:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --card: #1a1d24;
  --fg: #e8ecf1;
  --muted: #9aa3b2;
  --accent: #4c8bf5;
  --accent-fg: #ffffff;
  --danger: #e5484d;
  --ok: #30a46c;
  --border: #262a33;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 32px 16px;
}

.shell {
  width: 100%;
  max-width: 480px;
}

header h1 { margin: 0 0 4px; font-size: 24px; }
.sub { margin: 0 0 24px; color: var(--muted); font-size: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

input[type="text"] {
  background: #0f1218;
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 15px;
  outline: none;
}
input[type="text"]:focus { border-color: var(--accent); }

button {
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }
button.danger { background: var(--danger); }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--border); }

.error { color: var(--danger); font-size: 13px; margin: 0; }

.status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.pill {
  background: #272b35;
  color: var(--muted);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
}
.pill.ok { background: rgba(48, 164, 108, 0.18); color: var(--ok); }
.pill.err { background: rgba(229, 72, 77, 0.18); color: var(--danger); }

.participants {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.participants li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #0f1218;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}
.participants .meter {
  width: 60px;
  height: 6px;
  background: #262a33;
  border-radius: 3px;
  overflow: hidden;
}
.participants .meter > span {
  display: block;
  height: 100%;
  background: var(--ok);
  width: 0%;
  transition: width 80ms linear;
}

.controls { display: flex; gap: 10px; flex-wrap: wrap; }
.controls button { flex: 1 1 90px; }

.hint { font-size: 13px; color: var(--muted); margin: 0; }
.hint.muted { font-size: 12px; opacity: 0.8; }
.hint strong { color: var(--fg); }