/* ============================================================================
   Grafline Product Configurator — configurator.css
   Premium redesign: Grafline red brand, card-section layout, print-shop UX.
   Mobile-first, CSS-variable-driven.
   ============================================================================ */

/* ── CSS Custom Properties ────────────────────────────────────────────────── */
:root {
  /* Grafline brand palette */
  --gcfg-accent:          #e63329;
  --gcfg-accent-hover:    #c0291f;
  --gcfg-accent-light:    #fff8f7;   /* very light red tint */
  --gcfg-accent-shadow:   rgba(230, 51, 41, 0.22);
  --gcfg-accent-text:     #ffffff;

  --gcfg-text:            #1a1f36;
  --gcfg-text-muted:      #6b7280;
  --gcfg-text-light:      #9ca3af;

  --gcfg-bg:              #ffffff;
  --gcfg-bg-page:         #f7f8fa;
  --gcfg-border:          #e8ecf0;
  --gcfg-border-input:    #d1d9e0;

  --gcfg-success:         #059669;
  --gcfg-success-light:   #ecfdf5;
  --gcfg-success-border:  #6ee7b7;
  --gcfg-error:           #dc2626;
  --gcfg-error-light:     #fef2f2;

  --gcfg-price-color:     #1a1f36;
  --gcfg-price-size:      2.5rem;

  --gcfg-radius:          0.75rem;   /* 12px */
  --gcfg-radius-sm:       0.5rem;    /* 8px */
  --gcfg-radius-pill:     9999px;

  --gcfg-shadow-sm:       0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --gcfg-shadow:          0 4px 12px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.04);
  --gcfg-shadow-lg:       0 10px 24px rgba(0,0,0,.09), 0 4px 8px rgba(0,0,0,.05);
  --gcfg-shadow-red:      0 2px 10px rgba(230, 51, 41, 0.20);

  --gcfg-font:            'Inter', system-ui, -apple-system, sans-serif;
  --gcfg-transition:      180ms cubic-bezier(0.4, 0, 0.2, 1);
  --gcfg-transition-fast: 100ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reduced motion ───────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  :root {
    --gcfg-transition:      0ms;
    --gcfg-transition-fast: 0ms;
  }
  .gcfg-price-amount,
  .gcfg-add-to-cart,
  .gcfg-option-btn,
  .gcfg-upload-zone {
    transition: none !important;
  }
}

/* ── Reset / base ─────────────────────────────────────────────────────────── */
.grafline-configurator *,
.grafline-configurator *::before,
.grafline-configurator *::after {
  box-sizing: border-box;
}

.grafline-configurator {
  font-family: var(--gcfg-font);
  color: var(--gcfg-text);
  background: transparent;
  max-width: 680px;
  margin: 1.5rem 0 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Section cards ────────────────────────────────────────────────────────── */
.gcfg-section {
  background: var(--gcfg-bg);
  border: 1px solid var(--gcfg-border);
  border-radius: var(--gcfg-radius);
  padding: 18px 20px 20px;
  position: relative;
}

/* Section header row: number badge + title + icon */
.gcfg-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

/* Numbered badge */
.gcfg-section-num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gcfg-accent);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* Section icon */
.gcfg-section-icon {
  flex-shrink: 0;
  color: var(--gcfg-text-muted);
  display: flex;
  align-items: center;
}

.gcfg-section-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gcfg-text);
  margin: 0;
  padding: 0;
  line-height: 1.2;
  flex: 1;
}

.gcfg-section-desc {
  font-size: 0.8125rem;
  color: var(--gcfg-text-muted);
  margin: -6px 0 12px 34px;
  padding: 0;
  line-height: 1.5;
}

/* Info-only section (no header num/icon needed, more compact) */
.gcfg-section--info {
  background: #f9fbfd;
  border-color: #dde5ee;
  padding: 12px 16px;
}

