.kvs-container {
    max-width: 1100px;
    margin: 30px auto;
    padding: 16px;
    background: radial-gradient(circle at top, #2b124f 0, #0b0417 40%, #050309 100%);
    border-radius: 20px;
    color: #f7efff;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  }
  
  /* HUD */
  .kvs-hud {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    gap: 16px;
  }
  
  .kvs-logo-pill {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid rgba(229, 183, 255, 0.6);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #f9e8ff;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.05), rgba(117, 52, 182, 0.3));
    backdrop-filter: blur(6px);
  }
  
  .kvs-room-name {
    font-size: 18px;
    font-weight: 600;
    margin-top: 4px;
  }
  
  .kvs-room-tag {
    font-size: 12px;
    color: #bfa4ff;
  }
  
  .kvs-hud-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  
  .kvs-hints {
    display: flex;
    flex-direction: column;
    font-size: 11px;
    color: #c6b2ff;
    opacity: 0.85;
  }
  
  .kvs-hints span + span {
    margin-top: 2px;
  }
  
  .kvs-cart-btn {
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 215, 128, 0.7);
    font-size: 12px;
    text-decoration: none;
    color: #fff6d8;
    background: radial-gradient(circle at top left, #f5af19, #b85cff);
    box-shadow: 0 8px 22px rgba(167, 116, 255, 0.6);
    cursor: pointer;
    white-space: nowrap;
  }
  
  /* Scene */
  .kvs-scene-wrap {
    position: relative;
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 12px;
    aspect-ratio: 16 / 9;
    background: #0a0414;
  }
  
  .kvs-scene-bg {
    position: absolute;
    inset: 0;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }
  
  /* Slide transitions */
  .kvs-slide-left {
    transform: translateX(-12%);
    opacity: 0;
  }
  .kvs-slide-right {
    transform: translateX(12%);
    opacity: 0;
  }
  
  /* Avatar */
  .kvs-avatar {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
  }
  
  .kvs-avatar-shadow {
    width: 60px;
    height: 12px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.6), transparent);
    opacity: 0.8;
  }
  
  .kvs-avatar-body {
    margin-top: -4px;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .kvs-avatar-head {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 20%, #ffe7c9, #d89c7a);
    border: 2px solid rgba(255, 255, 255, 0.4);
  }
  
  .kvs-avatar-core {
    width: 34px;
    height: 50px;
    margin-top: -4px;
    border-radius: 16px 16px 8px 8px;
    background: linear-gradient(180deg, #ffe4ff, #c48fff);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
  }
  
  /* Navigation buttons */
  .kvs-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 1px solid rgba(230, 198, 255, 0.7);
    background: rgba(12, 3, 28, 0.75);
    color: #f5e5ff;
    cursor: pointer;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
  }
  
  .kvs-nav-left {
    left: 10px;
  }
  
  .kvs-nav-right {
    right: 10px;
  }
  
  .kvs-nav-btn:hover {
    transform: translateY(-50%) scale(1.05);
  }
  
  /* Bottom panel */
  .kvs-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr);
    gap: 16px;
    margin-top: 8px;
  }
  
  .kvs-room-description {
    font-size: 13px;
    color: #d7c9ff;
    margin-bottom: 8px;
  }
  
  .kvs-status {
    font-size: 11px;
    color: #f4e6ff;
    opacity: 0.9;
  }
  
  /* Products */
  .kvs-products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
  }
  
  .kvs-empty {
    font-size: 12px;
    color: #c4b3ff;
    opacity: 0.9;
  }
  
  /* Product card */
  .kvs-product-card {
    position: relative;
    padding: 10px 10px 50px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(34, 15, 58, 0.9), rgba(72, 28, 104, 0.95));
    border: 1px solid rgba(229, 183, 255, 0.65);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .kvs-product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.6);
  }
  
  .kvs-product-header {
    margin-bottom: 6px;
  }
  
  .kvs-product-name {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #fff6fb;
  }
  
  .kvs-product-line {
    font-size: 11px;
    margin-top: 3px;
    color: #e8d5ff;
  }
  
  .kvs-product-meta {
    font-size: 11px;
    color: #f7e9c1;
    margin-top: 4px;
  }
  
  .kvs-product-actions {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 10px;
    display: flex;
  }
  
  /* Buttons */
  .kvs-view-btn {
    width: 100%;
    padding: 2px 5px;
    border-radius: 999px;
    border: none;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    white-space: nowrap;
    background: linear-gradient(90deg, #f5af19, #f538ff);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.7);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }
  
  .kvs-view-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(245, 56, 255, 0.5);
  }
  
  /* Toast */
  .kvs-toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%) translateY(40px);
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(11, 4, 24, 0.96);
    color: #f0e0ff;
    font-size: 12px;
    border: 1px solid rgba(228, 192, 255, 0.8);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.7);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 9999;
  }
  
  .kvs-toast-show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .kvs-container {
      margin: 16px auto;
      padding: 12px;
    }
  
    .kvs-hud {
      flex-direction: column;
      align-items: flex-start;
    }
  
    .kvs-panel {
      grid-template-columns: 1fr;
    }
  
    .kvs-scene-wrap {
      aspect-ratio: 9 / 16;
    }
  }