.wp-block-ibf-paver-pattern-visualizer {
      --gold: #eeb310;
      --gold-dark: #d4a00e;
      --gold-light: rgba(238, 179, 16, 0.12);
      --text: #000000;
      --muted: #717073;
      --bg: #f5f5f5;
      --white: #ffffff;
      --border: #e0e0e0;
      --input-bg: #ffffff;
      --radius: 8px;
      --radius-lg: 12px;
      --pill: 9999px;
      --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
      --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
      --shadow-lg: 0 4px 16px rgba(0,0,0,0.10);
      --max-width: 1400px;
      --border-hover: #bbbbbb;
      --placeholder-bg: #eeeeee;
    }

    .wp-block-ibf-paver-pattern-visualizer, .wp-block-ibf-paver-pattern-visualizer * { box-sizing: border-box; margin: 0; padding: 0; }

    .wp-block-ibf-paver-pattern-visualizer {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.5;
      border-top: 1px solid var(--border);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .container {
      margin: 0 auto;
      padding: 0 24px;
    }

    .wp-block-ibf-paver-pattern-visualizer .site-header .container {
      max-width: var(--max-width);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .site-header {
      background: var(--white);
      border-bottom: 1px solid var(--border);
      padding: 16px 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .header-inner {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .wp-block-ibf-paver-pattern-visualizer .header-logo {
      height: 40px;
      width: auto;
    }

    .wp-block-ibf-paver-pattern-visualizer .header-divider {
      width: 1px;
      height: 28px;
      background: var(--border);
    }

    .wp-block-ibf-paver-pattern-visualizer .header-title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .unit-toggle {
      display: flex;
      align-items: center;
      gap: 0;
      background: var(--bg);
      border-radius: var(--pill);
      padding: 3px;
      border: 1px solid var(--border);
      width: fit-content;
    }

    .wp-block-ibf-paver-pattern-visualizer .unit-toggle-btn {
      padding: 4px 14px;
      border: none;
      border-radius: var(--pill);
      background: transparent;
      font-size: 12px;
      font-weight: 600;
      color: var(--muted);
      cursor: pointer;
      transition: background 0.15s, color 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .unit-toggle-btn.active {
      background: var(--white);
      color: var(--text);
      box-shadow: var(--shadow-sm);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .paver-dim-pair {
      gap: 8px;
    }
    .wp-block-ibf-paver-pattern-visualizer .paver-dim-select {
      flex: 1 1 0;
      min-width: 0;
    }
    .wp-block-ibf-paver-pattern-visualizer .paver-dim-x {
      color: var(--muted);
      font-weight: 500;
      flex: 0 0 auto;
    }
    .wp-block-ibf-paver-pattern-visualizer .paver-dim-unit {
      color: var(--muted);
      font-size: 13px;
      flex: 0 0 auto;
      min-width: 22px;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .paver-pattern-visualizer-main {
      padding: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .page-title {
      font-size: 48px;
      font-weight: 700;
      margin-bottom: 8px;
      line-height: 1.1;
    }

    .wp-block-ibf-paver-pattern-visualizer .page-subtitle {
      font-size: 18px;
      color: var(--muted);
      margin-bottom: 40px;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .app-layout {
      position: relative;
      width: 100%;
    }

    .wp-block-ibf-paver-pattern-visualizer .main-content {
      width: 100%;
      max-width: 1400px;
      margin: 0 auto;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .page-body {
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    .wp-block-ibf-paver-pattern-visualizer .page-title-area {
      display: none;
      padding: 24px 24px 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .desktop-only {
      display: block;
    }

    .wp-block-ibf-paver-pattern-visualizer .page-content-row {
      display: flex;
      flex: 1;
    }