.gcfg-section--info .gcfg-section-desc {
  margin: 0;
  font-size: 0.875rem;
}

/* ── Option buttons ───────────────────────────────────────────────────────── */
.gcfg-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.gcfg-option-btn {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 2px;
  /* Avoid clipping labels when parent column is narrow (e.g. tight WC grid). Checkmark uses ::after, not overflow. */
  overflow: visible;

  padding: 10px 14px;
  min-width: 72px;
  min-height: 44px;        /* 44px touch target */

  background: var(--gcfg-bg);
  border: 1.5px solid var(--gcfg-border-input);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: var(--gcfg-shadow-sm);

  font-family: var(--gcfg-font);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gcfg-text);
  text-align: left;
  line-height: 1.2;

  transition:
    border-color var(--gcfg-transition),
    background   var(--gcfg-transition),
    box-shadow   var(--gcfg-transition),
    transform    var(--gcfg-transition-fast);

  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

@media (hover: hover) {
  .gcfg-option-btn:hover {
    border-color: var(--gcfg-accent);
    background: var(--gcfg-accent-light);
    box-shadow: var(--gcfg-shadow-sm);
  }
}

.gcfg-option-btn:focus-visible {
  outline: 2px solid var(--gcfg-accent);
  outline-offset: 2px;
}

.gcfg-option-btn:active {
  transform: scale(0.97);
}

/* ── Selected state ── */
.gcfg-option-btn.is-selected {
  padding-right: 28px;
  border-color: var(--gcfg-accent);
  border-width: 2px;
  background: var(--gcfg-bg);
  box-shadow: var(--gcfg-shadow-red);
  color: var(--gcfg-text);
}

/* Red checkmark in top-right of selected button */
.gcfg-option-btn.is-selected::after {
  content: '';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gcfg-accent)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12' fill='none' stroke='%23fff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='2 6.5 5 9.5 10 3'/%3E%3C/svg%3E")
    center/10px no-repeat;
  flex-shrink: 0;
}

/* Sub-label */
.gcfg-option-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  white-space: normal;
  word-break: break-word;
  line-height: 1.25;
  max-width: 100%;
}

.gcfg-option-sub {
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gcfg-text-muted);
  white-space: normal;
  word-break: break-word;
  line-height: 1.2;
  max-width: 100%;
}

.gcfg-option-btn.is-selected .gcfg-option-sub {
  color: var(--gcfg-text-muted);
}

/* Savings badge on quantity buttons */
.gcfg-savings-badge {
  display: inline-block;
  margin-top: 3px;
  padding: 1px 5px;
  background: #fef9c3;
  color: #854d0e;
  border-radius: 4px;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Quantity buttons grid */
.gcfg-options--quantity {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 8px;
}

.gcfg-option-btn--qty {
  width: 100%;
  align-items: center;
  text-align: center;
}

.gcfg-option-btn--qty .gcfg-option-label,
.gcfg-option-btn--qty .gcfg-option-sub {
  text-align: center;
  width: 100%;
}

/* Per-unit sub label on qty btns */
.gcfg-option-unit {
  display: block;
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--gcfg-text-light);
  white-space: nowrap;
  text-align: center;
  width: 100%;
  margin-top: 1px;
}

/* Savings badge — tighter */
.gcfg-savings-badge {
  font-size: 0.5625rem;
  padding: 1px 4px;
}

/* Delivery buttons — always in a row, but allow wrapping text */
.gcfg-options--delivery {
  flex-direction: row;
  gap: 8px;
}

.gcfg-options--delivery .gcfg-option-btn {
  flex: 1;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  padding: 10px 12px;
}

.gcfg-options--delivery .gcfg-option-btn .gcfg-option-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.gcfg-options--delivery .gcfg-option-btn .gcfg-option-sub {
  white-space: normal;
  word-break: break-word;
  font-size: 0.6875rem;
}

/* ── Ripple ───────────────────────────────────────────────────────────────── */
.gcfg-ripple {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120%;
  padding-top: 120%;
  transform: translate(-50%, -50%) scale(0);
  background: rgba(230, 51, 41, 0.12);
  border-radius: 50%;
  animation: gcfg-ripple-anim 380ms ease-out forwards;
  pointer-events: none;
}

@keyframes gcfg-ripple-anim {
  to { transform: translate(-50%, -50%) scale(1); opacity: 0; }
}

