:root {
  --bg: #0e0f12;
  --panel: #151822;
  --card: #1a1f2c;
  --text: #e9ecf1;
  --muted: #aab2c0;
  --line: rgba(255,255,255,0.08);
  --accent: #6aa9ff;
  --danger: #ff6a6a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Noto Sans JP", sans-serif;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(0,0,0,0.2);
}
.title { font-weight: 700; letter-spacing: 0.2px; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  gap: 6px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
  font-size: 12px;
}
.badge b { color: var(--text); }

.container { padding: 16px; }

.panel { max-width: 1200px; margin: 0 auto; }
.hidden { display: none; }

.grid2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 900px) {
  .grid2 { grid-template-columns: 1fr 1fr; }
}

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

.row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  align-items: center;
  margin: 10px 0;
}
.row label { color: var(--muted); font-size: 13px; }
input, select {
  width: 100%;
  padding: 10px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.25);
  color: var(--text);
  outline: none;
}
button {
  grid-column: 1 / -1;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(106,169,255,0.18);
  color: var(--text);
  cursor: pointer;
}
button.secondary {
  background: rgba(255,255,255,0.06);
}
button:disabled { opacity: 0.45; cursor: not-allowed; }

.kv {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 6px 10px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}
.kv b { color: var(--text); }

.meter { margin-top: 10px; }
.meter-label { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.meter-bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--line);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 80ms linear;
}

.log {
  margin: 0;
  height: 220px;
  overflow: auto;
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  color: #cfd6e6;
  font-size: 12px;
  line-height: 1.45;
}

.channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}
@media (min-width: 900px) {
  .channels { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1200px) {
  .channels { grid-template-columns: 1fr 1fr 1fr; }
}

.ch-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
}
.ch-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 10px;
}
.ch-title { font-weight: 700; }
.ch-sub { color: var(--muted); font-size: 12px; }