:root {
  color-scheme: dark;
  --bg: #111412;
  --panel: #1b211d;
  --panel-2: #222a25;
  --text: #edf4ee;
  --muted: #9ead9f;
  --line: #334037;
  --on: #35c96f;
  --danger: #d85050;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app {
  width: min(720px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
}

.status {
  min-width: 88px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  text-align: center;
  color: var(--muted);
}

.status-online {
  border-color: color-mix(in srgb, var(--on) 55%, var(--line));
  color: var(--on);
}

.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 12px;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 96px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}

button:active {
  transform: translateY(1px);
}

.power-button.is-on {
  border-color: color-mix(in srgb, var(--on) 70%, var(--line));
  background: color-mix(in srgb, var(--on) 20%, var(--panel-2));
  color: #f6fff8;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 16px;
}

.group-button,
.danger-button {
  min-height: 48px;
  padding: 0 18px;
}

.group-button {
  background: var(--panel-2);
}

.danger-button {
  border-color: color-mix(in srgb, var(--danger) 70%, var(--line));
  background: color-mix(in srgb, var(--danger) 18%, var(--panel));
}

.logout-link {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.logout-link:hover {
  color: var(--text);
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 20px;
}

.login-form {
  display: grid;
  width: min(360px, 100%);
  gap: 16px;
}

.login-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

.login-form input {
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 48px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  padding: 0 12px;
}

.login-button {
  min-height: 52px;
  background: var(--panel-2);
}

.login-error {
  margin: 0;
  color: #ff8b8b;
}

@media (max-width: 480px) {
  .app {
    padding: 16px;
  }

  .topbar {
    align-items: flex-start;
  }

  .topbar-actions {
    align-items: flex-end;
    flex-direction: column;
  }

  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}