:root {
  --bg: #0f172a;
  --panel: #111c3a;
  --accent: #22d3ee;
  --accent-2: #38bdf8;
  --text: #e2e8f0;
  --muted: #94a3b8;
  font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, rgba(56, 189, 248, 0.15), transparent 40%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app-shell {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

header {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 32px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0;
}

.subtitle {
  color: var(--muted);
  margin: 4px 0 0;
  max-width: 640px;
}

.layout-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.panel {
  background: var(--panel);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(56, 189, 248, 0.12);
}

.panel h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 360px;
  overflow-y: auto;
}

.thread-card,
.log-entry {
  padding: 12px;
  background: rgba(15, 23, 42, 0.8);
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.9);
  cursor: pointer;
  transition: border 0.2s ease-in-out, transform 0.2s ease;
}

.thread-card:hover,
.thread-card.active {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.thread-meta,
.log-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--muted);
}

.thread-title {
  font-weight: 600;
  margin: 0;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.profile-row,
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(14, 165, 233, 0.08);
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 0.95rem;
}

.preview {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(15, 23, 42, 0.5);
  border-radius: 16px;
  padding: 16px;
  min-height: 190px;
}

.preview button {
  padding: 8px 14px;
  font-size: 0.9rem;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: black;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s ease;
}

.preview button:hover {
  background: var(--accent-2);
}

.preview-text {
  white-space: pre-wrap;
  word-break: break-word;
  flex: 1;
  color: var(--text);
}

.badge {
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.2);
  color: var(--accent);
  font-weight: 600;
}

@media (max-width: 768px) {
  .app-shell {
    padding: 20px 16px 32px;
  }

  .panel {
    padding: 16px;
  }

  .preview {
    min-height: 160px;
  }
}