/* ============================================================
   CONFIGURATOR.CSS
   Product Configurator for Outdoor Cushions & Umbrellas
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   ------------------------------------------------------------ */
:root {
    --cfg-green: #86b19a;
    --cfg-green-dark: #6f9a83;
    --cfg-green-light: #e8f3ed;
    --cfg-green-glow: rgba(134, 177, 154, 0.35);
    --cfg-orange: #eba77a;
    --cfg-orange-dark: #d9915f;
    --cfg-orange-light: #fdf0e5;
    --cfg-text-dark: #333;
    --cfg-text-mid: #555;
    --cfg-text-light: #888;
    --cfg-bg-white: #fff;
    --cfg-bg-off: #f8f8f8;
    --cfg-border: #e8e8e8;
    --cfg-border-light: #f0f0f0;
    --cfg-shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
    --cfg-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --cfg-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
    --cfg-shadow-lift: 0 8px 24px rgba(0, 0, 0, 0.12);
    --cfg-font-serif: 'Cooper', Georgia, 'Times New Roman', serif;
    --cfg-font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --cfg-gap: 24px;
    --cfg-radius-sm: 8px;
    --cfg-radius-md: 12px;
    --cfg-radius-lg: 16px;
    --cfg-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --cfg-duration: 300ms;
}

/* ------------------------------------------------------------
   2. Progress Bar (#cfg-progress)
   ------------------------------------------------------------ */
#cfg-progress {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    max-width: 540px;
    margin: 0 auto 40px;
    padding: 0;
    list-style: none;
    grid-column: 1 / -1;
}
#cfg-progress::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--cfg-border);
    border-radius: 2px;
    z-index: 0;
}
#cfg-progress::after {
    content: '';
    position: absolute;
    top: 16px;
    left: 0;
    height: 3px;
    background: var(--cfg-green);
    border-radius: 2px;
    z-index: 1;
    transition: width var(--cfg-duration) var(--cfg-ease);
    width: var(--cfg-progress-width, 0%);
}
.cfg-progress-step {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    flex: 1;
    padding: 0 4px;
    background: none;
    border: none;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}
.cfg-progress-step:focus-visible .cfg-progress-dot {
    box-shadow: 0 0 0 3px var(--cfg-green-glow);
}
.cfg-progress-dot {
    width: 33px;
    height: 33px;
    border-radius: 50%;
    border: 3px solid var(--cfg-border);
    background: var(--cfg-bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--cfg-duration) var(--cfg-ease);
    font-family: var(--cfg-font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--cfg-text-light);
    flex-shrink: 0;
}
.cfg-progress-label {
    margin-top: 10px;
    font-family: var(--cfg-font-sans);
    font-size: 12px;
    font-weight: 500;
    color: var(--cfg-text-light);
    text-align: center;
    letter-spacing: 0.02em;
    transition: color var(--cfg-duration) var(--cfg-ease);
    white-space: nowrap;
}
.cfg-progress-step.active .cfg-progress-dot {
    border-color: var(--cfg-green);
    background: var(--cfg-green);
    color: var(--cfg-bg-white);
    box-shadow: 0 0 0 5px var(--cfg-green-glow);
}
.cfg-progress-step.active .cfg-progress-label {
    color: var(--cfg-green-dark);
    font-weight: 600;
}
.cfg-progress-step.completed .cfg-progress-dot {
    border-color: var(--cfg-green);
    background: var(--cfg-green);
    color: var(--cfg-bg-white);
}
.cfg-progress-step.completed .cfg-progress-dot::after {
    content: '\2713';
    font-size: 15px;
    font-weight: 700;
    line-height: 1;
}
.cfg-progress-step.completed .cfg-progress-dot > span { display: none; }
.cfg-progress-step.completed .cfg-progress-label { color: var(--cfg-green); }
.cfg-progress-step.completed:hover .cfg-progress-dot,
.cfg-progress-step.clickable:hover .cfg-progress-dot {
    transform: scale(1.1);
    box-shadow: 0 0 0 5px var(--cfg-green-glow);
}
#cfg-progress.cfg-progress--umbrella { max-width: 420px; }

/* ------------------------------------------------------------
   3. Two-Column Layout (#configurator)
   ------------------------------------------------------------ */
#configurator {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 36px;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--cfg-gap);
}
.cfg-main { min-width: 0; position: relative; overflow: hidden; }

