:root{--btc-white-6: color-mix(in srgb, var(--bt-white) 6%, transparent);--btc-white-8: color-mix(in srgb, var(--bt-white) 8%, transparent);--btc-white-12: color-mix(in srgb, var(--bt-white) 12%, transparent);--btc-white-18: color-mix(in srgb, var(--bt-white) 18%, transparent);--btc-white-20: color-mix(in srgb, var(--bt-white) 20%, transparent);--btc-white-30: color-mix(in srgb, var(--bt-white) 30%, transparent);--btc-white-35: color-mix(in srgb, var(--bt-white) 35%, transparent);--btc-white-40: color-mix(in srgb, var(--bt-white) 40%, transparent);--btc-white-92: color-mix(in srgb, var(--bt-white) 92%, transparent);--btc-hit-inset-sm: calc((var(--touch-target) - var(--control-h-sm)) / -2)}:root,[data-surface=default],.bt-card,.bt-supplier-card,.bt-category-card,.bt-review-card{--btc-fg: var(--text-primary);--btc-fg-muted: var(--text-secondary);--btc-line: var(--border-subtle);--btc-tint-hover: var(--button-ghost-bg-hover);--btc-tint-pressed: var(--button-ghost-bg-pressed);--btc-outline-fg: var(--button-secondary-fg);--btc-outline-border: var(--button-secondary-border);--btc-icon-hover: var(--surface-hover);--btc-icon-pressed: var(--surface-pressed);--btc-icon-fill: var(--surface-card);--btc-icon-fill-hover: var(--bt-sand-100);--btc-icon-fill-pressed: var(--bt-sand-200);--btc-icon-line: var(--border-default);--btc-icon-active: var(--text-brand);--btc-icon-muted: var(--icon-secondary);--btc-bubble-ring: var(--bt-white);--btc-chip-bg: var(--chip-bg);--btc-chip-border: var(--chip-border);--btc-chip-border-hover: var(--border-strong);--btc-crumb-sep: var(--bt-slate-400);--btc-star-empty: var(--bt-sand-400);--btc-trust-bg: var(--bt-teal-50);--btc-trust-fg: var(--bt-teal-700);--btc-search-bg: var(--bt-sand-100);--btc-search-border: var(--border-default);--btc-search-icon: var(--icon-secondary)}[data-surface=inverse]{--btc-fg: var(--text-inverse);--btc-fg-muted: var(--text-inverse-secondary);--btc-line: var(--border-inverse);--btc-tint-hover: var(--button-inverse-bg-hover);--btc-tint-pressed: var(--btc-white-18);--btc-outline-fg: var(--button-inverse-fg);--btc-outline-border: var(--button-inverse-border);--btc-icon-hover: var(--btc-white-12);--btc-icon-pressed: var(--btc-white-20);--btc-icon-fill: var(--btc-white-6);--btc-icon-fill-hover: var(--btc-white-12);--btc-icon-fill-pressed: var(--btc-white-20);--btc-icon-line: var(--btc-white-40);--btc-icon-active: var(--bt-gold-400);--btc-icon-muted: var(--text-inverse-secondary);--btc-bubble-ring: var(--bt-navy-900);--btc-chip-bg: transparent;--btc-chip-border: var(--btc-white-40);--btc-chip-border-hover: var(--bt-white);--btc-crumb-sep: var(--text-inverse-secondary);--btc-star-empty: var(--btc-white-35);--btc-trust-bg: var(--btc-white-8);--btc-trust-fg: var(--bt-gold-400);--btc-search-bg: var(--btc-white-8);--btc-search-border: var(--btc-white-30);--btc-search-icon: var(--icon-inverse)}:root{--btc-focus-halo: color-mix(in srgb, var(--input-border-focus) 16%, transparent);--btc-error-halo: color-mix(in srgb, var(--input-border-error) 16%, transparent);--btc-glyph-spinner: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 12a9 9 0 1 1-6.219-8.56'/%3E%3C/svg%3E");--btc-glyph-star: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' preserveAspectRatio='xMinYMid meet' fill='none' stroke='%23000' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11.525 2.295a.53.53 0 0 1 .95 0l2.31 4.679a2.123 2.123 0 0 0 1.595 1.16l5.166.756a.53.53 0 0 1 .294.904l-3.736 3.638a2.123 2.123 0 0 