:root {
  color-scheme: light;
  font-family: "IBM Plex Mono", "SFMono-Regular", "Menlo", monospace;
  --bg: #0b0b0b;
  --panel: #111111;
  --ink: #f5f5f5;
  --muted: #b4b4b4;
  --accent: #2f6bff;
  --border: #2a2a2a;
  --danger: #ff4d4f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.brand {
  font-size: 1.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.status {
  padding: 6px 12px;
  border-radius: 999px;
  background: #1b1b1b;
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.status.online {
  background: #0f1e4d;
  color: #dbe6ff;
  border-color: #28459b;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: none;
}

.card + .card {
  margin-top: 24px;
}

h1 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 2rem;
}

h2 {
  margin-top: 0;
  font-size: 1.4rem;
}

h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

p {
  margin: 0 0 16px;
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
}

input,
select,
button {
  font: inherit;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f0f0f;
  color: var(--ink);
}

button {
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(47, 107, 255, 0.25);
}

button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
}

.stack {
  display: grid;
  gap: 12px;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.muted {
  color: var(--muted);
}

.hidden {
  display: none;
}

.hint {
  margin-top: 12px;
  font-size: 0.9rem;
}

.hint.error {
  color: var(--danger);
}

.row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.badge {
  padding: 4px 8px;
  background: #1b1b1b;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
}

.video-shell {
  position: relative;
  margin: 20px 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}

video {
  width: 100%;
  max-height: 70vh;
  background: #111;
}

.video-overlay {
  display: none;
}

.controls {
  display: flex;
  gap: 12px;
  flex-direction: row;
  flex-wrap: wrap;
}

.invite-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.invite-section {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.controls button {
  background: #0f0f0f;
  color: white;
  border: 1px solid var(--border);
}

.admin-panel {
  margin-top: 28px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.invite-list {
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
  margin-top: 12px;
}

.invite-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0f0f0f;
}

@media (max-width: 720px) {
  .shell {
    padding: 20px 16px 40px;
  }

  .card {
    padding: 20px;
  }

  .controls {
    flex-direction: column;
    align-items: stretch;
  }
}