:root {
  --bg: var(--tg-theme-bg-color, #fff);
  --fg: var(--tg-theme-text-color, #000);
  --muted: var(--tg-theme-hint-color, #888);
  --accent: var(--tg-theme-button-color, #2481cc);
  --accent-fg: var(--tg-theme-button-text-color, #fff);
  --border: rgba(128, 128, 128, 0.25);
  --danger: #d04040;
  --surface-alt: rgba(128, 128, 128, 0.08);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  font-size: 15px;
}
header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
nav {
  display: flex;
  overflow-x: auto;
  gap: 4px;
  padding: 8px;
}
nav button {
  flex: 0 0 auto;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}
nav button.active {
  color: var(--accent-fg);
  background: var(--accent);
  border-color: var(--accent);
}
main {
  padding: 12px;
}
.tab {
  display: none;
}
.tab.active {
  display: block;
}
h2 {
  margin: 0 0 10px;
  font-size: 18px;
}
.form {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
.form input,
.form select,
.form textarea {
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}
.form button,
.list button {
  padding: 8px 12px;
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: var(--accent-fg);
  cursor: pointer;
}
.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}
.row .meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}
.row .actions {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.row .actions button {
  font-size: 13px;
  padding: 6px 10px;
}
.row .actions button.danger {
  background: var(--danger);
}

.body-preview {
  background: var(--surface-alt);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 4px 0;
}

.badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  background: var(--surface-alt);
  color: var(--muted);
  text-transform: lowercase;
}
.badge-danger {
  background: var(--danger);
  color: #fff;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.right {
  text-align: right;
}

/* ---- Modal ---- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  z-index: 100;
}
.modal-backdrop[hidden] {
  display: none;
}
.modal {
  background: var(--bg);
  color: var(--fg);
  border-radius: 10px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  margin: 0;
  font-size: 16px;
}
.modal-header button {
  background: transparent;
  color: var(--fg);
  border: 0;
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
}
.modal-body {
  padding: 14px;
  overflow: auto;
}

table.receipt {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
  font-size: 14px;
}
table.receipt th,
table.receipt td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
table.receipt th {
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
table.receipt .right {
  text-align: right;
}

#toast {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  font-size: 13px;
  max-width: 90%;
  text-align: center;
  z-index: 200;
}
#toast.visible {
  opacity: 1;
}