:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f1f1f4);
  --text: var(--tg-theme-text-color, #1c1c1e);
  --hint: var(--tg-theme-hint-color, #8a8a8e);
  --link: var(--tg-theme-link-color, #2481cc);
  --button: var(--tg-theme-button-color, #2481cc);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --radius: 14px;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--secondary-bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

.hidden { display: none !important; }

/* ---- Topbar ---- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg);
  border-bottom: 1px solid rgba(127,127,127,0.15);
}
.topbar__left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.topbar__logo {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.topbar__title { font-weight: 700; font-size: 17px; }
.icon-btn {
  border: none;
  background: var(--secondary-bg);
  color: var(--text);
  width: 38px; height: 38px;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  transition: transform .2s;
}
.icon-btn.spinning { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Search ---- */
.search { padding: 10px 14px 4px; background: var(--bg); }
.search input {
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-radius: var(--radius);
  background: var(--secondary-bg);
  color: var(--text);
  font-size: 15px;
  outline: none;
}

/* ---- Chips ---- */
.chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 14px;
  background: var(--bg);
  border-bottom: 1px solid rgba(127,127,127,0.15);
  scrollbar-width: none;
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--secondary-bg);
  color: var(--text);
  border: 1px solid transparent;
  font-size: 14px;
  white-space: nowrap;
  cursor: pointer;
}
.chip.active { background: var(--button); color: var(--button-text); }
.chip.critical.active { background: #e0533d; color: #fff; }
.chip.period.active { background: #4a6fa5; color: #fff; }

/* ---- Feed ---- */
.feed { padding: 12px 14px 0; display: flex; flex-direction: column; gap: 12px; }
.card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 13px;
}
.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--secondary-bg);
  color: var(--hint);
}
.badge.critical { background: #e0533d; color: #fff; }
.card__date { margin-left: auto; color: var(--hint); font-size: 12px; }
.card__title { font-weight: 600; margin: 0 0 8px; }
.card__summary { color: var(--text); white-space: pre-wrap; }
.card__summary b { font-weight: 600; }
.card__link {
  display: inline-block;
  margin-top: 10px;
  color: var(--link);
  font-size: 14px;
  text-decoration: none;
  font-weight: 500;
}

/* ---- States ---- */
.status {
  margin: 10px 14px 0;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--hint);
  font-size: 14px;
  text-align: center;
}
.load-more {
  display: block;
  margin: 14px auto;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius);
  background: var(--button);
  color: var(--button-text);
  font-size: 15px;
  cursor: pointer;
}
.empty {
  text-align: center;
  color: var(--hint);
  padding: 48px 20px;
  font-size: 15px;
}
.feed:last-child { padding-bottom: 24px; }