/* ------------------------------------------------------------
   4. Step Panels (.cfg-step-panel)
   ------------------------------------------------------------ */
.cfg-step-panel {
    display: none;
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--cfg-duration) var(--cfg-ease), transform var(--cfg-duration) var(--cfg-ease);
}
.cfg-step-panel.active {
    display: block;
    opacity: 1;
    transform: translateX(0);
    animation: cfgSlideIn var(--cfg-duration) var(--cfg-ease) forwards;
}
.cfg-step-panel.exit-left {
    display: block;
    animation: cfgSlideOutLeft var(--cfg-duration) var(--cfg-ease) forwards;
    pointer-events: none;
}
@keyframes cfgSlideIn {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes cfgSlideOutLeft {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(-30px); }
}

/* ------------------------------------------------------------
   5. Step Headings
   ------------------------------------------------------------ */
.cfg-step-title {
    font-family: var(--cfg-font-serif);
    font-size: 28px;
    font-weight: normal;
    color: var(--cfg-text-dark);
    margin: 0 0 8px;
    line-height: 1.3;
}
.cfg-step-desc {
    font-family: var(--cfg-font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--cfg-text-light);
    margin: 0 0 28px;
}
.cfg-section-label {
    font-family: var(--cfg-font-sans);
    font-size: 13px;
    font-weight: 700;
    color: var(--cfg-text-mid);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 12px;
}
.cfg-section-divider {
    margin: 28px 0;
    border: none;
    border-top: 1px solid var(--cfg-border-light);
}

/* ------------------------------------------------------------
   6. Style Selection Cards (.cfg-style-card)
   ------------------------------------------------------------ */
.cfg-style-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cfg-style-card {
    position: relative;
    background: var(--cfg-bg-white);
    border: 2px solid var(--cfg-border);
    border-radius: var(--cfg-radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--cfg-duration) var(--cfg-ease);
    box-shadow: var(--cfg-shadow-sm);
    outline: none;
    -webkit-tap-highlight-color: transparent;
}
.cfg-style-card:hover {
    border-color: var(--cfg-green);
    box-shadow: var(--cfg-shadow-lift);
    transform: translateY(-3px);
}
.cfg-style-card:focus-visible { border-color: var(--cfg-green); box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-style-card.selected {
    border-color: var(--cfg-green);
    background: var(--cfg-green-light);
    box-shadow: 0 0 0 3px var(--cfg-green-glow);
}
.cfg-style-card.selected::after {
    content: '\2713';
    position: absolute;
    top: 10px;
    right: 10px;
    width: 26px;
    height: 26px;
    background: var(--cfg-green);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    z-index: 2;
}
.cfg-style-card-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    display: block;
    background: var(--cfg-bg-white);
    padding: 12px;
    box-sizing: border-box;
}
.cfg-style-card-label {
    padding: 12px 10px;
    font-family: var(--cfg-font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--cfg-text-dark);
    text-align: center;
    line-height: 1.3;
    border-top: 1px solid var(--cfg-border-light);
    background: var(--cfg-bg-off);
}

/* ------------------------------------------------------------
   7. Fabric Search (.cfg-fabric-search)
   ------------------------------------------------------------ */
.cfg-fabric-search-wrap { position: relative; max-width: 400px; width: 100%; margin-bottom: 24px; }
.cfg-fabric-search-wrap::before {
    content: '';
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23888' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;
    z-index: 1;
}
.cfg-fabric-search {
    width: 100%;
    padding: 12px 16px 12px 44px;
    font-family: var(--cfg-font-sans);
    font-size: 15px;
    color: var(--cfg-text-dark);
    background: var(--cfg-bg-white);
    border: 2px solid var(--cfg-border);
    border-radius: 50px;
    outline: none;
    transition: border-color var(--cfg-duration) var(--cfg-ease), box-shadow var(--cfg-duration) var(--cfg-ease);
    box-sizing: border-box;
}
.cfg-fabric-search::placeholder { color: var(--cfg-text-light); }
.cfg-fabric-search:focus { border-color: var(--cfg-green); box-shadow: 0 0 0 3px var(--cfg-green-glow); }

