:root {
  --buy-mode-red: #de002b;
  --buy-mode-red-soft: rgba(222, 0, 43, 0.06);
  --buy-mode-radius-lg: 24px;
  --buy-mode-radius-sm: 16px;
  --buy-mode-border-width: 2px;
}

.buy-mode {
  border-radius: var(--buy-mode-radius-lg);
  overflow: visible;
  margin-top: 16px;
  background: #fff;
  position: relative;
  z-index: 1;
}

.buy-mode:not(.is-collapsed) {
  border: 1px solid var(--buy-mode-red);
}

.buy-mode__inner {
  display: flex;
  flex-direction: column;
  overflow: visible;
}

.buy-mode__tabs {
  display: flex;
  border-bottom: 1px solid var(--buy-mode-red);
  background: #fff;
  border-radius: var(--buy-mode-radius-lg) var(--buy-mode-radius-lg) 0 0;
  overflow: visible;
  position: relative;
  z-index: 1;
}

.buy-mode__tab {
  flex: 1 1 50%;
  text-align: center;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  cursor: pointer;
  background: #fff;
  color: var(--buy-mode-red);
  border: none;
  outline: none;
  position: relative;
  transition: background 0.2s ease, color 0.2s ease;
}

.buy-mode__tab:first-child {
  border-radius: var(--buy-mode-radius-lg) 0 0 0;
}

.buy-mode__tab:last-child {
  border-radius: 0 var(--buy-mode-radius-lg) 0 0;
}

/* Когда таб один (только ОПТ) — оба верхних угла скруглённые */
.buy-mode__tab:only-child {
  border-radius: var(--buy-mode-radius-lg) var(--buy-mode-radius-lg) 0 0;
}

.buy-mode__tab + .buy-mode__tab::before {
  content: "";
  position: absolute;
  left: 0;
  top: 25%;
  bottom: 25%;
  width: 1px;
  background: rgba(222, 0, 43, 0.3);
}

.buy-mode__tab.is-active {
  background: var(--buy-mode-red);
  color: #fff;
}

.buy-mode__tab.is-active + .buy-mode__tab::before {
  display: none;
}

.buy-mode__tab.is-active .buy-mode__tab-question {
  background: #fff;
  color: #000;
}

.buy-mode__tab-question {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--buy-mode-red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  position: relative;
  cursor: help;
  z-index: 10000;
}

.buy-mode__tab-question::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  white-space: pre-line;
  background: #838487;
  color: #fff !important;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  min-width: 240px;
  max-width: 300px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 99999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  text-transform: none;
}

.buy-mode__tab-question::before {
  content: "";
  position: absolute;
  bottom: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #838487;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 99999;
}

.buy-mode__tab-question:hover::after,
.buy-mode__tab-question:hover::before {
  opacity: 1;
  visibility: visible;
}

.buy-mode__content {
  padding: 14px 16px 16px;
  background: var(--buy-mode-red-soft);
}

.buy-mode__panes {
  display: flex;
  gap: 16px;
}

.buy-mode__pane {
  flex: 1 1 50%;
  opacity: 1;
  overflow: visible;
  max-height: none;
}

.buy-mode__pane[style*="display: none"] {
  display: none !important;
}

.buy-mode__pane--opt {
  display: flex;
  align-items: center;
  justify-content: center;
}

.buy-mode__pane--retail {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.buy-mode__price {
  font-size: 18px;
  font-weight: 700;
  text-align: right;
  align-self: flex-end;
}

.buy-mode__price-note {
  font-size: 12px;
  color: #555;
}

.buy-mode__stock {
  font-size: 12px;
  color: #666;
  margin-top: 4px;
  font-weight: 500;
}

.buy-mode__markets {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.buy-mode__market-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--buy-mode-radius-sm);
  border: 1px solid rgba(0,0,0,0.08);
  background: #fff;
  font-size: 12px;
  cursor: pointer;
  text-decoration: none;
}

.buy-mode__market-btn--wb {
  background: linear-gradient(90deg, #a100ff 0%, #ff2e93 100%);
  color: #ffffff;
  border: none;
}

.buy-mode__market-btn--wb:hover {
  filter: brightness(0.9);
}

.buy-mode__market-btn--ozon {
  background: linear-gradient(90deg, #005bff 0%, #ff2e5a 100%);
  color: #ffffff;
  border: none;
}

.buy-mode__market-btn--ozon:hover {
  filter: brightness(0.9);
}

.buy-mode__market-icon {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: #eee;
}

.buy-mode__trigger {
  padding: 10px 12px;
  text-align: center;
}

.buy-mode__trigger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 220px;
  padding: 10px 18px;
  border-radius: var(--buy-mode-radius-sm);
  border: none;
  background: var(--buy-mode-red);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.buy-mode__trigger-btn:hover {
  background: #b80023;
}

/* Спец-стиль для кнопки "Регистрация" в табе ОПТ */
.buy-mode__pane--opt .buy-mode__trigger-btn {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--buy-mode-red);
  background: #ffffff;
  color: #111;
  padding-right: 58px;
  z-index: 0;
}

.buy-mode__pane--opt .buy-mode__trigger-btn::before {
  content: "";
  position: absolute;
  top: 0;
  right: -30px;
  width: 68px;
  height: 100%;
  background: var(--buy-mode-red);
  border-radius: 0 var(--buy-mode-radius-sm) var(--buy-mode-radius-sm) 0;
  --buy-mode-opt-notch: 34px; /* ширина "носа" слева */
  clip-path: polygon(0 50%, var(--buy-mode-opt-notch) 0, 100% 0, 100% 100%, var(--buy-mode-opt-notch) 100%);
  transform: translateX(0); /* правый край всегда прижат */
  transition: clip-path 0.35s ease;
  pointer-events: none;
  z-index: 0;
}

.buy-mode__pane--opt .buy-mode__trigger-btn::after {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.6) 50%, transparent 100%);
  transform: translateX(-110%);
  transition: transform 0.8s ease;
  pointer-events: none;
}

.buy-mode__pane--opt .buy-mode__trigger-btn:hover {
  transform: translateY(-1px);
}

.buy-mode__pane--opt .buy-mode__trigger-btn:hover::before {
  --buy-mode-opt-notch: 46px; /* выезжает только левый "нос" */
}

.buy-mode__pane--opt .buy-mode__trigger-btn:hover::after {
  transform: translateX(120%);
}


/* collapsed state */
.buy-mode.is-collapsed .buy-mode__inner {
  display: none;
}

.buy-mode.is-collapsed .buy-mode__trigger {
  display: block;
}

.buy-mode:not(.is-collapsed) .buy-mode__trigger {
  display: none;
}

@media (max-width: 767px) {
  .buy-mode__panes {
    flex-direction: column;
  }
}