:root {
  --gqb-blue: #1a3a5c;
  --gqb-blue-light: #2563a8;
  --gqb-accent: #e8900a;
  --gqb-green: #16a34a;
  --gqb-red: #dc2626;
  --gqb-gray: #f4f6f9;
  --gqb-border: #dde3ea;
  --gqb-text: #222831;
  --gqb-muted: #6b7280;
  --gqb-radius: 10px;
  --gqb-shadow: 0 2px 10px rgba(0,0,0,.09);
}

.gqb-wrap * { box-sizing: border-box; }
.gqb-wrap { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: var(--gqb-text); max-width: 1100px; margin: 0 auto; padding: 20px 16px 60px; }
.gqb-hidden { display: none !important; }

.gqb-progress { display: flex; align-items: center; margin-bottom: 36px; padding: 24px 20px; background: #fff; border-radius: var(--gqb-radius); box-shadow: var(--gqb-shadow); }
.gqb-progress-step { display: flex; flex-direction: column; align-items: center; gap: 6px; flex: 0 0 auto; }
.gqb-step-num { width: 38px; height: 38px; border-radius: 50%; background: #e0e7ef; color: #888; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; transition: all .3s; }
.gqb-step-label { font-size: 12px; color: var(--gqb-muted); font-weight: 500; white-space: nowrap; }
.gqb-progress-step.active .gqb-step-num { background: var(--gqb-blue); color: #fff; }
.gqb-progress-step.active .gqb-step-label { color: var(--gqb-blue); font-weight: 700; }
.gqb-progress-step.done .gqb-step-num { background: var(--gqb-green); color: #fff; }
.gqb-progress-divider { flex: 1; height: 3px; background: #e0e7ef; margin: 0 8px 18px; }
.gqb-progress-divider.done { background: var(--gqb-green); }

.gqb-step-header { margin-bottom: 24px; }
.gqb-step-header h2 { margin: 0 0 8px; font-size: 26px; color: var(--gqb-blue); }
.gqb-step-header p { margin: 0; color: var(--gqb-muted); font-size: 15px; }

.gqb-card { background: #fff; border: 1px solid var(--gqb-border); border-radius: var(--gqb-radius); padding: 24px; margin-bottom: 20px; box-shadow: var(--gqb-shadow); }
.gqb-card h3 { margin: 0 0 20px; font-size: 17px; color: var(--gqb-blue); border-bottom: 2px solid var(--gqb-blue); padding-bottom: 10px; }

.gqb-form-row { margin-bottom: 20px; }
.gqb-form-row > label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 10px; }
.gqb-note { font-weight: 400; color: var(--gqb-muted); font-size: 12px; }
.gqb-input, .gqb-select, .gqb-textarea { width: 100%; padding: 10px 14px; border: 1.5px solid var(--gqb-border); border-radius: 7px; font-size: 14px; color: var(--gqb-text); background: #fff; transition: border-color .2s, box-shadow .2s; }
.gqb-input:focus, .gqb-select:focus, .gqb-textarea:focus { outline: none; border-color: var(--gqb-blue-light); box-shadow: 0 0 0 3px rgba(37,99,168,.12); }
.gqb-input-sm { width: 140px; padding: 8px 12px; border: 1.5px solid var(--gqb-border); border-radius: 7px; font-size: 14px; }
.gqb-textarea { resize: vertical; }

.gqb-radio-group, .gqb-checkbox-group { display: flex; flex-wrap: wrap; gap: 10px; }
.gqb-radio, .gqb-checkbox { display: flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1.5px solid var(--gqb-border); border-radius: 7px; cursor: pointer; font-size: 14px; transition: all .2s; user-select: none; }
.gqb-radio:hover, .gqb-checkbox:hover { border-color: var(--gqb-blue-light); background: #f0f6ff; }
.gqb-radio input, .gqb-checkbox input { margin: 0; accent-color: var(--gqb-blue); }

.gqb-conditional { display: none; margin-top: 16px; padding: 16px; background: var(--gqb-gray); border-radius: 8px; border-left: 3px solid var(--gqb-blue-light); }
.gqb-conditional.visible { display: block; }

.gqb-btn-row { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }
.gqb-btn { padding: 12px 28px; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; border: none; transition: all .2s; line-height: 1; }
.gqb-btn-primary { background: var(--gqb-blue); color: #fff; }
.gqb-btn-primary:hover { background: var(--gqb-blue-light); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(26,58,92,.3); }
.gqb-btn-secondary { background: #fff; color: var(--gqb-blue); border: 2px solid var(--gqb-blue); }
.gqb-btn-secondary:hover { background: var(--gqb-gray); }
.gqb-btn-success { background: var(--gqb-green); color: #fff; font-size: 16px; padding: 14px 32px; }
.gqb-btn-success:hover { background: #15803d; }
.gqb-btn:disabled { opacity: .6; cursor: not-allowed; transform: none !important; }

.gqb-loading-state { text-align: center; padding: 60px 20px; color: var(--gqb-muted); }
.gqb-spinner { width: 44px; height: 44px; border: 4px solid #e0e7ef; border-top-color: var(--gqb-blue); border-radius: 50%; animation: gqb-spin 1s linear infinite; margin: 0 auto 16px; }
@keyframes gqb-spin { to { transform: rotate(360deg); } }