/* ------------------------------------------------------------
   8. Fabric Grid (.cfg-fabric-grid) — 6 columns, paginated
   ------------------------------------------------------------ */
.cfg-fabric-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.cfg-fabric-card {
    cursor: pointer;
    text-align: center;
    outline: none;
    border: none;
    background: none;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--cfg-duration) var(--cfg-ease);
}
.cfg-fabric-card:hover { transform: translateY(-2px); }
.cfg-fabric-card-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--cfg-radius-sm);
    border: 3px solid transparent;
    display: block;
    background: var(--cfg-bg-off);
    transition: border-color var(--cfg-duration) var(--cfg-ease), box-shadow var(--cfg-duration) var(--cfg-ease);
}
.cfg-fabric-card:hover .cfg-fabric-card-img {
    border-color: var(--cfg-orange);
    box-shadow: 0 2px 12px rgba(235, 167, 122, 0.25);
}
.cfg-fabric-card:focus-visible .cfg-fabric-card-img { border-color: var(--cfg-green); box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-fabric-card.selected .cfg-fabric-card-img {
    border-color: var(--cfg-green);
    box-shadow: 0 0 0 5px var(--cfg-green-glow), 0 2px 12px rgba(134, 177, 154, 0.3);
}
.cfg-fabric-card-name {
    display: block;
    margin-top: 8px;
    font-family: var(--cfg-font-sans);
    font-size: 12px;
    font-weight: 500;
    color: var(--cfg-text-mid);
    line-height: 1.3;
    transition: color var(--cfg-duration) var(--cfg-ease);
}
.cfg-fabric-card.selected .cfg-fabric-card-name { color: var(--cfg-green-dark); font-weight: 600; }
.cfg-fabric-empty { grid-column: 1 / -1; text-align: center; padding: 48px 20px; color: var(--cfg-text-light); font-family: var(--cfg-font-sans); font-size: 15px; }

/* Fabric Pagination */
.cfg-fabric-pager {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
    font-family: var(--cfg-font-sans);
}
.cfg-fabric-pager-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 18px;
    font-family: var(--cfg-font-sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--cfg-text-mid);
    background: var(--cfg-bg-white);
    border: 2px solid var(--cfg-border);
    border-radius: 8px;
    cursor: pointer;
    outline: none;
    transition: all 200ms var(--cfg-ease);
}
.cfg-fabric-pager-btn:hover { border-color: var(--cfg-green); color: var(--cfg-green-dark); }
.cfg-fabric-pager-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.cfg-fabric-pager-btn:disabled:hover { border-color: var(--cfg-border); color: var(--cfg-text-mid); }
.cfg-fabric-pager-info {
    font-size: 13px;
    color: var(--cfg-text-light);
    font-weight: 500;
    min-width: 90px;
    text-align: center;
}

/* ------------------------------------------------------------
   9. Thickness Cards (.cfg-thick-option)
   ------------------------------------------------------------ */
.cfg-thick-group { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.cfg-thick-option {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-family: var(--cfg-font-sans);
    font-size: 15px;
    font-weight: 600;
    color: var(--cfg-text-dark);
    background: var(--cfg-bg-white);
    border: 2px solid var(--cfg-border);
    border-radius: 10px;
    cursor: pointer;
    outline: none;
    transition: all var(--cfg-duration) var(--cfg-ease);
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
}
.cfg-thick-option:hover { border-color: var(--cfg-green); background: var(--cfg-green-light); color: var(--cfg-green-dark); }
.cfg-thick-option:focus-visible { box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-thick-option.selected { background: var(--cfg-green); border-color: var(--cfg-green); color: #fff; box-shadow: var(--cfg-shadow-md); }
.cfg-thick-option.selected:hover { background: var(--cfg-green-dark); border-color: var(--cfg-green-dark); }

/* ------------------------------------------------------------
   10. Dimension Controls (.cfg-dimension-group)
   ------------------------------------------------------------ */
.cfg-dimensions { display: flex; flex-direction: column; gap: 20px; max-width: 480px; }
.cfg-dimension-group { display: flex; flex-direction: column; gap: 6px; }
.cfg-dimension-label { font-family: var(--cfg-font-sans); font-size: 14px; font-weight: 600; color: var(--cfg-text-dark); letter-spacing: 0.01em; }
.cfg-dimension-group select {
    width: 100%;
    padding: 12px 44px 12px 16px;
    font-family: var(--cfg-font-sans);
    font-size: 15px;
    color: var(--cfg-text-dark);
    background-color: var(--cfg-bg-white);
    border: 2px solid var(--cfg-border);
    border-radius: 10px;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 12px 8px;
    transition: border-color var(--cfg-duration) var(--cfg-ease), box-shadow var(--cfg-duration) var(--cfg-ease);
}
.cfg-dimension-group select:hover { border-color: #ccc; }
.cfg-dimension-group select:focus { border-color: var(--cfg-green); box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-dimension-group select option { font-family: var(--cfg-font-sans); }

