:root {
  --tg-bg: #ffffff;
  --tg-text: #111111;
  --tg-hint: #707579;
  --tg-button: #3390ec;
  --tg-button-text: #ffffff;
  --tg-secondary-bg: #f4f4f5;
  --danger: #e53e3e;
  --success: #2f9e44;
}

@media (prefers-color-scheme: dark) {
  :root {
    --tg-bg: #17212b;
    --tg-text: #f5f5f5;
    --tg-hint: #8a97a3;
    --tg-secondary-bg: #232e3c;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--tg-bg);
  color: var(--tg-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  height: 100%;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  padding: 12px 16px;
  border-bottom: 1px solid var(--tg-secondary-bg);
  position: sticky;
  top: 0;
  background: var(--tg-bg);
  z-index: 5;
}
.topbar h1 { font-size: 18px; margin: 0; }

#content {
  flex: 1;
  padding: 12px 16px 90px;
  overflow-y: auto;
}

.tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  border-top: 1px solid var(--tg-secondary-bg);
  background: var(--tg-bg);
}
.tab-btn {
  flex: 1;
  padding: 12px 0;
  background: none;
  border: none;
  color: var(--tg-hint);
  font-size: 14px;
}
.tab-btn.active { color: var(--tg-button); font-weight: 600; }
.badge {
  display: inline-block;
  background: var(--danger);
  color: #fff;
  border-radius: 10px;
  padding: 0 6px;
  font-size: 11px;
  margin-left: 4px;
}

.list-item, .card {
  background: var(--tg-secondary-bg);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 8px;
}
.list-item { display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.card h3 { margin: 0 0 4px; font-size: 15px; }
.card .meta { color: var(--tg-hint); font-size: 13px; margin-bottom: 8px; }

.btn {
  display: inline-block;
  background: var(--tg-button);
  color: var(--tg-button-text);
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  width: 100%;
}
.btn.secondary { background: var(--tg-secondary-bg); color: var(--tg-text); }
.btn.danger { background: var(--danger); color: #fff; width: auto; padding: 6px 12px; }
.btn:disabled { opacity: 0.5; }

.field { margin-bottom: 10px; }
.field label { display: block; font-size: 13px; color: var(--tg-hint); margin-bottom: 4px; }
.field input, .field textarea {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--tg-secondary-bg);
  background: var(--tg-bg);
  color: var(--tg-text);
  font-size: 14px;
}

.hint { color: var(--tg-hint); font-size: 12px; }
.error-text { color: var(--danger); font-size: 13px; margin-top: 4px; }
.empty-state { text-align: center; color: var(--tg-hint); padding: 40px 0; }

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 8px;
  font-size: 12px;
  background: var(--tg-secondary-bg);
}
.status-completed { color: var(--success); }
.status-error, .status-canceled { color: var(--danger); }

.cart-item { display: flex; flex-direction: column; gap: 6px; }
.cart-item-top { display: flex; justify-content: space-between; align-items: center; }
.cart-item-qty { display: flex; align-items: center; gap: 8px; }
.cart-item-qty input { width: 90px; }

.total-row {
  display: flex;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 600;
  margin: 12px 0;
}