/* ── Price Summary ────────────────────────────────────────────────────────── */
.gcfg-summary {
  background: var(--gcfg-bg);
  border: 1px solid var(--gcfg-border);
  border-radius: var(--gcfg-radius);
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  padding: 16px 20px;
}

/* Price block: vertical stack — no horizontal competition */
.gcfg-price-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Label row: SKUPAJ */
.gcfg-price-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gcfg-text-muted);
  display: block;
  margin-bottom: 2px;
}

/* Price display: big number */
.gcfg-price-left {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.gcfg-price-display {
  display: flex;
  align-items: baseline;
  gap: 3px;
}

.gcfg-price-currency {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--gcfg-accent);
  line-height: 1;
}

.gcfg-price-amount {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--gcfg-text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: color 200ms ease;
}

/* Flash animation on update */
.gcfg-price-amount.is-updating {
  color: var(--gcfg-accent);
}

/* Per-unit + VAT row */
.gcfg-price-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
  margin-top: 4px;
}

.gcfg-price-per-unit {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gcfg-text-muted);
}

.gcfg-price-vat {
  font-size: 0.6875rem;
  color: var(--gcfg-text-light);
}

/* Delivery badge — green pill, own row */
.gcfg-delivery-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  background: var(--gcfg-success-light);
  border: 1px solid var(--gcfg-success-border);
  border-radius: var(--gcfg-radius-pill);
  font-size: 0.8125rem;
  color: #065f46;
  white-space: nowrap;
  align-self: flex-start;
  margin-top: 2px;
}

.gcfg-delivery-badge svg {
  flex-shrink: 0;
  color: var(--gcfg-success);
}

.gcfg-delivery-badge strong {
  color: #065f46;
  font-weight: 600;
}

/* ── File Upload zone ─────────────────────────────────────────────────────── */
.gcfg-upload-zone {
  position: relative;
  border: 3px dashed var(--gcfg-border-input);
  border-radius: var(--gcfg-radius);
  background: #fafbfc;
  padding: 2rem 1.5rem;
  cursor: pointer;
  transition:
    border-color var(--gcfg-transition),
    background   var(--gcfg-transition),
    box-shadow   var(--gcfg-transition);
  outline: none;
}

@media (hover: hover) {
  .gcfg-upload-zone:hover {
    border-color: var(--gcfg-accent);
    background: var(--gcfg-accent-light);
  }
}

.gcfg-upload-zone:focus-visible {
  border-color: var(--gcfg-accent);
  box-shadow: 0 0 0 3px rgba(230, 51, 41, 0.15);
}

.gcfg-upload-zone.is-dragover {
  border-color: var(--gcfg-accent);
  background: var(--gcfg-accent-light);
  box-shadow: 0 0 0 4px rgba(230, 51, 41, 0.12);
}

.gcfg-upload-zone.has-error {
  border-color: var(--gcfg-error);
  background: var(--gcfg-error-light);
}

.gcfg-upload-zone.is-uploaded {
  border-style: solid;
  border-width: 2px;
  border-color: var(--gcfg-success);
  background: var(--gcfg-success-light);
  cursor: default;
}

/* Idle state */
.gcfg-upload-idle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.gcfg-upload-icon {
  color: var(--gcfg-text-light);
  transition: color var(--gcfg-transition), transform var(--gcfg-transition);
}

@media (hover: hover) {
  .gcfg-upload-zone:hover .gcfg-upload-icon,
  .gcfg-upload-zone.is-dragover .gcfg-upload-icon {
    color: var(--gcfg-accent);
    transform: translateY(-4px);
  }
}

.gcfg-upload-prompt {
  font-size: 0.9375rem;
  color: var(--gcfg-text-muted);
  margin: 0;
  line-height: 1.6;
}

.gcfg-upload-link {
  color: var(--gcfg-accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

.gcfg-upload-hint {
  font-size: 0.75rem;
  color: var(--gcfg-text-light);
  margin: 0;
  letter-spacing: 0.03em;
}