/* ------------------------------------------------------------
   11. Review / Summary Panel (.cfg-review)
   ------------------------------------------------------------ */
.cfg-review { background: var(--cfg-bg-white); border: 1px solid var(--cfg-border); border-radius: var(--cfg-radius-lg); padding: 28px; box-shadow: var(--cfg-shadow-sm); }
.cfg-review-section { padding: 16px 0; border-bottom: 1px solid var(--cfg-border-light); }
.cfg-review-section:first-child { padding-top: 0; }
.cfg-review-section:last-child { border-bottom: none; padding-bottom: 0; }
.cfg-review-label { font-family: var(--cfg-font-sans); font-size: 12px; font-weight: 600; color: var(--cfg-text-light); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.cfg-review-value { font-family: var(--cfg-font-sans); font-size: 16px; font-weight: 600; color: var(--cfg-text-dark); line-height: 1.4; }
.cfg-review-swatch { display: inline-flex; align-items: center; gap: 12px; margin-top: 4px; }
.cfg-review-swatch-img { width: 44px; height: 44px; border-radius: 6px; object-fit: cover; border: 2px solid var(--cfg-border); }
.cfg-review-swatch-name { font-family: var(--cfg-font-sans); font-size: 15px; font-weight: 500; color: var(--cfg-text-dark); }
.cfg-review-price { font-family: var(--cfg-font-serif); font-size: 32px; font-weight: normal; color: var(--cfg-green); margin-top: 4px; }

/* ------------------------------------------------------------
   12. Sidebar (.cfg-sidebar)
   ------------------------------------------------------------ */
.cfg-sidebar { position: sticky; top: 24px; background: var(--cfg-bg-white); border-radius: var(--cfg-radius-lg); box-shadow: var(--cfg-shadow-md); overflow: hidden; border: 1px solid var(--cfg-border-light); }
.cfg-sidebar-preview { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; background: var(--cfg-bg-off); border-bottom: 1px solid var(--cfg-border-light); }
.cfg-sidebar-body { padding: 22px; }
.cfg-sidebar-title { font-family: var(--cfg-font-serif); font-size: 18px; color: var(--cfg-text-dark); margin: 0 0 16px; line-height: 1.3; }
.cfg-sidebar-summary { list-style: none; padding: 0; margin: 0 0 20px; display: flex; flex-direction: column; gap: 10px; }
.cfg-sidebar-summary li { display: flex; justify-content: space-between; align-items: center; font-family: var(--cfg-font-sans); font-size: 13px; color: var(--cfg-text-mid); padding-bottom: 10px; border-bottom: 1px solid var(--cfg-border-light); }
.cfg-sidebar-summary li:last-child { border-bottom: none; padding-bottom: 0; }
.cfg-sidebar-summary-label { font-weight: 400; color: var(--cfg-text-light); }
.cfg-sidebar-summary-value { font-weight: 600; color: var(--cfg-text-dark); text-align: right; max-width: 55%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cfg-sidebar-price { font-family: var(--cfg-font-serif); font-size: 26px; color: var(--cfg-green); margin: 0 0 18px; text-align: center; }

/* ------------------------------------------------------------
   13. Add to Cart Button (.cfg-add-to-cart)
   ------------------------------------------------------------ */
.cfg-add-to-cart { display: block; width: 100%; padding: 16px 24px; font-family: var(--cfg-font-sans); font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: #fff; background: var(--cfg-green); border: none; border-radius: var(--cfg-radius-md); cursor: pointer; outline: none; transition: all 200ms var(--cfg-ease); -webkit-tap-highlight-color: transparent; }
.cfg-add-to-cart:hover { background: var(--cfg-green-dark); box-shadow: var(--cfg-shadow-md); }
.cfg-add-to-cart:focus-visible { box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-add-to-cart:active { transform: scale(0.97); box-shadow: none; }
.cfg-add-to-cart:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

