:root {
  --bg: var(--tg-theme-bg-color, #0f1419);
  --text: var(--tg-theme-text-color, #e7ecf1);
  --hint: var(--tg-theme-hint-color, #8b98a5);
  --btn: var(--tg-theme-button-color, #2aabee);
  --btn-text: var(--tg-theme-button-text-color, #fff);
  --sec: var(--tg-theme-secondary-bg-color, #1a2332);
  --border: color-mix(in srgb, var(--hint) 35%, transparent);
  --user-bubble: color-mix(in srgb, var(--btn) 28%, var(--sec));
  --admin-bubble: var(--sec);
  --danger: #e85d5d;
  --ok: #3ecf8e;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 12px 14px 88px;
  min-height: 100vh;
}

h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.muted { color: var(--hint); margin: 4px 0 0; }
.small { font-size: 0.82rem; }
.empty { margin-top: 2rem; color: var(--hint); }
code {
  font-size: 0.85em;
  background: var(--sec);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.top-actions { display: flex; gap: 8px; flex-shrink: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 10px;
  padding: 8px 14px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  color: var(--btn-text);
  background: var(--btn);
}

.btn.ghost {
  background: var(--sec);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.danger { background: var(--danger); color: #fff; }
.btn.primary { background: var(--btn); }
.btn.block { width: 100%; margin-top: 8px; padding: 12px; }

.ticket-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ticket-list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--sec);
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
}

.ticket-list a:active { border-color: var(--btn); }

.badge {
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--hint) 25%, transparent);
}

.badge.open { background: color-mix(in srgb, var(--ok) 30%, transparent); }
.badge.answered { background: color-mix(in srgb, var(--btn) 35%, transparent); }
.badge.closed { background: color-mix(in srgb, var(--hint) 30%, transparent); }

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  overflow-x: auto;
}

.tabs a {
  flex: 1;
  text-align: center;
  text-decoration: none;
  color: var(--hint);
  background: var(--sec);
  padding: 10px 8px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.tabs a.active {
  color: var(--btn-text);
  background: var(--btn);
}

.tabs .count {
  display: inline-block;
  min-width: 1.2em;
  opacity: 0.9;
}

.form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
  font-weight: 600;
  font-size: 0.9rem;
}

.form input,
.form textarea,
.composer textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--sec);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

.form input:focus,
.form textarea:focus,
.composer textarea:focus {
  outline: 2px solid color-mix(in srgb, var(--btn) 55%, transparent);
  border-color: var(--btn);
}

.banner {
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--sec);
  margin-bottom: 12px;
}

.banner.error,
.error { color: #ffb4b4; }

.gate {
  text-align: center;
  padding: 3rem 1rem;
}

.spinner {
  width: 28px;
  height: 28px;
  margin: 1.5rem auto 0;
  border: 3px solid var(--border);
  border-top-color: var(--btn);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
  min-height: 40vh;
}

.bubble {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--admin-bubble);
}

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

.bubble.admin {
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.bubble .meta {
  font-size: 0.72rem;
  color: var(--hint);
  margin-bottom: 4px;
}

.bubble .text {
  white-space: pre-wrap;
  word-break: break-word;
}

.composer {
  position: sticky;
  bottom: 0;
  padding: 10px 0 4px;
  background: linear-gradient(transparent, var(--bg) 18%);
}

.composer-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.composer-actions .btn { flex: 1; }