/* Progress state */
.gcfg-upload-progress {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 0.5rem 0;
}

.gcfg-progress-bar {
  width: 100%;
  max-width: 320px;
  height: 6px;
  background: var(--gcfg-border);
  border-radius: var(--gcfg-radius-pill);
  overflow: hidden;
}

.gcfg-progress-fill {
  height: 100%;
  background: var(--gcfg-accent);
  border-radius: var(--gcfg-radius-pill);
  width: 0%;
  transition: width 200ms ease;
}

.gcfg-upload-status {
  font-size: 0.875rem;
  color: var(--gcfg-text-muted);
  margin: 0;
}

/* Done state */
.gcfg-upload-done {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.gcfg-upload-check {
  color: var(--gcfg-success);
  animation: gcfg-pop-in 280ms cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes gcfg-pop-in {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.gcfg-upload-filename {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #065f46;
  margin: 0;
  word-break: break-all;
  text-align: center;
}

.gcfg-upload-remove {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  color: var(--gcfg-text-muted);
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--gcfg-border-input);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: var(--gcfg-radius-pill);
  transition: color var(--gcfg-transition), background var(--gcfg-transition), border-color var(--gcfg-transition);
  font-family: var(--gcfg-font);
}

@media (hover: hover) {
  .gcfg-upload-remove:hover {
    color: var(--gcfg-error);
    background: var(--gcfg-error-light);
    border-color: var(--gcfg-error);
  }
}

/* Hidden real input */
.gcfg-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Upload error */
.gcfg-upload-error {
  margin: 8px 0 0;
  font-size: 0.875rem;
  color: var(--gcfg-error);
  display: flex;
  align-items: center;
  gap: 5px;
}

.gcfg-upload-error::before {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  background: var(--gcfg-error)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2.5'%3E%3Cline x1='12' y1='8' x2='12' y2='12'/%3E%3Cline x1='12' y1='16' x2='12.01' y2='16'/%3E%3C/svg%3E")
    center/10px no-repeat;
  border-radius: 50%;
}

/* ── Notes textarea ───────────────────────────────────────────────────────── */
.gcfg-notes {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--gcfg-border-input);
  border-radius: var(--gcfg-radius-sm);
  font-family: var(--gcfg-font);
  font-size: 0.9375rem;
  color: var(--gcfg-text);
  background: var(--gcfg-bg);
  resize: vertical;
  transition: border-color var(--gcfg-transition), box-shadow var(--gcfg-transition);
  outline: none;
  min-height: 80px;
}

.gcfg-notes:focus {
  border-color: var(--gcfg-accent);
  box-shadow: 0 0 0 3px rgba(230, 51, 41, 0.12);
}

.gcfg-notes::placeholder {
  color: var(--gcfg-text-light);
}

/* ── Actions / Add to cart ────────────────────────────────────────────────── */
.gcfg-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  /* No card background — raw */
}

.gcfg-add-to-cart {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 56px;
  padding: 0 2rem;
  background: var(--gcfg-accent);
  color: #fff !important;
  border: none;
  border-radius: var(--gcfg-radius);
  font-family: var(--gcfg-font);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  text-decoration: none !important;
  transition:
    background   var(--gcfg-transition),
    box-shadow   var(--gcfg-transition),
    transform    var(--gcfg-transition-fast);
  box-shadow: 0 4px 16px var(--gcfg-accent-shadow);
  position: relative;
  overflow: hidden;
}

@media (hover: hover) {
  .gcfg-add-to-cart:hover {
    background: var(--gcfg-accent-hover);
    box-shadow: 0 6px 24px rgba(230, 51, 41, 0.35);
    transform: translateY(-1px);
  }
}

.gcfg-add-to-cart:active {
  transform: scale(0.98) translateY(0);
}

.gcfg-add-to-cart:focus-visible {
  outline: 2px solid var(--gcfg-accent);
  outline-offset: 3px;
}

/* Loading state */
.gcfg-add-to-cart.is-loading {
  background: var(--gcfg-accent-hover);
  pointer-events: none;
}

