:root {
  --bg: var(--tg-theme-bg-color, #0f0f12);
  --text: var(--tg-theme-text-color, #f5f5f7);
  --hint: var(--tg-theme-hint-color, #8e8e93);
  --accent: var(--tg-theme-button-color, #3390ec);
  --accent-text: var(--tg-theme-button-text-color, #fff);
  --secondary: var(--tg-theme-secondary-bg-color, #1c1c1e);
  --border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
}

.header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header h1 { font-size: 20px; font-weight: 600; margin-bottom: 12px; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.stat-card {
  background: var(--secondary);
  border-radius: 12px;
  padding: 12px;
}

.stat-card .value { font-size: 22px; font-weight: 700; color: var(--accent); }
.stat-card .label { font-size: 12px; color: var(--hint); margin-top: 2px; }

.filters {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
}

.filter {
  border: 1px solid var(--border);
  background: var(--secondary);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}

.filter.active {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.lead-list { padding: 0 16px 24px; }

.lead-card {
  background: var(--secondary);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 10px;
  cursor: pointer;
  border: 1px solid var(--border);
}

.lead-card:active { opacity: 0.85; }

.lead-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.lead-name { font-weight: 600; font-size: 15px; }

.badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 10px;
  font-weight: 600;
}

.badge.blocked { background: #ff453a33; color: #ff453a; }

.lead-actions {
  display: flex;
  gap: 8px;
  margin: 0 16px 12px;
}

.action-btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.action-btn.unblock {
  background: #34c759;
  color: #fff;
}

.action-btn.block {
  background: #ff453a;
  color: #fff;
}

.action-btn:active { opacity: 0.85; }

.badge.new { background: #ff950033; color: #ff9500; }
.badge.qualified { background: #34c75933; color: #34c759; }

.lead-meta { font-size: 12px; color: var(--hint); margin-bottom: 6px; }

.lead-preview {
  font-size: 13px;
  color: var(--hint);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.back-btn {
  margin: 12px 16px;
  background: none;
  border: none;
  color: var(--accent);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 0;
}

.lead-info {
  margin: 0 16px 12px;
  background: var(--secondary);
  border-radius: 14px;
  padding: 14px;
  font-size: 13px;
  line-height: 1.6;
}

.lead-info p { margin-bottom: 4px; }
.lead-info strong { color: var(--hint); font-weight: 500; }

.chat {
  padding: 0 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  word-break: break-word;
}

.bubble.user {
  align-self: flex-end;
  background: var(--accent);
  color: var(--accent-text);
  border-bottom-right-radius: 4px;
}

.bubble.bot {
  align-self: flex-start;
  background: var(--secondary);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.bubble-time {
  font-size: 10px;
  opacity: 0.6;
  margin-top: 4px;
}

.loading, .error {
  text-align: center;
  padding: 40px 16px;
  color: var(--hint);
}

.error { color: #ff453a; }

.hidden { display: none !important; }

.empty {
  text-align: center;
  padding: 40px;
  color: var(--hint);
}