:root {
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-text: #1f2933;
    --color-muted: #64748b;
    --color-primary: #0f766e;
    --color-border: #e2e8f0;
    --color-ok: #15803d;
    --color-bad: #b91c1c;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
}

.app-header {
    background: var(--color-primary);
    color: #fff;
    padding: 2rem 1.25rem 1.5rem;
}

.app-title {
    margin: 0;
    font-size: 1.5rem;
}

.app-subtitle {
    margin: 0.25rem 0 0;
    opacity: 0.85;
    font-size: 0.95rem;
}

.app-main {
    max-width: 640px;
    margin: 0 auto;
    padding: 1.25rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
}

.card h2 {
    margin-top: 0;
    font-size: 1.1rem;
}

.muted {
    color: var(--color-muted);
}

.status-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.4rem 1rem;
    margin: 1rem 0 0;
}

.status-grid dt {
    color: var(--color-muted);
    font-size: 0.85rem;
}

.status-grid dd {
    margin: 0;
    font-weight: 600;
}

.status-grid dd[data-state="ok"] {
    color: var(--color-ok);
}

.status-grid dd[data-state="bad"] {
    color: var(--color-bad);
}

.build-note {
    margin-top: 1rem;
    text-align: center;
    color: var(--color-muted);
    font-size: 0.8rem;
}