:root {
    --bg: #f4f5fb;
    --card-bg: #ffffff;
    --primary: #6b4ee6;
    --primary-soft: #f1ecff;
    --accent: #6b4ee6;
    --accent-blue: #4f8df9;
    --border: #e0e0e0;
    --text-main: #212121;
    --text-muted: #757575;
    --radius: 10px;
    --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
    --gap: 16px;
    --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  }
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  body.page {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text-main);
  }
  
  .topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: auto minmax(0, 1.4fr) auto;
    align-items: center;
    gap: 16px;
    padding: 12px 32px;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
  }
  
  .topbar__left,
  .topbar__center,
  .topbar__right {
    display: flex;
    align-items: center;
  }
  
  .topbar__left {
    gap: 8px;
  }
  
  .topbar__logo {
    font-weight: 400;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--primary);
  }
  
  .topbar__logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--accent-blue);
  }
  
  .topbar__center {
    justify-content: center;
  }
  
  .topbar__search {
    width: 100%;
    max-width: 640px;
    position: relative;
  }
  
  .topbar__search-input {
    width: 100%;
    padding: 11px 44px 11px 16px;
    border-radius: 999px;
    border: 1px solid #dde1ee;
    background: #f7f8fc;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  }
  
  .topbar__search-input::placeholder {
    color: #a0a4b8;
  }
  
  .topbar__search-input:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(107, 78, 230, 0.18);
  }
  
  .topbar__search-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.1rem;
    color: #a0a4b8;
    pointer-events: none;
  }
  
  .topbar__right {
    gap: 10px;
  }
  
  .topbar__icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid #e0e3f0;
    background: #f9fafc;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #63688d;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
  }
  
  .topbar__icon-btn:hover {
    background: #f0f2ff;
    border-color: #c4c8e6;
    transform: translateY(-1px);
  }
  
  .topbar__primary-btn {
    padding-inline: 18px;
    background: linear-gradient(135deg, #7b5cff, #6242de);
    color: #ffffff;
    border-radius: 999px;
    border: none;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: 0 12px 24px rgba(98, 66, 222, 0.35);
    white-space: nowrap;
  }
  
  .topbar__primary-btn:hover {
    filter: brightness(1.05);
  }
  
  .topbar__primary-btn span {
    font-size: 1rem;
  }
  
  .layout {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px;
  }
  
  .layout--two-columns {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 24px;
  }
  
  .layout--post {
  align-items: flex-start;
}

.post-main-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.post-sidebar-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 400px) {
  .post-sidebar-column {
    position: sticky;
    top: 88px;
  }
}
  
  @media (max-width: 400px) {
    .layout--two-columns {
      grid-template-columns: 1fr;
    }
  }
  
  .card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
    padding: 20px;
    border: 1px solid #f0f0f0;
  }
  
  .card--primary {
    border-top: 4px solid var(--primary);
  }
  
  .post {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
    gap: 24px;
  }
  
  @media (max-width: 900px) {
    .post {
      grid-template-columns: 1fr;
    }
  }
  
  .post__image-wrapper {
    background: #fafafa;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .post__image {
    max-width: 100%;
    border-radius: calc(var(--radius) - 4px);
  }
  
  .post__title {
    margin: 0 0 4px;
    font-size: 1.5rem;
  }
  
  .post__subtitle {
    margin: 0 0 16px;
    color: var(--text-muted);
    font-size: 0.95rem;
  }
  
  .post__price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 12px 0 16px;
    border-bottom: 1px dashed var(--border);
  }
  
  .post__price-main {
    font-size: 1.8rem;
    font-weight: 400;
  }
  
  .post__price-label {
    color: var(--text-muted);
    font-size: 0.85rem;
  }
  
  .post__meta {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .meta-label {
    font-weight: 600;
    color: var(--text-main);
  }
  
  .post__section {
    margin-top: 20px;
  }
  
  .post-gallery-card {
    padding-bottom: 16px;
  }

  .post-breadcrumbs {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }

  .post-gallery {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
  }

  .post-gallery__nav {
    border: none;
    background: #ffffff;
    border-radius: 999px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
    color: var(--text-muted);
  }

