:root {
  --bg: #0f172a;
  --card: #111827;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #22c55e;
  --accent-2: #38bdf8;
  --danger: #ef4444;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 800px at 10% 10%, #1f2937 0%, #0b1220 55%, #0a0f1a 100%);
  color: var(--text);
}

.app { max-width: 960px; margin: 0 auto; padding: 16px; }

.header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo { width: 40px; height: 40px; border-radius: 10px; border: 1px solid #1f2937; }
.brand-text {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(90deg, #f59e0b 0%, #fb923c 50%, #f97316 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.tab {
  background: #111827;
  color: var(--text);
  border: 1px solid #1f2937;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.tab.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(34,197,94,0.2);
}

.panel { display: grid; gap: 12px; }
.hidden { display: none; }

.card {
  background: var(--card);
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 14px;
}

.card h3 { margin: 0 0 6px; font-size: 16px; }
.card .muted { color: var(--muted); font-size: 12px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  margin-right: 6px;
  background: #0b1220;
  border: 1px solid #1f2937;
}

.badge.ok { border-color: var(--accent); color: var(--accent); }
.badge.info { border-color: var(--accent-2); color: var(--accent-2); }
.badge.bad { border-color: var(--danger); color: var(--danger); }

.list { display: grid; gap: 8px; }
.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px;
  border: 1px solid #1f2937;
  border-radius: 10px;
  background: #0b1220;
}

.small { font-size: 12px; color: var(--muted); }

.btn {
  margin-top: 8px;
  background: #0b1220;
  color: var(--text);
  border: 1px solid #1f2937;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent-2); }

.praise-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 8px;
  align-items: center;
  margin-top: 8px;
}

select {
  background: #0b1220;
  color: var(--text);
  border: 1px solid #1f2937;
  border-radius: 8px;
  padding: 6px 8px;
}

.speed-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px dashed #1f2937;
}
.speed-row:last-child { border-bottom: none; }

@media (max-width: 640px) {
  .tabs { grid-template-columns: repeat(2, 1fr); }
}