:root {
  --bg: #0f1419;
  --panel: #1a212b;
  --panel-2: #232c38;
  --border: #2e3a48;
  --text: #e6edf3;
  --muted: #8b98a5;
  --accent: #2f81f7;
  --record: #f7544e;
  --pause: #3fb950;
}

* { box-sizing: border-box; }

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

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

header h1 { font-size: 18px; margin: 0; }

.header-right { display: flex; align-items: center; gap: 8px; }
.header-right label { color: var(--muted); font-size: 13px; }

select, button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-size: 13px;
  cursor: pointer;
}

select { min-width: 160px; }

.tabs, .subtabs { display: flex; gap: 4px; padding: 12px 20px 0; }
.tab, .subtab {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--muted);
  padding: 8px 14px;
}
.tab.active, .subtab.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 20px; max-width: 900px; margin: 0 auto; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.hidden { display: none !important; }
.empty { color: var(--muted); padding: 40px; text-align: center; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}

.state-row { display: flex; gap: 32px; margin-bottom: 24px; flex-wrap: wrap; }
.label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.big-state { font-size: 26px; font-weight: 700; margin-top: 4px; }
.big-state.muted { color: var(--muted); font-weight: 600; }

.state-RECORD { color: var(--record); }
.state-PAUSE { color: var(--pause); }
.online-true { color: var(--pause); }
.online-false { color: var(--record); }

.toggle-btn {
  width: 100%;
  padding: 18px;
  font-size: 18px;
  font-weight: 700;
  border-radius: 10px;
  border: none;
  color: #fff;
}
.toggle-btn.to-pause { background: var(--pause); }
.toggle-btn.to-record { background: var(--record); }
.toggle-btn:disabled { opacity: 0.6; cursor: default; }

.hint { color: var(--muted); font-size: 13px; margin-top: 12px; text-align: center; }

.list { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.rec-item {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.rec-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.rec-title { font-weight: 600; font-size: 14px; }
.rec-meta { color: var(--muted); font-size: 12px; }
.rec-item audio { width: 100%; margin-top: 10px; }
.rec-actions a { color: var(--accent); font-size: 13px; text-decoration: none; }

.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.status-cell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
}
.status-cell .label { margin-bottom: 6px; }
.status-cell .value { font-size: 18px; font-weight: 600; }