    .wp-block-ibf-paver-pattern-visualizer .page-center {
      flex: 1;
      min-width: 0;
      overflow: hidden;
      padding-top: 32px;
      padding-bottom: 64px;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer {
      flex-shrink: 0;
      width: 0;
      min-width: 0;
      height: 100vh;
      position: sticky;
      top: 0;
      background: var(--white);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
      transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                  min-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                  padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      padding: 0;
      z-index: 2;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer.open {
      width: 370px;
      min-width: 370px;
      padding: 24px;
      overflow-y: auto;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: -24px -24px 24px;
      padding: 16px 24px;
      border-bottom: 1px solid var(--border);
      background: var(--white);
      position: sticky;
      top: 0;
      z-index: 1;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-header .section-title {
      margin-bottom: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer--left .drawer-header {
      position: static;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-close {
      width: 32px;
      height: 32px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--white);
      cursor: pointer;
      font-size: 18px;
      color: var(--muted);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.15s;
      flex-shrink: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-close:hover {
      background: var(--bg);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .drawer-tab {
      position: fixed;
      top: 0;
      bottom: 0;
      z-index: 3;
      width: 36px;
      border: none;
      background: var(--white);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 600;
      color: var(--muted);
      box-shadow: var(--shadow-md);
      writing-mode: vertical-rl;
      transition: opacity 0.2s, color 0.15s, background 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-tab:hover {
      color: var(--gold-dark);
      background: var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-tab--left {
      left: 0;
      border-right: 1px solid var(--border);
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-tab--right {
      right: 0;
      border-left: 1px solid var(--border);
      text-orientation: mixed;
    }

    .wp-block-ibf-paver-pattern-visualizer .drawer-tab.hidden {
      opacity: 0;
      pointer-events: none;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .drawer .section {
      box-shadow: none;
      border-radius: 0;
      padding: 0;
      margin-bottom: 16px;
      background: transparent;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .settings-compact {
      display: flex;
      flex-direction: column;
      gap: 14px;
      padding-top: 8px;
    }

    .wp-block-ibf-paver-pattern-visualizer .settings-compact-title {
      display: none;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-row {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      overflow: hidden;
      min-width: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--muted);
      min-width: 90px;
      flex-shrink: 0;
      padding-top: 5px;
      line-height: 1.3;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-label small {
      font-weight: 400;
      font-size: 10px;
      opacity: 0.7;
      display: block;
    }

    .wp-block-ibf-paver-pattern-visualizer .pair-label {
      font-size: 11px;
      color: var(--muted);
      font-weight: 500;
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-mini {
      width: 24px;
      height: 24px;
      border: 1px solid var(--border);
      border-radius: 4px;
      background: var(--white);
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0;
      line-height: 1;
      transition: background 0.15s, color 0.15s, border-color 0.15s;
      flex-shrink: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-mini:hover {
      background: var(--gold-light);
      color: var(--gold-dark);
      border-color: var(--gold);
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-mini:active {
      background: var(--gold);
      color: var(--white);
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact {
      display: flex;
      align-items: stretch;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      background: var(--input-bg);
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact .compact-input {
      border: none;
      border-radius: 0;
      width: 36px;
      padding: 4px 2px;
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact .compact-input:focus {
      box-shadow: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact-btns {
      display: flex;
      flex-direction: column;
      border-left: 1px solid var(--border);
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact .stepper-mini {
      border: none;
      border-radius: 0;
      width: 20px;
      height: 14px;
      font-size: 10px;
    }

    .wp-block-ibf-paver-pattern-visualizer .stepper-compact .stepper-mini + .stepper-mini {
      border-top: 1px solid var(--border);
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control {
      flex: 1;
      padding: 6px 10px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: 13px;
      background: var(--input-bg);
      color: var(--text);
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer #presetSelect,
    .wp-block-ibf-paver-pattern-visualizer #patternType {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;
      padding-right: 30px;
      background-color: var(--input-bg);
      background-image: url("/wp-content/uploads/2023/01/icon-chevron-down.svg");
      background-repeat: no-repeat;
      background-position: right 14px center;
      background-size: 22px 18px;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control--pair {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1;
      min-width: 0;
      flex-wrap: wrap;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control--pair span {
      color: var(--muted);
      font-size: 13px;
    }