.gqb-section-title { font-size: 18px; color: var(--gqb-blue); margin: 24px 0 16px; font-weight: 700; }
.gqb-product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; margin-bottom: 32px; }
.gqb-product-card { background: #fff; border: 2px solid var(--gqb-border); border-radius: var(--gqb-radius); padding: 16px; display: flex; flex-direction: column; gap: 10px; transition: all .2s; position: relative; }
.gqb-product-card:hover { border-color: var(--gqb-blue-light); box-shadow: 0 4px 16px rgba(26,58,92,.12); }
.gqb-product-card.in-quote { border-color: var(--gqb-green); background: #f0fdf4; }
.gqb-product-card-img { width: 100%; height: 110px; object-fit: contain; border-radius: 6px; background: #f8f9fa; padding: 6px; }
.gqb-product-name { font-weight: 700; font-size: 14px; color: var(--gqb-blue); line-height: 1.3; }
.gqb-product-cat { font-size: 11px; color: #fff; background: var(--gqb-blue); padding: 2px 8px; border-radius: 20px; display: inline-block; }
.gqb-product-desc { font-size: 12px; color: var(--gqb-muted); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.gqb-product-price { font-size: 14px; margin: 6px 0; min-height: 20px; }
.gqb-product-price.loading { color: var(--gqb-muted); font-size: 12px; font-style: italic; }
.gqb-product-price.has-price strong { font-size: 18px; font-weight: 700; color: var(--gqb-green); }
.gqb-product-price .gqb-price-source { font-size: 11px; color: var(--gqb-muted); font-weight: 400; display: block; margin-top: 1px; }
.gqb-product-price.no-price a { font-size: 12px; color: var(--gqb-blue); text-decoration: none; }
.gqb-product-price.no-price a:hover { text-decoration: underline; }
.gqb-product-actions { display: flex; gap: 8px; align-items: center; margin-top: auto; }
.gqb-qty-control { display: flex; align-items: center; gap: 6px; }
.gqb-qty-btn { width: 28px; height: 28px; border: 1.5px solid var(--gqb-border); background: #fff; border-radius: 6px; font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.gqb-qty-btn:hover { border-color: var(--gqb-blue); color: var(--gqb-blue); }
.gqb-qty-input { width: 44px; text-align: center; border: 1.5px solid var(--gqb-border); border-radius: 6px; font-size: 14px; padding: 4px; }
.gqb-add-btn { flex: 1; padding: 8px 12px; background: var(--gqb-blue); color: #fff; border: none; border-radius: 7px; font-size: 13px; font-weight: 600; cursor: pointer; transition: background .2s; }
.gqb-add-btn:hover { background: var(--gqb-blue-light); }
.gqb-added-badge { flex: 1; padding: 8px 12px; background: var(--gqb-green); color: #fff; border: none; border-radius: 7px; font-size: 13px; font-weight: 600; text-align: center; }

.gqb-browse-section { background: #fff; border: 1px solid var(--gqb-border); border-radius: var(--gqb-radius); padding: 24px; margin-bottom: 90px; }
.gqb-browse-controls { display: flex; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.gqb-search-input { flex: 1; min-width: 200px; padding: 10px 14px; border: 1.5px solid var(--gqb-border); border-radius: 7px; font-size: 14px; }
.gqb-search-input:focus { outline: none; border-color: var(--gqb-blue-light); }

.gqb-quote-summary-bar { position: fixed; bottom: 0; left: 0; right: 0; background: var(--gqb-blue); color: #fff; z-index: 9999; transform: translateY(100%); transition: transform .3s; box-shadow: 0 -4px 20px rgba(0,0,0,.2); }
.gqb-quote-summary-bar.visible { transform: translateY(0); }
.gqb-quote-bar-inner { max-width: 1100px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.gqb-quote-bar-info { font-size: 15px; }
.gqb-price-note { font-size: 11px; opacity: .75; }
#gqb-selected-count { font-size: 20px; font-weight: 700; }

.gqb-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.gqb-form-field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 7px; }
.gqb-full-width { grid-column: 1 / -1; }
.gqb-required { color: var(--gqb-red); }

.gqb-review-contact-card { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; font-size: 14px; }
.gqb-rc-item strong { display: block; font-size: 11px; text-transform: uppercase; color: var(--gqb-muted); margin-bottom: 4px; letter-spacing: .5px; }
.gqb-review-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.gqb-review-table th { text-align: left; padding: 10px 12px; background: var(--gqb-blue); color: #fff; font-size: 13px; }
.gqb-review-table td { padding: 10px 12px; border-bottom: 1px solid #eee; vertical-align: middle; }
.gqb-review-table tfoot td { padding: 10px 12px; font-weight: 600; border-top: 2px solid var(--gqb-border); }
.gqb-review-table tfoot tr:last-child td { background: #eef4fb; color: var(--gqb-blue); font-size: 16px; font-weight: 700; }
.gqb-remove-item { background: none; border: none; color: var(--gqb-red); font-size: 18px; cursor: pointer; padding: 0 6px; }

.gqb-notice { padding: 14px 18px; border-radius: 8px; font-size: 14px; margin: 16px 0; }
.gqb-notice-info { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.gqb-notice-error { background: #fef2f2; border: 1px solid #fecaca; color: var(--gqb-red); }

.gqb-success-screen { text-align: center; padding: 60px 20px; }
.gqb-success-icon { font-size: 72px; margin-bottom: 16px; }
.gqb-success-screen h2 { font-size: 28px; color: var(--gqb-green); margin: 0 0 12px; }
.gqb-success-screen p { color: var(--gqb-muted); font-size: 16px; }
.gqb-success-details { background: var(--gqb-gray); border-radius: 10px; padding: 24px; display: inline-block; margin: 24px 0; min-width: 320px; text-align: left; }

@media (max-width: 640px) {
  .gqb-form-grid, .gqb-review-contact-card { grid-template-columns: 1fr; }
  .gqb-product-grid { grid-template-columns: 1fr; }
  .gqb-progress-step .gqb-step-label { display: none; }
  .gqb-browse-controls { flex-direction: column; }
}