:root {
  --bg: #0f1115;
  --panel: #181b22;
  --fg: #e8eaed;
  --muted: #8b8f99;
  --accent: #6aa3ff;
  --accent-fg: #0f1115;
  --danger: #c84a4a;
  --border: #2a2e38;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body.centered {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

main { width: 100%; max-width: 28rem; }
main.admin { max-width: 44rem; margin: 0 auto; padding: 2rem 1rem; }

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 1.5rem 0 0.75rem; color: var(--muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.meta { color: var(--muted); font-size: 0.9rem; margin-top: 1.5rem; }
.meta a, .linklike { color: var(--muted); text-decoration: underline; background: none; border: none; padding: 0; font: inherit; cursor: pointer; }
.meta a:hover, .linklike:hover { color: var(--fg); }

.big-button {
  display: block;
  width: 100%;
  padding: 2rem 1rem;
  font-size: 1.4rem;
  font-weight: 600;
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: 1rem;
  cursor: pointer;
}
.big-button:active { transform: scale(0.98); }
.big-button:disabled { opacity: 0.6; cursor: wait; }

.status { min-height: 1.5rem; margin: 1rem 0 0; color: var(--muted); text-align: center; }
.status.ok { color: #6acf91; }
.status.err { color: var(--danger); }

/* admin */
.flash {
  background: var(--panel);
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  margin: 1rem 0;
  border-radius: 0.25rem;
}

.invite-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1rem 0 2rem;
}
.invite-card input[type=text] {
  width: 100%;
  padding: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 0.25rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
}
.invite-card .actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }

.row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.row input[type=text] { flex: 1 1 12rem; padding: 0.5rem; background: var(--panel); border: 1px solid var(--border); color: var(--fg); border-radius: 0.25rem; }
.inline { display: inline-block; margin: 0; }
.checkbox { color: var(--muted); }

button, .button {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  cursor: pointer;
  text-decoration: none;
  font: inherit;
}
button:hover, .button:hover { border-color: var(--accent); }
button.danger { background: transparent; color: var(--danger); border-color: transparent; padding: 0.25rem 0.5rem; font-size: 0.85rem; }
button.danger:hover { border-color: var(--danger); }

ul.users { list-style: none; padding: 0; margin: 0; }
ul.users li {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
ul.users .name { font-weight: 500; }
ul.users .badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 0.25rem;
}
ul.users .row-actions { margin-left: auto; display: flex; gap: 0.25rem; align-items: center; }

form.stack { display: flex; flex-direction: column; gap: 0.75rem; }
form.stack input { padding: 0.6rem; background: var(--panel); border: 1px solid var(--border); color: var(--fg); border-radius: 0.25rem; font: inherit; }