        --swagger-dark: #5ca934;
        --scalar: #edf4ff;
        --scalar-accent: #a69cff;
        --focus: #8fb7ff;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 18%, color-mix(in srgb, var(--background-accent), transparent 18%), transparent 30%),
        radial-gradient(circle at 86% 12%, color-mix(in srgb, var(--scalar-accent), transparent 68%), transparent 28%),
        linear-gradient(135deg, var(--background), var(--background-accent));
    padding: 24px;
}

.shell {
    width: min(92vw, 680px);
    padding: 32px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 28px;
}

.eyebrow {
    display: inline-flex;
    margin-bottom: 12px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1 {
    margin: 0 0 10px;
    font-size: clamp(32px, 4vw, 46px);
    line-height: 1.1;
    letter-spacing: 0;
}

p {
    max-width: 560px;
    margin: 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.55;
}

.theme-toggle {
    width: 48px;
    height: 48px;
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text);
    background: var(--panel-strong);
    cursor: pointer;
    box-shadow: 0 10px 26px rgba(21, 32, 51, 0.12);
    transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.theme-toggle:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--focus), transparent 30%);
}

.theme-toggle:focus-visible,
.doc-card:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--focus), transparent 35%);
    outline-offset: 4px;
}

.theme-toggle__icon {
    width: 19px;
    height: 19px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 5px color-mix(in srgb, currentColor, transparent 82%);
}

[data-theme="dark"] .theme-toggle__icon {
    width: 18px;
    height: 18px;
    background: transparent;
    box-shadow: inset -6px -4px 0 0 currentColor;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle__icon {
        width: 18px;
        height: 18px;
        background: transparent;
        box-shadow: inset -6px -4px 0 0 currentColor;
    }
}

.actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.doc-card {
    display: flex;
    min-height: 190px;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 14px;
    color: var(--text);
    background: var(--panel-strong);
    text-decoration: none;
    box-shadow: 0 18px 44px rgba(21, 32, 51, 0.10);
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.doc-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 26px 54px rgba(21, 32, 51, 0.16);
}

.swagger-card:hover {
    border-color: color-mix(in srgb, var(--swagger), transparent 25%);
}

.scalar-card:hover {
    border-color: color-mix(in srgb, var(--scalar-accent), transparent 25%);
}

.icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
}

.icon svg {
    width: 100%;
    height: 100%;
}

.swagger-icon circle {
    fill: var(--swagger);
}

.swagger-icon path {
    fill: #ffffff;
}

.scalar-icon rect {
    fill: var(--scalar);
}

.scalar-icon path {
    fill: var(--scalar-accent);
}

strong {
    display: block;
    margin-bottom: 8px;
    font-size: 24px;
    line-height: 1.15;
    letter-spacing: 0;
}

small {
    display: block;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.45;
}

@media (max-width: 560px) {
    body {
        padding: 16px;
    }

    .shell {
        padding: 24px;
    }

    .hero {
        gap: 16px;
        margin-bottom: 24px;
    }

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

    .doc-card {
        min-height: 160px;
    }
}