  .post-gallery__nav:hover {
    background: #f2f2f2;
  }

  .post-thumbs {
    display: flex;
    gap: 8px;
    margin-top: 12px;
  }

  .post-thumb {
    flex: 1;
    min-width: 52px;
    height: 48px;
    border-radius: 8px;
    background: #eeeeee;
    border: 1px solid var(--border);
  }

  .post-thumb--active {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary-soft);
    background: var(--primary-soft);
  }

  .post-details-card,
  .post-extra-card {
    padding-top: 16px;
  }

  .post-params {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.9rem;
  }

  .post-param-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-bottom: 1px dashed var(--border);
    padding: 4px 0;
  }

  .post-param-row span:first-child {
    color: var(--text-muted);
  }

  .post-sidebar-card {
    padding-top: 16px;
  }

  .post__title-wrap {
    margin-bottom: 8px;
  }

  .post__title-wrap .post__title {
    font-size: 1.3rem;
  }

  .post__price-box {
    margin-top: 8px;
    margin-bottom: 8px;
  }

  .post-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0 12px;
  }

  .badge {
    font-size: 0.7rem;
    padding: 4px 8px;
    border-radius: 999px;
    background: #f1f3f4;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 600;
  }

  .badge--state {
    background: #e8f5e9;
    color: #2e7d32;
  }

  .badge--private {
    background: #e3f2fd;
    color: #1565c0;
  }

  .post-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 10px 0 12px;
  }

  .post-actions__secondary {
    background: #f5f5f5;
    color: var(--text-main);
  }

  .post-actions__secondary:hover {
    background: #e0e0e0;
  }

  .post-sidebar-meta {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    margin-top: 4px;
    font-size: 0.9rem;
  }

  .post-sidebar-meta__row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 4px;
    color: var(--text-muted);
  }

  .post-sidebar-info {
    font-size: 0.85rem;
  }

  .post-sidebar-info__title {
    margin: 0 0 8px;
    font-size: 0.95rem;
  }

  .post-sidebar-info__text {
    margin: 0;
    color: var(--text-muted);
  }
  
  .seller-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  
  .seller-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .seller-card__avatar {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f1ecff, #e3f2fd);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b4ee6;
    font-weight: 400;
    font-size: 0.95rem;
  }
  
  .seller-card__meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.85rem;
  }
  
  .seller-card__nick {
    font-weight: 600;
  }
  
  .seller-card__info {
    color: var(--text-muted);
  }
  
  .seller-card__badge {
    align-self: flex-start;
    font-size: 0.7rem;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
  }
  
  .seller-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
  }
  
  .seller-card__actions .btn {
    flex: 1 1 180px;
  }
  
  .section-title {
    margin: 0 0 12px;
    font-size: 1.1rem;
  }
  
  .section-title + p {
    margin-top: 0;
  }
  
  .btn {
    border: none;
    border-radius: 999px;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
  }
  
  .btn--accent {
    background: var(--accent);
    color: #ffffff;
  }
  
  .btn--accent:hover {
    filter: brightness(1.05);
  }
  
  .btn--full {
    width: 100%;
  }
  
  .btn--outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid rgba(107, 78, 230, 0.4);
  }
  
  .btn--outline:hover {
    background: var(--primary-soft);
  }
  
  .summary-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 8px 0 16px;
    border-bottom: 1px dashed var(--border);
  }
  
  .summary-item__title {
    font-weight: 600;
  }
  
  .summary-item__meta {
    font-size: 0.85rem;
    color: var(--text-muted);
  }
  
  .summary-item__price {
    font-weight: 400;
  }
  
  .summary-row {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 0.95rem;
  }
  
  .summary-row--total {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-weight: 400;
  }
  
  .payment-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
  }
  
  .payment-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: #fafafa;
  }
  
  .payment-option input[type="radio"] {
    accent-color: var(--primary);
  }
  
  .payment-option label {
    cursor: pointer;
  }
  
  .payment-option--active {
    border-color: var(--primary);
    background: var(--primary-soft);
  }
  