    .wp-block-ibf-paver-pattern-visualizer .compact-input {
      width: 50px;
      flex-shrink: 1;
      padding: 6px 8px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: 13px;
      text-align: center;
      background: var(--input-bg);
      color: var(--text);
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
      -moz-appearance: textfield;
    }

    .wp-block-ibf-paver-pattern-visualizer .compact-input::-webkit-outer-spin-button,
.wp-block-ibf-paver-pattern-visualizer .compact-input::-webkit-inner-spin-button {
      -webkit-appearance: none;
      margin: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .compact-input:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control--slider {
      flex: 1;
      min-width: 0;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .wp-block-ibf-paver-pattern-visualizer .setting-control--color {
      width: 36px;
      height: 36px;
      padding: 2px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      cursor: pointer;
      background: var(--input-bg);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .section {
      background: var(--white);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      padding: 32px;
      margin-bottom: 24px;
    }

    .wp-block-ibf-paver-pattern-visualizer .section-title {
      font-size: 24px;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .wp-block-ibf-paver-pattern-visualizer .section-desc {
      font-size: 14px;
      color: var(--muted);
      margin-bottom: 20px;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .custom-upload-area {
      margin-bottom: 12px;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-btn {
      display: block;
      width: 100%;
      padding: 10px;
      border: 1.5px dashed var(--border);
      border-radius: var(--radius);
      background: var(--bg);
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
      text-align: center;
      cursor: pointer;
      transition: border-color 0.15s, color 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-btn:hover {
      border-color: var(--gold);
      color: var(--gold-dark);
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-list {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-top: 8px;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-item {
      position: relative;
      width: 40px;
      height: 40px;
      border-radius: var(--radius);
      overflow: hidden;
      border: 2px solid var(--border);
      cursor: pointer;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-item.selected {
      border-color: var(--gold);
      box-shadow: 0 0 0 2px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-remove {
      position: absolute;
      top: -4px;
      right: -4px;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--text);
      color: var(--white);
      font-size: 10px;
      line-height: 16px;
      text-align: center;
      cursor: pointer;
      border: none;
      padding: 0;
      display: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .custom-upload-item:hover .custom-upload-remove {
      display: block;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .search-bar {
      width: 100%;
      padding: 10px 14px;
      border: 1px solid var(--border);
      border-radius: var(--pill);
      font-size: 14px;
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
      margin-bottom: 16px;
    }

    .wp-block-ibf-paver-pattern-visualizer .search-bar:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px var(--gold-light);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .category-header {
      font-size: 11px;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--muted);
      padding: 12px 0 6px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 4px;
    }

    .wp-block-ibf-paver-pattern-visualizer .category-header:first-child {
      padding-top: 0;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .stone-accordion {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      margin-bottom: 6px;
      overflow: hidden;
      background: var(--white);
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-header {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 8px 10px;
      width: 100%;
      border: none;
      background: none;
      cursor: pointer;
      font-size: 13px;
      text-align: left;
      transition: background 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-header:hover {
      background: var(--bg);
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-thumb {
      width: 36px;
      height: 36px;
      border-radius: var(--radius);
      object-fit: cover;
      background: var(--placeholder-bg);
      flex-shrink: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-name {
      flex: 1;
      font-weight: 600;
      color: #000000;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-badge {
      font-size: 10px;
      font-weight: 600;
      color: var(--gold-dark);
      background: var(--gold-light);
      padding: 2px 7px;
      border-radius: var(--pill);
      white-space: nowrap;
      display: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-badge.visible {
      display: inline-block;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-arrow {
      font-size: 13px;
      color: var(--muted);
      transition: transform 0.2s;
      flex-shrink: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion.expanded .stone-accordion-arrow {
      transform: rotate(180deg);
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion-body {
      display: none;
      padding: 0 10px 10px;
    }

    .wp-block-ibf-paver-pattern-visualizer .stone-accordion.expanded .stone-accordion-body {
      display: block;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .finish-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
    }

