:root {
  --bg-top: #e6f7ff;
  --bg-bottom: #fff8ea;
  --panel: #fffdf8;
  --panel-border: #e7dcc9;
  --text: #1f2a36;
  --muted: #5f6a74;
  --accent: #0f766e;
  --accent-soft: #d7f5f0;
  --danger: #b42318;
  --danger-soft: #fee4e2;
  --idle: #99a4af;
  --ok: #039855;
  --warn: #dc6803;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.panel {
  width: min(720px, 96vw);
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 16px 48px rgba(25, 29, 33, 0.12);
}

.header h1 {
  margin: 4px 0 8px;
  font-size: clamp(1.8rem, 2vw + 1rem, 2.2rem);
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 600;
}

.sub {
  margin-top: 0;
  color: var(--muted);
}

.grid {
  margin-top: 16px;
}

.grid label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

input {
  width: 100%;
  border: 1px solid #c7d2dd;
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
  color: inherit;
  background: #fff;
}

button {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent-soft);
  color: var(--accent);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button:not(:disabled):hover {
  filter: brightness(0.97);
}

.controls {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.danger {
  background: var(--danger-soft);
  color: var(--danger);
}

.incoming {
  margin-top: 16px;
  border: 1px solid #fdc6c1;
  border-radius: 12px;
  background: #fff1f0;
  padding: 12px;
}

.hidden {
  display: none;
}

.statusBar {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid #d5dfe8;
  border-radius: 10px;
  background: #f8fbff;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot.idle {
  background: var(--idle);
}

.dot.ok {
  background: var(--ok);
}

.dot.warn {
  background: var(--warn);
}

.logWrap {
  margin-top: 18px;
}

.logWrap h2 {
  font-size: 1rem;
  margin: 0 0 8px;
}

pre {
  margin: 0;
  max-height: 220px;
  overflow: auto;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid #d5dfe8;
  background: #f6f9fc;
  font-family: "Consolas", "Courier New", monospace;
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .panel {
    padding: 16px;
    border-radius: 16px;
  }

  .row {
    grid-template-columns: 1fr;
  }

  .controls {
    flex-wrap: wrap;
  }

  button {
    width: 100%;
  }
}