.gcfg-add-to-cart.is-loading::after {
  content: '';
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: gcfg-spin 0.65s linear infinite;
}

/* Success state */
.gcfg-add-to-cart.is-success {
  background: var(--gcfg-success);
  box-shadow: 0 4px 16px rgba(5, 150, 105, 0.30);
}

@keyframes gcfg-spin {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* Cart error */
.gcfg-cart-error {
  font-size: 0.875rem;
  color: var(--gcfg-error);
  margin: 0;
  text-align: center;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .gcfg-section {
    padding: 14px 14px 16px;
  }

  .gcfg-summary {
    padding: 12px 14px;
  }

  .gcfg-price-amount {
    font-size: 2rem;
  }

  .gcfg-option-btn {
    padding: 10px 12px;
    min-height: 44px;
  }

  .gcfg-option-btn--qty {
    min-width: 64px;
  }

  .gcfg-upload-zone {
    padding: 1.5rem 1rem;
  }

  .gcfg-add-to-cart {
    height: 52px;
    font-size: 1rem;
  }
}

@media (min-width: 768px) {
  .gcfg-section {
    padding: 20px 24px 22px;
  }

  .gcfg-summary {
    padding: 18px 24px;
  }
}

/* ── 2-column wide layout ─────────────────────────────────────────────────── */
.gcfg-layout {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gcfg-main {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.gcfg-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 900px) {
  .grafline-configurator {
    max-width: 100%;
  }

  .gcfg-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .gcfg-main {
    flex: 1;
  }

  .gcfg-sidebar {
    width: 320px;
    flex-shrink: 0;
    position: sticky;
    top: 90px;
  }
}

/* ── Demago-style Quantity Section ────────────────────────────────────────── */
.gcfg-section--qty-demago {
  padding: 0;
  overflow: hidden;
}

/* ── Top bar: title on left, mutations on right ── */
.gcfg-qty-topbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px 20px 14px;
  border-bottom: 1px solid var(--gcfg-border);
}

@media (min-width: 640px) {
  .gcfg-qty-topbar {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 16px;
  }
}

/* Mutations bar */
.gcfg-mutations-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

@media (min-width: 640px) {
  .gcfg-mutations-bar {
    margin-left: auto;
  }
}

.gcfg-mutations-label {
  font-size: 0.8125rem;
  color: var(--gcfg-text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.gcfg-mutations-select {
  border: 1.5px solid var(--gcfg-border-input);
  border-radius: var(--gcfg-radius-sm);
  padding: 6px 30px 6px 10px;
  font-size: 0.9375rem;
  font-family: var(--gcfg-font);
  color: var(--gcfg-text);
  background: var(--gcfg-bg)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236b7280'/%3E%3C/svg%3E")
    right 8px center / 10px no-repeat;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  min-width: 68px;
  height: 38px;
  transition: border-color var(--gcfg-transition);
}

.gcfg-mutations-select:focus {
  outline: 2px solid var(--gcfg-accent);
  outline-offset: 2px;
  border-color: var(--gcfg-accent);
}

.gcfg-info-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #dbeafe;
  color: #1d4ed8;
  border: none;
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  font-family: var(--gcfg-font);
  flex-shrink: 0;
  transition: background var(--gcfg-transition);
}

@media (hover: hover) {
  .gcfg-info-btn:hover { background: #bfdbfe; }
}

/* ── Quantity table ── */
/* Mobile default: 2 columns */
.gcfg-qty-table {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 6px 8px;
}

/* Hide vertical dividers on mobile — use border-right instead */
.gcfg-qty-col-divider {
  display: none;
}

.gcfg-qty-col {
  display: flex;
  flex-direction: column;
}

/* First 2 columns: left half; last 2: right half */
/* On mobile, merge col1+col2 side by side, col3+col4 side by side */
/* Actually: show all 4 cols in 2×2 layout */

/* Desktop: restore 4-column layout with dividers */
@media (min-width: 700px) {
  .gcfg-qty-table {
    display: flex;
    flex-direction: row;
    padding: 6px 12px;
  }

