:root {
  --bg: var(--tg-theme-bg-color, #17212b);
  --text: var(--tg-theme-text-color, #f5f5f5);
  --hint: var(--tg-theme-hint-color, #708499);
  --link: var(--tg-theme-link-color, #6ab3f3);
  --button: var(--tg-theme-button-color, #5288c1);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --card-bg: var(--tg-theme-secondary-bg-color, #232e3c);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

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

.badge { font-size: 18px; }
.badge.hidden { display: none; }

#tabs {
  display: flex;
  gap: 4px;
  padding: 0 12px 8px;
}

.tab-btn {
  flex: 1;
  padding: 8px 4px;
  border: none;
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--button);
  color: var(--button-text);
}

main { padding: 0 12px 24px; }

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

.card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
}

.card h2 {
  font-size: 13px;
  margin: 0 0 8px;
  color: var(--hint);
  text-transform: uppercase;
}

.loading, .hint { color: var(--hint); font-size: 13px; }

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { text-align: left; padding: 4px 6px; border-bottom: 1px solid rgba(255,255,255,0.06); }
th { color: var(--hint); font-weight: normal; }

pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 11px;
  background: rgba(0,0,0,0.15);
  padding: 8px;
  border-radius: 6px;
  max-height: 260px;
  overflow-y: auto;
}
pre.hidden { display: none; }

.kv { display: flex; justify-content: space-between; padding: 3px 0; font-size: 13px; }
.kv .k { color: var(--hint); }

.status-ok { color: #4caf50; }
.status-warn { color: #ff9800; }
.status-err { color: #f44336; }

#history-chart {
  display: block;
  width: 100%;
  height: 160px;
}

button.cmd-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  margin-bottom: 6px;
  border: none;
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 13px;
}
button.cmd-btn:active { opacity: 0.7; }
button.cmd-btn .desc { display: block; color: var(--hint); font-size: 11px; margin-top: 2px; }

select {
  width: 100%;
  margin-bottom: 8px;
  padding: 6px;
  background: var(--card-bg);
  color: var(--text);
  border: 1px solid var(--hint);
  border-radius: 6px;
}

.maint-entry { margin-bottom: 10px; }
.maint-entry .fname { font-size: 12px; color: var(--hint); }