:root {
  --ui-font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --ui-radius-xs: 8px;
  --ui-radius-sm: 12px;
  --ui-radius-md: 16px;
  --ui-radius-lg: 22px;
  --ui-space-1: 4px;
  --ui-space-2: 8px;
  --ui-space-3: 12px;
  --ui-space-4: 16px;
  --ui-space-5: 20px;
  --ui-space-6: 24px;
  --ui-control-h: 44px;
  --ui-border: color-mix(in srgb, var(--tg-theme-hint-color, #8e8e93) 22%, transparent);
  --ui-border-strong: color-mix(in srgb, var(--tg-theme-hint-color, #8e8e93) 38%, transparent);
  --ui-surface: color-mix(in srgb, var(--tg-theme-bg-color, #fff) 96%, var(--tg-theme-text-color, #111) 4%);
  --ui-surface-raised: color-mix(in srgb, var(--tg-theme-bg-color, #fff) 99%, var(--tg-theme-text-color, #111) 1%);
  --ui-surface-muted: color-mix(in srgb, var(--tg-theme-secondary-bg-color, #f2f2f7) 82%, transparent);
  --ui-accent-soft: color-mix(in srgb, var(--tg-theme-button-color, #3390ec) 13%, transparent);
  --ui-danger: #d43b43;
  --ui-danger-soft: color-mix(in srgb, var(--ui-danger) 12%, transparent);
  --ui-shadow: 0 1px 2px rgb(0 0 0 / 5%), 0 10px 30px rgb(0 0 0 / 5%);
  --ui-focus: 0 0 0 3px color-mix(in srgb, var(--tg-theme-button-color, #3390ec) 24%, transparent);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--ui-font);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
[role="button"],
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

:where(button, [role="button"], a, input, select, textarea):focus-visible {
  outline: none;
  box-shadow: var(--ui-focus);
}

.ui-surface {
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-md);
  background: var(--ui-surface-raised);
  box-shadow: var(--ui-shadow);
}

.ui-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ui-space-2);
}

.ui-action {
  min-height: var(--ui-control-h);
  border: 1px solid transparent;
  border-radius: var(--ui-radius-sm);
  padding: 0 var(--ui-space-4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--ui-space-2);
  font-weight: 650;
  line-height: 1.15;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease, background-color 120ms ease;
}

.ui-action:active:not(:disabled) {
  transform: scale(.98);
}

.ui-action:disabled,
.ui-action[aria-disabled="true"] {
  opacity: .48;
  cursor: default;
}

.ui-action.is-primary {
  color: var(--tg-theme-button-text-color, #fff);
  background: var(--tg-theme-button-color, #3390ec);
}

.ui-action.is-secondary {
  color: var(--tg-theme-text-color, #111);
  background: var(--ui-surface-muted);
  border-color: var(--ui-border);
}

.ui-action.is-quiet {
  color: var(--ui-accent-ink, #185fa8);
  background: transparent;
}

.ui-action.is-danger {
  color: var(--ui-danger);
  background: var(--ui-danger-soft);
  border-color: color-mix(in srgb, var(--ui-danger) 18%, transparent);
}

.ui-action[aria-busy="true"] {
  color: transparent;
  position: relative;
}

.ui-action[aria-busy="true"]::after {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  color: var(--tg-theme-button-text-color, #fff);
  position: absolute;
  animation: ui-spin .7s linear infinite;
}

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

.tab {
  min-height: 48px;
}

.tab .ti {
  font-family: var(--ui-font);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.hdr-btn,
.hdr-search,
.help-q {
  min-width: 44px;
  min-height: 44px;
  border-radius: var(--ui-radius-sm);
}

.help-q {
  font-weight: 750;
}

/* Keep header ❓ in the DOM (test_help_buttons) but hide it when the frame
 already has an inline/modal ❓ — otherwise two identical buttons stack. */
body.modal-open #hdr .help-q,
body.more-open #hdr .help-q,
body[data-view="deals"] #hdr .help-q,
body[data-view="refs"] #hdr .help-q,
body[data-view="docs"] #hdr .help-q,
body[data-view="catalog"] #hdr .help-q,
body[data-view="settings"] #hdr .help-q,
body[data-view="suppliers"] #hdr .help-q,
body[data-view="platform"] #hdr .help-q {
  display: none;
}

.more-sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: rgb(0 0 0 / 16%);
  backdrop-filter: blur(2px);
}

#more-sheet .ms-item {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: var(--ui-space-3);
  text-align: start;
}

@media (hover: hover) {
  .ui-action:hover:not(:disabled),
  .tab:hover,
  .hdr-btn:hover,
  .hdr-search:hover {
    filter: brightness(.98);
  }
}

body.dense {
  --ui-control-h: 36px;
  --ui-radius-sm: 10px;
  --ui-radius-md: 14px;
}

@media (max-width: 899px) {
  .ui-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ui-actions > .ui-action:only-child,
  .ui-actions > .ui-action.is-primary:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }
}

@media (max-width: 420px) {
  .ui-actions {
    grid-template-columns: 1fr;
  }

  .ui-actions > .ui-action {
    width: 100%;
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
 *,
 *::before,
 *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}