:root {
    --ink: #1a1d21;
    --muted: #6b7280;
    --border: #e5e7eb;
    --bg: #fafafa;
    --accent: #2563eb;
    --good: #059669;
    --warn: #d97706;
    --bad: #dc2626;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
}

body.centered {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.topbar nav { display: flex; gap: 1rem; align-items: center; color: var(--muted); }
.topbar nav a { color: var(--accent); text-decoration: none; }

.page { max-width: 960px; margin: 0 auto; padding: 2rem; }

.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }

h1 { font-size: 1.5rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 2rem 0 0.75rem; }

section { margin-bottom: 2rem; }

.data-table { width: 100%; border-collapse: collapse; background: #fff; }
.data-table th, .data-table td {
    text-align: left;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
.data-table th { color: var(--muted); font-weight: 600; }

.rating-good { color: var(--good); font-weight: 600; }
.rating-needs-improvement { color: var(--warn); font-weight: 600; }
.rating-poor { color: var(--bad); font-weight: 600; }
.rating-unknown { color: var(--muted); }

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn-google { background: #fff; color: var(--ink); border: 1px solid var(--border); }
.btn-danger { background: var(--bad); }

.login-box { text-align: center; padding: 2rem 3rem; background: #fff; border-radius: 8px; border: 1px solid var(--border); }

.form { display: flex; flex-direction: column; gap: 0.75rem; max-width: 420px; }
.form label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.9rem; }
.form input, .form textarea { padding: 0.5rem; border: 1px solid var(--border); border-radius: 4px; font: inherit; }
.form-inline { flex-direction: row; align-items: center; max-width: none; }

.error { color: var(--bad); }
.success { color: var(--good); }
.muted { color: var(--muted); font-size: 0.85rem; }
.empty-state { color: var(--muted); }

.code-block {
    background: #111827;
    color: #f9fafb;
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.85rem;
}

.range-switch a {
    margin-left: 0.75rem;
    text-decoration: none;
    color: var(--muted);
}
.range-switch a.active { color: var(--ink); font-weight: 600; }

.annotation-list { list-style: none; padding: 0; font-size: 0.9rem; }
.annotation-list li { padding: 0.25rem 0; }

.install-snippet { margin-bottom: 1.5rem; }