:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1b1b1a;
  --muted: #6b6b66;
  --border: #e4e4df;
  --accent: #1f5eff;
  --accent-text: #ffffff;
  --code-bg: #f1f1ed;
  --ok: #1a7f4b;
  --wait: #b26b00;
  --radius: 12px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --surface: #1b1b1b;
    --text: #ededea;
    --muted: #a0a09a;
    --border: #2d2d2b;
    --accent: #6f95ff;
    --accent-text: #0d0d0d;
    --code-bg: #242422;
    --ok: #4cc38a;
    --wait: #e0a33a;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 820px;
  margin: 0 auto;
  padding: 20px 16px;
}

.brand { color: var(--text); font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }

main { max-width: 820px; margin: 0 auto; padding: 8px 16px 64px; }

h1 { font-size: 30px; line-height: 1.2; letter-spacing: -0.02em; margin: 8px 0 8px; }
h2 { font-size: 20px; margin: 0; }
h3 { font-size: 16px; margin: 0 0 4px; }
.lede { font-size: 18px; color: var(--muted); margin: 0 0 24px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.center { text-align: center; }
.loading { padding: 64px 0; }

.hero { text-align: center; padding: 32px 0 8px; }
.sign-in { display: flex; justify-content: center; padding: 16px 0; }
.intro { padding: 8px 0 4px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 0 0 16px;
}
.card.narrow { max-width: 560px; margin: 48px auto; }
.card p { margin: 10px 0; }
.card ol { padding-left: 20px; margin: 8px 0; }
.card li { margin: 8px 0; }

.step-head { display: flex; align-items: center; gap: 12px; }
.num {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
  font-size: 14px;
  flex: none;
}

code {
  font: 13.5px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--code-bg);
  border-radius: 6px;
  padding: 1px 6px;
}

.secret-row, .cmd {
  display: flex;
  align-items: stretch;
  gap: 8px;
  margin: 10px 0;
}
.secret-row code, .cmd code {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  overflow-x: auto;
  white-space: nowrap;
  border: 1px solid var(--border);
}
.cmd code { white-space: pre-wrap; word-break: break-word; }

button {
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
  flex: none;
}
button:hover { filter: brightness(1.08); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.ghost { background: transparent; color: var(--accent); }
button.link {
  background: none;
  border: 0;
  padding: 0;
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
}

.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0 8px; }
.tabs button { background: transparent; color: var(--text); border-color: var(--border); }
.tabs button[aria-selected="true"] { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }

.status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-weight: 600;
}
.status .dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.status[data-status="waiting"] { color: var(--wait); }
.status[data-status="waiting"] .dot { background: var(--wait); animation: pulse 1.4s ease-in-out infinite; }
.status[data-status="connected"] { color: var(--ok); }
.status[data-status="connected"] .dot { background: var(--ok); }
@keyframes pulse { 50% { opacity: 0.3; } }

.use { margin-top: 32px; }
.use > p { margin: 4px 0 12px; }

.playbooks { display: grid; gap: 12px; }
.playbook { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.playbook p { margin: 4px 0; font-size: 14px; }

.activity { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; font-size: 14px; }
.activity th, .activity td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.activity th { color: var(--muted); font-weight: 600; }
.activity tr:last-child td { border-bottom: 0; }

#toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
}

@media (max-width: 560px) {
  h1 { font-size: 24px; }
  .card { padding: 18px; }
  .secret-row { flex-wrap: wrap; }
  .secret-row code { flex-basis: 100%; }
  .activity th:last-child, .activity td:last-child { display: none; }
}