    .wp-block-ibf-paver-pattern-visualizer .finish-chip {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px 4px 4px;
      border: 2px solid var(--border);
      border-radius: var(--pill);
      cursor: pointer;
      transition: border-color 0.15s, background 0.15s;
      background: var(--white);
      font-size: 12px;
      font-weight: 500;
      user-select: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .finish-chip:hover { border-color: var(--border-hover); }

    .wp-block-ibf-paver-pattern-visualizer .finish-chip.selected {
      border-color: var(--gold);
      background: var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .finish-chip-thumb {
      width: 26px;
      height: 26px;
      border-radius: 50%;
      object-fit: cover;
      background: var(--placeholder-bg);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .mix-section {
      display: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-section.visible { display: block; }

    .wp-block-ibf-paver-pattern-visualizer .mix-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 16px;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-controls {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-controls label {
      font-size: 13px;
      color: var(--muted);
      display: flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-total {
      font-size: 13px;
      color: var(--muted);
      font-weight: 600;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-card {
      display: flex;
      align-items: center;
      gap: 10px;
      background: var(--bg);
      border-radius: var(--radius);
      padding: 10px 14px;
      flex: 1 1 280px;
      min-width: 260px;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-thumb {
      width: 40px;
      height: 40px;
      border-radius: var(--radius);
      object-fit: cover;
      background: var(--placeholder-bg);
      flex-shrink: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-info {
      flex: 1;
      min-width: 0;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-label {
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-bottom: 4px;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-slider-row {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-slider {
      flex: 1;
      -webkit-appearance: none;
      appearance: none;
      height: 4px;
      border-radius: var(--pill);
      background: var(--border);
      outline: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--gold);
      cursor: pointer;
      box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-slider::-moz-range-thumb {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--gold);
      cursor: pointer;
      border: none;
      box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .mix-value {
      font-size: 13px;
      color: var(--muted);
      min-width: 3em;
      text-align: right;
      font-weight: 600;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .controls-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px 16px;
    }

    .wp-block-ibf-paver-pattern-visualizer .control-group {
      display: flex;
      flex-direction: column;
    }

    .wp-block-ibf-paver-pattern-visualizer .control-group label {
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 2px;
    }

    .wp-block-ibf-paver-pattern-visualizer .control-group label small {
      font-weight: 400;
      color: var(--muted);
    }

    .wp-block-ibf-paver-pattern-visualizer .control-group input[type="number"],
.wp-block-ibf-paver-pattern-visualizer .control-group input[type="color"],
.wp-block-ibf-paver-pattern-visualizer .control-group select {
      padding: 8px 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      font-size: 14px;
      background: var(--input-bg);
      color: var(--text);
      outline: none;
      transition: border-color 0.15s, box-shadow 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .control-group input:focus,
.wp-block-ibf-paver-pattern-visualizer .control-group select:focus {
      border-color: var(--gold);
      box-shadow: 0 0 0 3px var(--gold-light);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .slider-combo {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .wp-block-ibf-paver-pattern-visualizer .combo-slider {
      flex: 1;
      -webkit-appearance: none;
      appearance: none;
      height: 4px;
      border-radius: var(--pill);
      background: var(--border);
      outline: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .combo-slider::-webkit-slider-thumb {
      -webkit-appearance: none;
      appearance: none;
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--gold);
      cursor: pointer;
      box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .combo-slider::-moz-range-thumb {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--gold);
      cursor: pointer;
      border: none;
      box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--gold-light);
    }

    .wp-block-ibf-paver-pattern-visualizer .mobile-stones-btn {
      display: none;
      width: 100%;
      padding: 12px;
      margin-bottom: 16px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--white);
      font-size: 14px;
      font-weight: 600;
      color: var(--gold-dark);
      cursor: pointer;
      transition: background 0.15s, border-color 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .mobile-stones-btn:hover {
      background: var(--gold-light);
      border-color: var(--gold);
    }

