:root {
  --fg: #141414;
  --muted: #666;
  --bg: #fafafa;
  --card: #fff;
  --border: #e5e5e5;
  --accent: #111;
  --danger: #b1342a;
  --error-bg: #fdecea;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.wordmark { height: 40px; width: auto; margin-bottom: 24px; }
.wordmark-sm { height: 26px; width: auto; }
.brand-mark-sm { height: 36px; width: 36px; display: block; }
.card h1 { font-size: 20px; margin: 0 0 20px; }
.card label { display: block; text-align: left; font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.card input[type="password"], .card input[type="text"] {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
}
button {
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
button.danger { background: var(--danger); }
button:hover { opacity: 0.9; }

.error {
  background: var(--error-bg);
  color: #8a1a1a;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin: 0 0 16px;
}

body.app { display: flex; flex-direction: column; height: 100vh; }
.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 12px 20px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.topbar .wordmark-sm { justify-self: start; }
.client-name { font-weight: 600; }
.logout { justify-self: end; margin: 0; }
.logout button { background: transparent; color: var(--fg); border: 1px solid var(--border); }

.tabs {
  display: flex;
  gap: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
}
.tab {
  background: transparent;
  color: var(--muted);
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 12px 18px;
  font-size: 14px;
}
.tab.active { color: var(--fg); border-bottom-color: var(--accent); }

.frame-wrap { flex: 1; background: #fff; }
#artifact { width: 100%; height: 100%; border: 0; display: block; }

.admin { max-width: 960px; margin: 32px auto; padding: 0 20px; }
.admin h1 { font-size: 22px; }
.add-client { display: flex; gap: 8px; margin: 16px 0; }
.add-client input { flex: 1; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 14px; }
tbody tr:last-child td { border-bottom: 0; }
.muted { color: var(--muted); }

.success {
  background: #e6f4ea;
  color: #1b5e20;
  border: 1px solid #b7dfc2;
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
}

.inline-set { display: inline-flex; gap: 4px; margin-right: 6px; }
.inline-set input {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  width: 160px;
}
.inline-set button { padding: 6px 10px; font-size: 13px; }

.reveal {
  background: #fff8dc;
  border: 1px solid #e0c97a;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.reveal pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #fff;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 15px;
  user-select: all;
}
.reveal .ack { display: inline-flex; align-items: center; gap: 6px; margin: 0 12px; font-size: 13px; }