:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.4;
  --tg-bg-color: #0f172a;
  --tg-text-color: #f8fafc;
  --tg-hint-color: #94a3b8;
  --tg-button-color: #3b82f6;
  --tg-button-text-color: #ffffff;
  --surface-color: rgba(148, 163, 184, 0.12);
  --surface-border: rgba(148, 163, 184, 0.24);
  --accent-gradient: linear-gradient(135deg, rgba(59, 130, 246, 0.4), rgba(99, 102, 241, 0.4));
  --shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--tg-bg-color);
  color: var(--tg-text-color);
}

.app {
  min-height: 100vh;
  padding: 16px 16px 96px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.header__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button {
  border: 1px solid var(--surface-border);
  background: var(--surface-color);
  color: var(--tg-text-color);
  border-radius: 12px;
  padding: 6px 10px;
  font-size: 1rem;
  cursor: pointer;
}

.icon-button:active {
  transform: scale(0.97);
}

.api-badge {
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.api-badge--checking {
  background: rgba(148, 163, 184, 0.18);
  border-color: rgba(148, 163, 184, 0.4);
  color: var(--tg-hint-color);
}

.api-badge--ok {
  background: rgba(34, 197, 94, 0.2);
  border-color: rgba(34, 197, 94, 0.6);
  color: #bbf7d0;
}

.api-badge--offline {
  background: rgba(248, 113, 113, 0.2);
  border-color: rgba(248, 113, 113, 0.6);
  color: #fecaca;
}

.segment {
  display: flex;
  gap: 6px;
  background: var(--surface-color);
  border-radius: 16px;
  padding: 4px;
}

.segment__button {
  flex: 1;
  padding: 8px 12px;
  border: none;
  border-radius: 12px;
  background: transparent;
  color: var(--tg-text-color);
  font-weight: 600;
  cursor: pointer;
}

.segment__button.is-active {
  background: var(--accent-gradient);
  box-shadow: var(--shadow-soft);
}

.tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.tab {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: transparent;
  color: var(--tg-text-color);
  white-space: nowrap;
  font-size: 0.85rem;
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 28px;
}

.chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  font-size: 0.75rem;
  color: var(--tg-hint-color);
}

.list-area {
  flex: 1;
  border-radius: 18px;
  border: 1px dashed var(--surface-border);
  background: rgba(15, 23, 42, 0.2);
}

.bottom-bar {
  position: fixed;
  bottom: 12px;
  left: 12px;
  right: 12px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  padding: 10px;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(8px);
}

.bottom-bar__input {
  width: 100%;
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 10px 12px;
  background: transparent;
  color: var(--tg-text-color);
}

.bottom-bar__input::placeholder {
  color: var(--tg-hint-color);
}

.bottom-bar__button {
  border: none;
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--tg-button-color);
  color: var(--tg-button-text-color);
  font-weight: 600;
  cursor: pointer;
}

.bottom-bar__button--ghost {
  background: var(--surface-color);
  border: 1px solid var(--surface-border);
  color: var(--tg-text-color);
}

@media (max-width: 420px) {
  .app {
    padding: 14px 14px 100px;
  }

  .header__title {
    font-size: 1.35rem;
  }
}