    .wp-block-ibf-paver-pattern-visualizer .output-readout {
      font-size: 12px;
      color: var(--muted);
      margin-top: 12px;
      padding: 8px 12px;
      background: var(--bg);
      border-radius: var(--radius);
      overflow-wrap: break-word;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .btn-row {
      display: flex;
      gap: 12px;
      margin-top: 24px;
      flex-wrap: wrap;
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-primary {
      border: none;
      border-radius: var(--pill);
      padding: 12px 28px;
      font-size: 15px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.04em;
      background: var(--gold);
      color: var(--white);
      cursor: pointer;
      box-shadow: var(--shadow-md);
      transition: background 0.15s, transform 0.1s;
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-primary:hover {
      background: var(--gold-dark);
      transform: translateY(-1px);
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-primary:active { transform: translateY(0); }

    .wp-block-ibf-paver-pattern-visualizer .btn-primary:disabled {
      opacity: 0.5;
      cursor: not-allowed;
      transform: none;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .btn-primary[data-dirty="true"] {
      animation: btnPulse 1.6s ease-in-out infinite;
    }
    @keyframes btnPulse{
      0%, 100% { box-shadow: 0 0 0 0 rgba(238, 179, 16, 0.0); }
      50%      { box-shadow: 0 0 0 6px rgba(238, 179, 16, 0.25); }
    }
    .wp-block-ibf-paver-pattern-visualizer .btn-secondary[disabled] {
      opacity: 0.5;
      cursor: not-allowed;
      pointer-events: none;
    }

    .wp-block-ibf-paver-pattern-visualizer .aspect-lock-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      color: var(--muted);
      cursor: pointer;
      user-select: none;
    }
    .wp-block-ibf-paver-pattern-visualizer .aspect-lock-label input { accent-color: var(--gold); }

    .wp-block-ibf-paver-pattern-visualizer .grid-clamp-note {
      font-size: 11px;
      color: var(--muted);
      font-style: italic;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .grid-pair-stack {
      flex-direction: column;
      align-items: flex-start;
      gap: 6px;
      flex-wrap: nowrap;
    }
    .wp-block-ibf-paver-pattern-visualizer .grid-pair-line {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .wp-block-ibf-paver-pattern-visualizer .grid-pair-line .pair-label { min-width: 32px; }

    .wp-block-ibf-paver-pattern-visualizer .btn-secondary {
      border: 1px solid var(--border);
      border-radius: var(--pill);
      padding: 12px 24px;
      font-size: 15px;
      font-weight: 500;
      background: var(--white);
      color: var(--text);
      cursor: pointer;
      transition: border-color 0.15s, background 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-secondary:hover {
      border-color: var(--border-hover);
      background: var(--bg);
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-small {
      border: 1px solid var(--border);
      border-radius: var(--pill);
      padding: 4px 12px;
      font-size: 12px;
      cursor: pointer;
      background: var(--white);
      color: var(--text);
      transition: border-color 0.15s, background 0.15s;
    }

    .wp-block-ibf-paver-pattern-visualizer .btn-small:hover {
      border-color: var(--gold);
      background: var(--gold-light);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .canvas-section {
      position: relative;
    }

    .wp-block-ibf-paver-pattern-visualizer .canvas-label {
      display: block;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--muted);
      font-weight: 600;
      margin-bottom: 8px;
    }

    .wp-block-ibf-paver-pattern-visualizer #canvas {
      display: block;
      margin: 0 auto;
      border-radius: var(--radius);
      background: var(--bg);
      border: 1px solid var(--border);
      width: 100%;
      height: auto;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .loading-overlay {
      display: none;
      position: absolute;
      inset: 0;
      background: rgba(255,255,255,0.85);
      border-radius: var(--radius-lg);
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 12px;
      z-index: 10;
    }

    .wp-block-ibf-paver-pattern-visualizer .loading-overlay.visible {
      display: flex;
    }

    .wp-block-ibf-paver-pattern-visualizer .spinner {
      width: 32px;
      height: 32px;
      border: 3px solid var(--border);
      border-top-color: var(--gold);
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
    }

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

    .wp-block-ibf-paver-pattern-visualizer .loading-text {
      font-size: 14px;
      color: var(--muted);
      font-weight: 500;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .progress-bar-wrap {
      display: none;
      margin-top: 12px;
      background: var(--border);
      border-radius: var(--pill);
      height: 6px;
      overflow: hidden;
    }

