:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --fg: var(--tg-theme-text-color, #111111);
  --muted: var(--tg-theme-hint-color, #777777);
  --accent: var(--tg-theme-button-color, #2ea6ff);
  --card: var(--tg-theme-secondary-bg-color, #f4f4f5);
  --green: #2fb344;
  --yellow: #e8a600;
  --red: #e5484d;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font-family: -apple-system, system-ui, Roboto, sans-serif; }
#app { max-width: 720px; margin: 0 auto; padding: 12px; }
#topbar { display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; margin-bottom: 8px; }
#target-badge { font-weight: 400; color: var(--muted); font-size: 14px; }
#tabs { display: flex; gap: 4px; margin-bottom: 12px; }
.tab { flex: 1; padding: 10px 4px; border: none; border-radius: 8px;
  background: var(--card); color: var(--fg); font-size: 14px; }
.tab.active { background: var(--accent); color: #fff; }
#error { background: var(--red); color: #fff; padding: 10px; border-radius: 8px;
  margin-bottom: 10px; }
.screen { display: flex; flex-direction: column; gap: 8px; }
.card { background: var(--card); border-radius: 10px; padding: 12px; }
.card .big { font-size: 28px; font-weight: 700; }
.label { color: var(--muted); font-size: 13px; }
.zone-green { color: var(--green); }
.zone-yellow { color: var(--yellow); }
.zone-red { color: var(--red); }
.row { display: flex; justify-content: space-between; align-items: center; }
.note { color: var(--muted); font-size: 13px; }
.auto { color: var(--muted); }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; }
.pager button { padding: 8px 16px; border: none; border-radius: 8px;
  background: var(--card); color: var(--fg); }
#chart-nav { display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px; }
#chart-nav button { padding: 6px 14px; border: none; border-radius: 8px;
  background: var(--card); color: var(--fg); font-size: 18px; }
#chart { width: 100%; background: var(--card); border-radius: 10px; }
#chart-tip { background: var(--fg); color: var(--bg); padding: 6px 10px;
  border-radius: 8px; font-size: 13px; display: inline-block; margin-top: 6px; }
.hint { color: var(--muted); text-align: center; padding: 24px 0; }
.center { text-align: center; }
#form-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 50; }
#form-overlay[hidden] { display: none !important; }
.form-box { background: var(--bg); border-radius: 12px; padding: 16px; width: 100%;
  max-width: 420px; }
.form-box h3 { margin: 0 0 8px; font-size: 16px; }
.form-value { font-size: 34px; font-weight: 700; text-align: center; margin: 8px 0; }
.grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.grid-h { grid-template-columns: repeat(6, 1fr); }
.grid button { padding: 12px 0; border: none; border-radius: 8px; background: var(--card);
  color: var(--fg); font-size: 15px; }
.form-actions { display: flex; gap: 8px; margin-top: 12px; }
.form-actions button { flex: 1; padding: 10px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: 15px; }
.form-actions button.secondary { background: var(--card); color: var(--fg); }
#add-btn { width: 100%; padding: 12px; border: none; border-radius: 10px;
  background: var(--accent); color: #fff; font-size: 16px; margin-bottom: 8px; }
.mini { padding: 8px 14px; border: none; border-radius: 8px; background: var(--card);
  color: var(--fg); font-size: 15px; }
#tab-settings[hidden] { display: none !important; }
#screen-settings .row { justify-content: space-between; }