/* ------------------------------------------------------------
   14. Cart Confirmation Overlay (.cfg-cart-confirm)
   ------------------------------------------------------------ */
.cfg-cart-confirm { position: fixed; inset: 0; z-index: 10000; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity var(--cfg-duration) var(--cfg-ease), visibility var(--cfg-duration) var(--cfg-ease); }
.cfg-cart-confirm.visible { opacity: 1; visibility: visible; pointer-events: auto; }
.cfg-cart-confirm-backdrop { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.45); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); cursor: pointer; }
.cfg-cart-confirm-dialog { position: relative; background: var(--cfg-bg-white); border-radius: var(--cfg-radius-lg); padding: 44px 36px 36px; max-width: 420px; width: 90%; text-align: center; box-shadow: var(--cfg-shadow-lg); transform: translateY(20px) scale(0.96); transition: transform var(--cfg-duration) var(--cfg-ease); }
.cfg-cart-confirm.visible .cfg-cart-confirm-dialog { transform: translateY(0) scale(1); }
.cfg-cart-confirm-icon { display: flex; align-items: center; justify-content: center; width: 64px; height: 64px; margin: 0 auto 20px; background: var(--cfg-green-light); border-radius: 50%; }
.cfg-cart-confirm-icon::after { content: '\2713'; font-size: 30px; font-weight: 700; color: var(--cfg-green); line-height: 1; }
.cfg-cart-confirm-title { font-family: var(--cfg-font-serif); font-size: 24px; color: var(--cfg-text-dark); margin: 0 0 8px; }
.cfg-cart-confirm-text { font-family: var(--cfg-font-sans); font-size: 15px; color: var(--cfg-text-light); margin: 0 0 28px; line-height: 1.5; }
.cfg-cart-confirm-actions { display: flex; gap: 12px; justify-content: center; }
.cfg-btn-continue { flex: 1; padding: 13px 20px; font-family: var(--cfg-font-sans); font-size: 15px; font-weight: 600; color: var(--cfg-green); background: transparent; border: 2px solid var(--cfg-green); border-radius: var(--cfg-radius-md); cursor: pointer; outline: none; transition: all 200ms var(--cfg-ease); }
.cfg-btn-continue:hover { background: var(--cfg-green-light); border-color: var(--cfg-green-dark); color: var(--cfg-green-dark); }
.cfg-btn-continue:focus-visible { box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-btn-view-cart { flex: 1; padding: 13px 20px; font-family: var(--cfg-font-sans); font-size: 15px; font-weight: 600; color: #fff; background: var(--cfg-green); border: 2px solid var(--cfg-green); border-radius: var(--cfg-radius-md); cursor: pointer; outline: none; transition: all 200ms var(--cfg-ease); text-decoration: none; text-align: center; }
.cfg-btn-view-cart:hover { background: var(--cfg-green-dark); border-color: var(--cfg-green-dark); color: #fff; }
.cfg-btn-view-cart:focus-visible { box-shadow: 0 0 0 3px var(--cfg-green-glow); }

/* ------------------------------------------------------------
   15. Navigation Buttons
   ------------------------------------------------------------ */
.cfg-step-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--cfg-border-light); }
.cfg-btn-back { display: inline-flex; align-items: center; gap: 6px; padding: 10px 20px; font-family: var(--cfg-font-sans); font-size: 14px; font-weight: 600; color: var(--cfg-text-mid); background: transparent; border: 2px solid var(--cfg-border); border-radius: 10px; cursor: pointer; outline: none; transition: all 200ms var(--cfg-ease); }
.cfg-btn-back:hover { border-color: var(--cfg-text-light); color: var(--cfg-text-dark); }
.cfg-btn-back:focus-visible { box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08); }
.cfg-btn-next { display: inline-flex; align-items: center; gap: 6px; padding: 12px 28px; font-family: var(--cfg-font-sans); font-size: 15px; font-weight: 700; color: #fff; background: var(--cfg-green); border: none; border-radius: 10px; cursor: pointer; outline: none; transition: all 200ms var(--cfg-ease); margin-left: auto; }
.cfg-btn-next:hover { background: var(--cfg-green-dark); box-shadow: var(--cfg-shadow-md); }
.cfg-btn-next:focus-visible { box-shadow: 0 0 0 3px var(--cfg-green-glow); }
.cfg-btn-next:disabled { opacity: 0.45; cursor: not-allowed; box-shadow: none; }
.cfg-btn-next:active { transform: scale(0.97); }

