:root {
    --background: #0d1117;
    --surface: #161b22;
    --surface-raised: #21262d;
    --border: #30363d;
    --text: #f0f6fc;
    --muted: #8b949e;
    --accent: #3fb950;
    --page-title-size: 2rem;
    --warning-background: #3d2e00;
    --warning-text: #f2cc60;
    color: var(--text);
    color-scheme: dark;
    font-family: Arial, sans-serif;
    background: var(--background);
}

* {
    box-sizing: border-box;
}

body {
    background: var(--background);
    margin: 0;
}

a {
    color: var(--accent);
}

code {
    background: var(--surface-raised);
    border-radius: .25rem;
    padding: .1rem .3rem;
}

.text-danger {
    color: #ff7b72;
}

.puzzle-page {
    min-height: 100vh;
    padding: 1rem;
}

.puzzle-page header {
    padding-bottom: 1.5rem;
    text-align: center;
}

.completion-difficulties {
    display: flex;
    gap: .5rem;
    justify-content: center;
}

.completion-difficulties a {
    border: 1px solid var(--border);
    border-radius: .4rem;
    color: var(--text);
    padding: .35rem .65rem;
    text-decoration: none;
}

.completion-difficulties a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.puzzle-page h1 {
    font-size: var(--page-title-size);
    line-height: 1.15;
    margin: 0;
    outline: none;
}

.status,
.warning {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: .75rem;
    margin: 4rem auto;
    max-width: 40rem;
    padding: 2rem;
    text-align: center;
}

.warning {
    background: var(--warning-background);
    color: var(--warning-text);
    margin: 0 auto 1rem;
    padding: .75rem 1rem;
}

@media (max-width: 30rem) {
    :root {
        --page-title-size: 1.75rem;
    }

    .puzzle-page {
        display: flex;
        flex-direction: column;
        height: 100dvh;
        min-height: 0;
        overflow: hidden;
        padding:
            .5rem
            max(.5rem, env(safe-area-inset-right))
            max(.5rem, env(safe-area-inset-bottom))
            max(.5rem, env(safe-area-inset-left));
    }

    .puzzle-page header {
        padding-bottom: .5rem;
    }
}