0-.611 1.878l.882 5.14a.53.53 0 0 1-.771.56l-4.618-2.428a2.122 2.122 0 0 0-1.973 0L6.396 21.01a.53.53 0 0 1-.77-.56l.881-5.139a2.122 2.122 0 0 0-.611-1.879L2.16 9.795a.53.53 0 0 1 .294-.906l5.165-.755a2.122 2.122 0 0 0 1.597-1.16z'/%3E%3C/svg%3E");--btc-glyph-star-solid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' preserveAspectRatio='xMinYMid meet' fill='%23000' stroke='%23000' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11.525 2.295a.53.53 0 0 1 .95 0l2.31 4.679a2.123 2.123 0 0 0 1.595 1.16l5.166.756a.53.53 0 0 1 .294.904l-3.736 3.638a2.123 2.123 0 0 0-.611 1.878l.882 5.14a.53.53 0 0 1-.771.56l-4.618-2.428a2.122 2.122 0 0 0-1.973 0L6.396 21.01a.53.53 0 0 1-.77-.56l.881-5.139a2.122 2.122 0 0 0-.611-1.879L2.16 9.795a.53.53 0 0 1 .294-.906l5.165-.755a2.122 2.122 0 0 0 1.597-1.16z'/%3E%3C/svg%3E")}.bt-icon{display:block;flex-shrink:0}.bt-logo{display:block;width:auto;height:var(--bt-logo-h, var(--space-8));object-fit:contain;object-position:left center}.bt-image{display:block;width:100%;height:auto}.bt-btn{--btc-btn-bg: var(--button-primary-bg);--btc-btn-bg-hover: var(--button-primary-bg-hover);--btc-btn-bg-pressed: var(--button-primary-bg-pressed);--btc-btn-fg: var(--button-primary-fg);--btc-btn-border: transparent;--btc-btn-spinner: 20px;position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:var(--button-h-md);padding:var(--space-1-5) var(--space-5);font-family:var(--font-body);font-size:var(--fs-body);font-weight:var(--fw-semibold);line-height:1.2;letter-spacing:var(--ls-label);text-align:center;text-decoration:none;color:var(--btc-btn-fg);background:var(--btc-btn-bg);border:var(--border-width-strong) solid var(--btc-btn-border);border-radius:var(--button-radius);cursor:pointer;transition:background-color var(--dur-fast) var(--ease-standard),border-color var(--dur-fast) var(--ease-standard),transform var(--dur-instant) var(--ease-standard)}.bt-btn:hover{color:var(--btc-btn-fg)}@media(hover:hover){.bt-btn:hover{background:var(--btc-btn-bg-hover)}}.bt-btn:active{background:var(--btc-btn-bg-pressed);transform:translateY(1px)}.bt-btn__content{display:inline-flex;align-items:center;gap:var(--space-2)}.bt-btn--sm{--btc-btn-spinner: 18px;min-height:var(--button-h-sm);padding-inline:14px;font-size:var(--fs-body-sm)}.bt-btn--sm:before{content:"";position:absolute;inset:var(--btc-hit-inset-sm) 0}.bt-btn--sm .bt-btn__content{gap:var(--space-1-5)}.bt-btn--lg{--btc-btn-spinner: 22px;min-height:var(--button-h-lg);padding-inline:var(--space-7)}.bt-btn--lg .bt-btn__content{gap:10px}.bt-btn--block{display:flex;width:100%}.bt-btn--secondary{--btc-btn-bg: transparent;--btc-btn-bg-hover: var(--btc-tint-hover);--btc-btn-bg-pressed: var(--btc-tint-pressed);--btc-btn-fg: var(--btc-outline-fg);--btc-btn-border: var(--btc-outline-border)}.bt-btn--tertiary{--btc-btn-bg: var(--button-tertiary-bg);--btc-btn-bg-hover: var(--button-tertiary-bg-hover);--btc-btn-bg-pressed: var(--button-tertiary-bg-pressed);--btc-btn-fg: var(--button-tertiary-fg)}.bt-btn--ghost{--btc-btn-bg: transparent;--btc-btn-bg-hover: var(--btc-tint-hover);--btc-btn-bg-pressed: var(--btc-tint-pressed);--btc-btn-fg: var(--btc-fg)}.bt-btn--accent{--btc-btn-bg: var(--button-accent-bg);--btc-btn-bg-hover: var(--button-accent-bg-hover);--btc-btn-bg-pressed: var(--button-accent-bg-pressed);--btc-btn-fg: var(--button-accent-fg)}.bt-btn--danger{--btc-btn-bg: var(--button-danger-bg);--btc-btn-bg-hover: var(--button-danger-bg-hover);--btc-btn-bg-pressed: var(--button-danger-bg-pressed);--btc-btn-fg: var(--button-danger-fg)}.bt-btn--inverse{--btc-btn-bg: transparent;--btc-btn-bg-hover: var(--button-inverse-bg-hover);--btc-btn-bg-pressed: var(--btc-white-18);--btc-btn-fg: var(--button-inverse-fg);--btc-btn-border: var(--button-inverse-border)}.bt-btn:disabled,.bt-btn[aria-disabled=true]:not([aria-busy=true]){--btc-btn-bg: var(--button-disabled-bg);--btc-btn-bg-hover: var(--button-disabled-bg);--btc-btn-bg-pressed: var(--button-disabled-bg);--btc-btn-fg: var(--button-disabled-fg);--btc-btn-border: transparent;cursor:not-allowed;transform:none}.bt-btn--secondary:disabled,.bt-btn--secondary[aria-disabled=true]:not([aria-busy=true]),.bt-btn--inverse:disabled,.bt-btn--inverse[aria-disabled=true]:not([aria-busy=true]){--btc-btn-border: var(--button-disabled-border)}.bt-btn--ghost:disabled,.bt-btn--ghost[aria-disabled=true]:not([aria-busy=true]){--btc-btn-bg: transparent;--btc-btn-bg-hover: transparent;--btc-btn-bg-pressed: transparent}.bt-btn[aria-busy=true]{cursor:progress;transform:none}.bt-btn[aria-busy=true] .bt-btn__content{visibility:hidden}.bt-btn[aria-busy=true]:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;width:var(--btc-btn-spinner);height:var(--btc-btn-spinner);margin:auto;background:currentColor;-webkit-mask:var(--btc-glyph-spinner) center / contain no-repeat;mask:var(--btc-glyph-spinner) center / contain no-repeat;animation:bt-spin .9s linear infinite}.bt-icon-btn{--btc-ib-bg: transparent;--btc-ib-bg-hover: var(--btc-icon-hover);--btc-ib-bg-pressed: var(--btc-icon-pressed);--btc-ib-fg: var(--btc-fg);--btc-ib-border: transparent;position:relative;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:var(--control-h-md);height:var(--control-h-md);padding:0;color:var(--btc-ib-fg);background:var(--btc-ib-bg);border:var(--border-width) solid var(--btc-ib-border);border-radius:var(--radius-md);text-decoration:none;cursor:pointer;transition:background-color var(--dur-fast) var(--ease-standard),transform var(--dur-instant) var(--ease-standard)}.bt-icon-btn:hover{color:var(--btc-ib-fg)}@media(hover:hover){.bt-icon-btn:hover{background:var(--btc-ib-bg-hover)}}.bt-icon-btn:active{background:var(--btc-ib-bg-pressed);transform:scale(.96)}.bt-icon-btn--secondary{--btc-ib-bg: var(--btc-icon-fill);--btc-ib-bg-hover: var(--btc-icon-fill-hover);--btc-ib-bg-pressed: var(--btc-icon-fill-pressed);--btc-ib-border: var(--btc-icon-line)}.bt-icon-btn--primary{--btc-ib-bg: var(--button-primary-bg);--btc-ib-bg-hover: var(--button-primary-bg-hover);--btc-ib-bg-pressed: var(--button-primary-bg-pressed);--btc-ib-fg: var(--button-primary-fg)}.bt-icon-btn--overlay{--btc-ib-bg: var(--btc-white-92);--btc-ib-bg-hover: var(--bt-white);--btc-ib-bg-pressed: var(--bt-sand-100);--btc-ib-fg: var(--text-primary);--btc-icon-active: var(--text-brand);box-shadow:var(--shadow-sm)}.bt-icon-btn--sm{width:var(--control-h-sm);height:var(--control-h-sm)}.bt-icon-btn--sm:before{content:"";position:absolute;inset:var(--btc-hit-inset-sm)}.bt-icon-btn--sm>.bt-icon{width:18px;height:18px}.bt-icon-btn--lg{width:var(--control-h-lg);height:var(--control-h-lg)}.bt-icon-btn--lg>.bt-icon{width:22px;height:22px}.bt-icon-btn[aria-pressed=true]:not(.bt-icon-btn--primary)>.bt-icon{color:var(--btc-icon-active);fill:currentColor}.bt-icon-btn:disabled,.bt-icon-btn[aria-disabled=true]{color:var(--text-disabled);background:transparent;cursor:not-allowed;transform:none}.bt-icon-btn__count{position:absolute;top:var(--space-1);right:3px;min-width:18px;height:18px;padding:0 