/* ------------------------------------------------------------
   16. Loading Spinner (.cfg-loading)
   ------------------------------------------------------------ */
.cfg-loading { display: flex; align-items: center; justify-content: center; padding: 60px 20px; }
.cfg-loading::after { content: ''; width: 36px; height: 36px; border: 3px solid var(--cfg-border); border-top-color: var(--cfg-green); border-radius: 50%; animation: cfgSpin 0.7s linear infinite; }
@keyframes cfgSpin { to { transform: rotate(360deg); } }
.cfg-loading--inline { padding: 0; display: inline-flex; }
.cfg-loading--inline::after { width: 18px; height: 18px; border-width: 2px; }

/* ------------------------------------------------------------
   17. Utility Classes
   ------------------------------------------------------------ */
.cfg-hidden { display: none !important; }
.cfg-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ------------------------------------------------------------
   18. Responsive -- max-width: 1200px
   ------------------------------------------------------------ */
@media (max-width: 1200px) {
    .cfg-style-grid { grid-template-columns: repeat(3, 1fr); }
    .cfg-fabric-grid { grid-template-columns: repeat(5, 1fr); }
    #configurator { gap: 28px; grid-template-columns: 1fr 300px; }
}

/* ------------------------------------------------------------
   19. Responsive -- max-width: 900px
   ------------------------------------------------------------ */
@media (max-width: 900px) {
    #configurator { grid-template-columns: 1fr; gap: 24px; }
    .cfg-sidebar { position: relative; top: 0; order: -1; display: grid; grid-template-columns: auto 1fr; }
    .cfg-sidebar-preview { width: 180px; aspect-ratio: auto; height: 100%; border-bottom: none; border-right: 1px solid var(--cfg-border-light); border-radius: var(--cfg-radius-lg) 0 0 var(--cfg-radius-lg); }
    .cfg-sidebar-body { padding: 18px 20px; display: flex; flex-direction: column; justify-content: center; }
    .cfg-sidebar-price { margin-bottom: 0; }
    .cfg-fabric-grid { grid-template-columns: repeat(4, 1fr); gap: 14px; }
    #cfg-progress { max-width: 420px; }
    .cfg-step-title { font-size: 24px; }
}

/* ------------------------------------------------------------
   20. Responsive -- max-width: 600px
   ------------------------------------------------------------ */
@media (max-width: 600px) {
    :root { --cfg-gap: 16px; }
    #configurator { padding: 0 var(--cfg-gap); gap: 20px; }
    .cfg-sidebar { display: block; border-radius: var(--cfg-radius-md); }
    .cfg-sidebar-preview { width: 100%; aspect-ratio: 16 / 9; border-right: none; border-bottom: 1px solid var(--cfg-border-light); border-radius: var(--cfg-radius-md) var(--cfg-radius-md) 0 0; }
    .cfg-sidebar-body { padding: 16px; }
    .cfg-style-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .cfg-fabric-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .cfg-fabric-card-name { font-size: 11px; }
    #cfg-progress { margin-bottom: 28px; }
    .cfg-progress-dot { width: 28px; height: 28px; font-size: 11px; }
    .cfg-progress-label { font-size: 11px; }
    .cfg-step-title { font-size: 22px; }
    .cfg-step-desc { font-size: 14px; margin-bottom: 20px; }
    .cfg-thick-option { padding: 10px 18px; font-size: 14px; }
    .cfg-review { padding: 20px; }
    .cfg-review-price { font-size: 28px; }
    .cfg-step-nav { margin-top: 28px; padding-top: 20px; }
    .cfg-add-to-cart { font-size: 16px; padding: 15px 20px; }
    .cfg-cart-confirm-dialog { padding: 32px 24px 28px; }
    .cfg-cart-confirm-actions { flex-direction: column; }
    .cfg-btn-continue, .cfg-btn-view-cart { width: 100%; }
}

/* ------------------------------------------------------------
   21. Responsive -- max-width: 460px
   ------------------------------------------------------------ */
@media (max-width: 460px) {
    .cfg-fabric-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .cfg-thick-group { flex-direction: column; }
    .cfg-thick-option { width: 100%; text-align: center; justify-content: center; }
    .cfg-progress-label { font-size: 10px; letter-spacing: 0; }
    .cfg-progress-dot { width: 26px; height: 26px; font-size: 10px; border-width: 2px; }
    #cfg-progress::before, #cfg-progress::after { top: 13px; }
    .cfg-sidebar-title { font-size: 16px; }
    .cfg-sidebar-price { font-size: 22px; }
}

/* ------------------------------------------------------------
   22. Reduced Motion
   ------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .cfg-step-panel.active { animation: none; opacity: 1; transform: none; }
    .cfg-step-panel.exit-left { animation: none; }
}