  .gcfg-qty-col-divider {
    display: block;
    width: 1px;
    background: var(--gcfg-border);
    margin: 4px 0;
    flex-shrink: 0;
    align-self: stretch;
  }

  .gcfg-qty-col {
    flex: 1;
  }
}

/* Individual quantity row */
.gcfg-qty-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: background var(--gcfg-transition);
  -webkit-tap-highlight-color: transparent;
  min-height: 40px;
  user-select: none;
}

@media (hover: hover) {
  .gcfg-qty-row:hover { background: var(--gcfg-accent-light); }
}

.gcfg-qty-row:focus-visible {
  outline: 2px solid var(--gcfg-accent);
  outline-offset: -2px;
}

.gcfg-qty-row.is-selected {
  background: var(--gcfg-accent-light);
}

/* Radio circle */
.gcfg-qty-radio {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--gcfg-border-input);
  background: var(--gcfg-bg);
  transition: border-color var(--gcfg-transition), background var(--gcfg-transition);
  position: relative;
}

.gcfg-qty-row.is-selected .gcfg-qty-radio {
  border-color: var(--gcfg-accent);
  background: var(--gcfg-accent);
}

.gcfg-qty-row.is-selected .gcfg-qty-radio::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
}

.gcfg-qty-kos {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gcfg-text);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 700px) {
  .gcfg-qty-kos { font-size: 0.875rem; }
}

.gcfg-qty-row.is-selected .gcfg-qty-kos {
  font-weight: 700;
  color: var(--gcfg-accent);
}

.gcfg-qty-price {
  font-size: 0.75rem;
  color: var(--gcfg-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

@media (min-width: 700px) {
  .gcfg-qty-price { font-size: 0.875rem; }
}

.gcfg-qty-row.is-selected .gcfg-qty-price {
  color: var(--gcfg-text);
  font-weight: 600;
}

/* ── Footer: custom qty + summary ── */
.gcfg-qty-footer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 20px 16px;
  border-top: 1px solid var(--gcfg-border);
  background: #fafbfc;
}

@media (min-width: 600px) {
  .gcfg-qty-footer {
    flex-direction: row;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 12px 24px;
  }
}

.gcfg-qty-custom {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 180px;
}

.gcfg-qty-custom-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gcfg-qty-custom-text strong {
  font-size: 0.8125rem;
  color: var(--gcfg-accent);
  font-weight: 700;
}

.gcfg-qty-custom-text span {
  font-size: 0.75rem;
  color: var(--gcfg-text-muted);
  font-style: italic;
}

.gcfg-qty-custom-row {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-top: 6px;
}

.gcfg-qty-custom-input {
  flex: 1;
  max-width: 130px;
  padding: 8px 10px;
  border: 1.5px solid var(--gcfg-border-input);
  border-radius: var(--gcfg-radius-sm);
  font-size: 0.9375rem;
  font-family: var(--gcfg-font);
  color: var(--gcfg-text);
  transition: border-color var(--gcfg-transition), box-shadow var(--gcfg-transition);
  outline: none;
}

.gcfg-qty-custom-input:focus {
  border-color: var(--gcfg-accent);
  box-shadow: 0 0 0 3px rgba(230, 51, 41, 0.12);
}

.gcfg-qty-custom-apply {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--gcfg-accent);
  color: #fff;
  border: none;
  border-radius: var(--gcfg-radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--gcfg-transition);
}

@media (hover: hover) {
  .gcfg-qty-custom-apply:hover { background: var(--gcfg-accent-hover); }
}

/* Right-side chosen summary */
.gcfg-qty-chosen {
  font-size: 0.9rem;
  color: var(--gcfg-text-muted);
  text-align: left;
}

@media (min-width: 600px) {
  .gcfg-qty-chosen {
    text-align: right;
    align-self: flex-end;
    flex-shrink: 0;
  }
}

.gcfg-qty-chosen strong {
  color: var(--gcfg-accent);
  font-weight: 700;
  font-size: 1rem;
  display: block;
  margin-top: 2px;
}

/* ── Utility: visually hidden ─────────────────────────────────────────────── */
.gcfg-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;
}