    .wp-block-ibf-paver-pattern-visualizer .progress-bar-wrap.visible { display: block; }

    .wp-block-ibf-paver-pattern-visualizer .progress-bar-fill {
      height: 100%;
      background: var(--gold);
      border-radius: var(--pill);
      width: 0%;
      transition: width 0.2s;
    }

    
    .wp-block-ibf-paver-pattern-visualizer .calc-inputs {
      display: flex;
      gap: 16px;
      margin-bottom: 20px;
      flex-wrap: wrap;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-inputs .control-group {
      flex: 1 1 180px;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 14px;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-table th {
      text-align: left;
      font-weight: 600;
      padding: 10px 12px;
      background: var(--bg);
      border-bottom: 2px solid var(--border);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--muted);
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-table td {
      padding: 10px 12px;
      border-bottom: 1px solid var(--border);
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-table th:nth-child(3),
.wp-block-ibf-paver-pattern-visualizer .calc-table th:nth-child(4),
.wp-block-ibf-paver-pattern-visualizer .calc-table td:nth-child(3),
.wp-block-ibf-paver-pattern-visualizer .calc-table td:nth-child(4) {
      text-align: center;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-table tr:last-child td {
      border-bottom: none;
      font-weight: 600;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-link {
      display: inline-block;
      margin-top: 16px;
      font-size: 14px;
      color: var(--gold-dark);
      text-decoration: none;
      font-weight: 600;
    }

    .wp-block-ibf-paver-pattern-visualizer .calc-link:hover { text-decoration: underline; }

    
    .wp-block-ibf-paver-pattern-visualizer .site-footer {
      text-align: center;
      padding: 24px;
      font-size: 13px;
      color: var(--muted);
    }

    
    .wp-block-ibf-paver-pattern-visualizer .empty-state {
      text-align: center;
      padding: 40px 20px;
      color: var(--muted);
      font-size: 14px;
    }


    
    @media (min-width: 1201px){
      .wp-block-ibf-paver-pattern-visualizer.left-drawer-closed .site-header .container {
        padding-left: 60px;
      }
      .wp-block-ibf-paver-pattern-visualizer.left-drawer-closed .page-content-row {
        margin-left: 36px;
      }
      .wp-block-ibf-paver-pattern-visualizer.right-drawer-closed .site-header .container {
        padding-right: 60px;
      }
      .wp-block-ibf-paver-pattern-visualizer.right-drawer-closed .page-content-row {
        margin-right: 36px;
      }
    }

    
    @media (max-width: 1200px){
      
      .wp-block-ibf-paver-pattern-visualizer .drawer--left {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        width: 0;
        min-width: 0;
        height: auto;
        z-index: 3;
      }
      .wp-block-ibf-paver-pattern-visualizer .drawer--left.open {
        width: 100%;
        min-width: 100%;
        padding: 24px;
      }

      
      .wp-block-ibf-paver-pattern-visualizer .drawer-tab--left { display: none; }
      .wp-block-ibf-paver-pattern-visualizer .page-title-area { display: block; }
      .wp-block-ibf-paver-pattern-visualizer .desktop-only { display: none; }
      .wp-block-ibf-paver-pattern-visualizer .mobile-stones-btn { display: block; }

      
      .wp-block-ibf-paver-pattern-visualizer .drawer-backdrop-mobile {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.3);
        z-index: 2;
      }
      .wp-block-ibf-paver-pattern-visualizer .drawer-backdrop-mobile.visible { display: block; }
    }

    @media (max-width: 1000px){
      .wp-block-ibf-paver-pattern-visualizer .page-content-row { flex-direction: column; }

      
      .wp-block-ibf-paver-pattern-visualizer .drawer--right {
        position: static;
        height: auto;
        width: 100% !important;
        min-width: 100% !important;
        overflow: visible !important;
        padding: 0 24px !important;
        order: -1;
        box-shadow: none !important;
        transition: none !important;
        background: transparent !important;
      }
      .wp-block-ibf-paver-pattern-visualizer .drawer--right .drawer-header { display: none; }
      .wp-block-ibf-paver-pattern-visualizer .drawer--right .settings-compact {
        background: var(--white);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-md);
        padding: 20px;
        margin-bottom: 0;
      }