  .payment-option--disabled {
    opacity: 0.6;
    cursor: not-allowed;
  }
  
  .payment-option--disabled label {
    cursor: not-allowed;
  }
  
  .payment-option__note {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: 4px;
  }
  
  .checkout-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .checkout-form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  @media (max-width: 500px) {
    .checkout-form__row {
      grid-template-columns: 1fr;
    }
  }

  .checkout-form__group {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .checkout-form__label {
    font-size: 0.9rem;
    font-weight: 600;
  }

  .checkout-form__input {
    padding: 10px 12px;
    font-size: 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    outline: none;
    background: #fbfbfb;
  }

  .checkout-form__input:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 2px rgba(107, 78, 230, 0.15);
  }

  .section-title--small {
    font-size: 1rem;
    margin-top: 20px;
    margin-bottom: 4px;
  }

  .blik-form {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  
  .blik-form__label {
    font-size: 0.9rem;
    font-weight: 600;
  }
  
  .blik-form__input {
    padding: 10px 12px;
    font-size: 1.3rem;
    letter-spacing: 0.3em;
    text-align: center;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    outline: none;
    background: #fbfbfb;
  }
  
  .blik-form__input:focus {
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 0 2px rgba(30, 136, 229, 0.15);
  }
  
  .blik-form__hint {
    font-size: 0.8rem;
    color: var(--text-muted);
  }
  
  .blik-form__status {
    font-size: 0.85rem;
    min-height: 1.2em;
  }
  
  .blik-form__status--ok {
    color: #2e7d32;
  }
  
  .blik-form__status--error {
    color: #c62828;
  }
  
  .footer {
    padding: 16px 24px 24px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
  }
  
  .post-sidebar-card {
    padding-top: 18px;
  }
  
  .post__title-wrap .post__title {
    font-size: 1.35rem;
    line-height: 1.35;
  }
  
  .post__price-main {
    font-size: 2rem;
  }
  
  .post-badges--compact {
    gap: 6px;
  }
  
  .post-sidebar-section {
    border-top: 1px solid var(--border);
    padding-top: 12px;
    margin-top: 8px;
    font-size: 0.9rem;
  }
  
  .post-sidebar-section__title {
    margin: 0 0 4px;
    font-size: 0.9rem;
    font-weight: 600;
  }
  
  .post-sidebar-section__text {
    margin: 0;
    color: var(--text-muted);
  }
  
  .post-sidebar-section--boxes {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  
  .info-box {
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
  }
  
  .info-box--purple {
    background: #f4f0ff;
    border-color: #d9ccff;
    color: #4b37a9;
  }
  
  .info-box--grey {
    background: #f5f6fa;
    border-color: #e0e3f0;
  }
  
  .section-related {
    max-width: 1100px;
    margin: 0 auto 32px;
    padding: 0 16px;
  }
  
  .section-related__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 14px;
  }
  
  .section-related__subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
  }
  
  .product-row {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 4px;
  }
  
  .product-row::-webkit-scrollbar {
    height: 6px;
  }
  
  .product-row::-webkit-scrollbar-thumb {
    background: #cfd2e5;
    border-radius: 999px;
  }
  
  .product-card {
    min-width: 200px;
    max-width: 220px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: var(--shadow-soft);
    border: 1px solid #f0f0f5;
    display: flex;
    flex-direction: column;
    padding: 10px;
  }
  
  .product-card--wide {
    min-width: 260px;
    max-width: 280px;
  }
  
  .product-card__thumb {
    border-radius: 10px;
    overflow: hidden;
    background: #f5f5f9;
    margin-bottom: 8px;
  }
  
  .product-card__thumb img {
    width: 100%;
    display: block;
  }
  
  .product-card__price {
    font-weight: 400;
    margin-bottom: 4px;
  }
  
  .product-card__title {
    font-size: 0.9rem;
    margin: 0 0 6px;
  }
  
  .product-card__badges {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }
  
  .product-card__badge {
    padding: 2px 6px;
    border-radius: 999px;
    font-size: 0.7rem;
    background: #f3f4ff;
    color: #555b88;
  }