      
      .wp-block-ibf-paver-pattern-visualizer .drawer-tab--right { display: none; }

      .wp-block-ibf-paver-pattern-visualizer .page-title { font-size: 32px; }
      .wp-block-ibf-paver-pattern-visualizer .page-subtitle { font-size: 15px; }
      .wp-block-ibf-paver-pattern-visualizer .page-title-area { display: block; }
      .wp-block-ibf-paver-pattern-visualizer .desktop-only { display: none; }
      .wp-block-ibf-paver-pattern-visualizer .page-center { padding-top: 0; padding-bottom: 32px; }
      .wp-block-ibf-paver-pattern-visualizer .page-center .btn-row { margin-top: 24px !important; }
      .wp-block-ibf-paver-pattern-visualizer .settings-compact-title { display: block; margin-top: 4px; }
      .wp-block-ibf-paver-pattern-visualizer .setting-label { min-width: 70px; font-size: 12px; }
      .wp-block-ibf-paver-pattern-visualizer .mobile-stones-btn { display: block; }

      .wp-block-ibf-paver-pattern-visualizer .section { padding: 20px; }
      .wp-block-ibf-paver-pattern-visualizer .mix-card { flex: 1 1 100%; min-width: 0; }
    }

    @media (max-width: 480px){
      .wp-block-ibf-paver-pattern-visualizer .page-title { font-size: 28px; }
      .wp-block-ibf-paver-pattern-visualizer .page-subtitle { font-size: 14px; }
      .wp-block-ibf-paver-pattern-visualizer .container { padding: 0 16px; }
      .wp-block-ibf-paver-pattern-visualizer .setting-label { min-width: 65px; }
      .wp-block-ibf-paver-pattern-visualizer .compact-input { width: 50px; }

      .wp-block-ibf-paver-pattern-visualizer .section { padding: 16px; }
      .wp-block-ibf-paver-pattern-visualizer .header-title { font-size: 15px; }
    }

body.visualizer-download-modal-open {
  overflow: hidden;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-open {
  display: flex;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__dialog {
  position: relative;
  width: min(680px, 100%);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  color: var(--text);
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__close:hover {
  background: var(--bg);
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__title {
  margin: 0 48px 24px 0;
  color: var(--text);
  font-size: 28px;
  line-height: 1.2;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-sizes {
  margin: 0 0 24px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-sizes legend {
  padding: 0 6px;
  color: var(--text);
  font-weight: 700;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-sizes label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
  color: var(--text);
  cursor: pointer;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-sizes input {
  width: auto;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-sizes__note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__content {
  margin-bottom: 20px;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-skip {
  display: inline-block;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--gold-dark);
  font: inherit;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-skip:hover {
  box-shadow: none;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-watermark-note {
  max-width: 440px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-download-form-completed .visualizer-download-modal__content,
.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-download-form-completed .visualizer-download-skip,
.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-download-form-completed .visualizer-download-watermark-note {
  display: none;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-skip:disabled {
  opacity: 0.6;
  cursor: wait;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-editor-preview {
  display: block;
  position: relative;
  inset: auto;
  z-index: auto;
  padding: 24px 0;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-editor-preview .visualizer-download-modal__backdrop,
.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-editor-preview .visualizer-download-modal__close {
  display: none;
}

.wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal.is-editor-preview .visualizer-download-modal__dialog {
  max-height: none;
  margin: 0 auto;
  border: 1px dashed var(--border-hover);
  box-shadow: none;
}

@media (max-width: 600px) {
  .wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal {
    padding: 12px;
  }

  .wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__dialog {
    max-height: calc(100vh - 24px);
    padding: 24px 20px;
  }

  .wp-block-ibf-paver-pattern-visualizer .visualizer-download-modal__title {
    font-size: 24px;
  }
}