5px;border-radius:var(--radius-full);background:var(--bt-gold-400);color:var(--bt-navy-900);font-family:var(--font-body);font-size:.6875rem;font-weight:var(--fw-bold);line-height:18px;font-variant-numeric:tabular-nums;text-align:center;box-shadow:0 0 0 2px var(--btc-bubble-ring)}.bt-icon-btn--sm .bt-icon-btn__count{top:1px;right:1px}.bt-badge{--btc-badge-bg: var(--badge-neutral-bg);--btc-badge-fg: var(--badge-neutral-fg);display:inline-flex;align-items:center;gap:5px;max-width:100%;min-height:var(--badge-h);padding:var(--space-0-5) var(--space-2);border-radius:var(--badge-radius);background:var(--btc-badge-bg);color:var(--btc-badge-fg);font-family:var(--font-body);font-size:var(--fs-micro);font-weight:var(--fw-semibold);line-height:1.25;letter-spacing:.01em;vertical-align:middle}.bt-badge>.bt-icon{stroke-width:2.25}.bt-badge__label{min-width:0}.bt-badge--sm{gap:var(--space-1);min-height:var(--space-5);padding:1px var(--space-1-5);font-size:.6875rem}.bt-badge--sale{--btc-badge-bg: var(--badge-sale-bg);--btc-badge-fg: var(--badge-sale-fg)}.bt-badge--new{--btc-badge-bg: var(--badge-new-bg);--btc-badge-fg: var(--badge-new-fg)}.bt-badge--verified{--btc-badge-bg: var(--badge-verified-bg);--btc-badge-fg: var(--badge-verified-fg)}.bt-badge--local{--btc-badge-bg: var(--badge-local-bg);--btc-badge-fg: var(--badge-local-fg)}.bt-badge--low{--btc-badge-bg: var(--badge-low-bg);--btc-badge-fg: var(--badge-low-fg)}.bt-badge--out{--btc-badge-bg: var(--badge-out-bg);--btc-badge-fg: var(--badge-out-fg)}.bt-badge--eco{--btc-badge-bg: var(--badge-eco-bg);--btc-badge-fg: var(--badge-eco-fg)}.bt-badge--danger{--btc-badge-bg: var(--badge-danger-bg);--btc-badge-fg: var(--badge-danger-fg)}.bt-badge--success{--btc-badge-bg: var(--surface-success-subtle);--btc-badge-fg: var(--bt-green-700)}.bt-badge--warning{--btc-badge-bg: var(--surface-warning-subtle);--btc-badge-fg: var(--text-warning)}.bt-badge--info{--btc-badge-bg: var(--surface-info-subtle);--btc-badge-fg: var(--text-info)}.bt-badge--inverse{--btc-badge-bg: var(--btc-white-12);--btc-badge-fg: var(--text-inverse)}.bt-chip{display:inline-flex;align-items:center;flex-shrink:0;min-height:var(--touch-target);padding:0;border:0;background:none;color:var(--btc-fg);text-decoration:none;cursor:pointer}.bt-chip:focus-visible{outline:0}.bt-chip:focus-visible .bt-chip__body{outline:var(--focus-ring-width) solid var(--focus-ring);outline-offset:var(--focus-ring-offset)}.bt-chip__body{display:inline-flex;align-items:center;gap:var(--space-1-5);min-height:var(--chip-h);padding:var(--space-1-5) 14px;border:var(--border-width) solid var(--btc-chip-border);border-radius:var(--chip-radius);background:var(--btc-chip-bg);color:var(--btc-fg);font-family:var(--font-body);font-size:var(--fs-body-sm);font-weight:var(--fw-medium);line-height:1.2;transition:background-color var(--dur-fast) var(--ease-standard),border-color var(--dur-fast) var(--ease-standard)}@media(hover:hover){.bt-chip:hover .bt-chip__body{border-color:var(--btc-chip-border-hover)}}.bt-chip__check{display:none;stroke-width:2.5}.bt-chip__remove{stroke-width:2.5}.bt-chip__count{opacity:.72;font-variant-numeric:tabular-nums}.bt-chip--selected .bt-chip__body,.bt-chip--removable .bt-chip__body,.bt-chip[aria-pressed=true] .bt-chip__body{border-color:var(--chip-selected-bg);background:var(--chip-selected-bg);color:var(--chip-selected-fg)}.bt-chip--selected .bt-chip__check,.bt-chip[aria-pressed=true] .bt-chip__check{display:block}.bt-chip--selected .bt-chip__icon,.bt-chip[aria-pressed=true] .bt-chip__icon{display:none}.bt-chip[aria-pressed=false] .bt-chip__body{border-color:var(--btc-chip-border);background:var(--btc-chip-bg);color:var(--btc-fg)}.bt-chip[aria-pressed=false] .bt-chip__check{display:none}.bt-chip[aria-pressed=false] .bt-chip__icon{display:block}.bt-chip:disabled{cursor:not-allowed}.bt-chip:disabled .bt-chip__body{border-color:var(--border-subtle);background:var(--bt-sand-100);color:var(--text-disabled)}.bt-chip--sm .bt-chip__body{min-height:var(--space-8);padding:var(--space-1) 10px;font-size:var(--fs-caption)}.bt-field{display:flex;flex-direction:column;gap:var(--space-1-5);min-width:0}.bt-field__label{font-size:var(--fs-body-sm);font-weight:var(--fw-semibold);line-height:1.35;color:var(--btc-fg)}.bt-field__required{color:var(--text-danger)}.bt-field__message{display:flex;align-items:flex-start;gap:var(--space-1-5);margin:0;font-size:var(--fs-caption);line-height:1.4;color:var(--btc-fg-muted)}.bt-field__message>.bt-icon{margin-top:1px}.bt-field__message--error{color:var(--text-danger);font-weight:var(--fw-medium)}.bt-input{display:flex;align-items:center;gap:var(--space-2);min-height:var(--input-h);padding:0 var(--space-3);border:var(--border-width) solid var(--input-border);border-radius:var(--input-radius);background:var(--input-bg);transition:border-color var(--dur-fast) var(--ease-standard),box-shadow var(--dur-fast) var(--ease-standard)}.bt-input--lg{min-height:var(--input-h-lg)}.bt-input--multiline{align-items:stretch;padding-block:var(--space-3)}.bt-input:hover{border-color:var(--input-border-hover)}.bt-input:focus-within{border-color:var(--input-border-focus);box-shadow:0 0 0 1px var(--input-border-focus),0 0 0 4px var(--btc-focus-halo)}.bt-input__control{flex:1;min-width:0;min-height:var(--space-10);padding:0;border:0;outline:0;background:transparent;font-family:var(--font-body);font-size:var(--fs-body);color:var(--input-fg)}.bt-input__control::placeholder{color:var(--input-placeholder);opacity:1}.bt-input--multiline .bt-input__control{min-height:var(--space-32);line-height:var(--lh-compact);resize:vertical}.bt-input:has(.bt-input__control:disabled){border-color:var(--input-border);background:var(--input-bg-disabled)}.bt-input__control:disabled{color:var(--text-disabled);cursor:not-allowed}.bt-field--error .bt-input,.bt-input:has([aria-invalid=true]){border-color:var(--input-border-error);box-shadow:0 0 0 1px var(--input-border-error)}.bt-field--error .bt-input:focus-within,.bt-input:has([aria-invalid=true]):focus-within{box-shadow:0 0 0 1px var(--input-border-error),0 0 0 4px var(--btc-error-halo)}.bt-select{position:relative;display:flex;align-items:center}.bt-select__control{width:100%;min-height:var(--input-h);padding:0 var(--space-10) 0 var(--space-3);border:var(--border-width) solid var(--input-border);border-radius:var(--input-radius);outline:0;background:var(--input-bg);font-family:var(--font-body);font-size:var(--fs-body);color:var(--input-fg);text-overflow:ellipsis;cursor:pointer;-webkit-appearance:none;appearance:none;transition:border-color var(--dur-fast) var(--ease-standard),box-shadow var(--dur-fast) var(--ease-standard)}.bt-select__control:hover{border-color:var(--input-border-hover)}.bt-select__control:focus-visible{border-color:var(--input-border-focus);outline:0;box-shadow:0 0 0 1px var(--input-border-focus),0 0 0 4px var(--btc-focus-halo)}.bt-select__control:disabled{border-color:var(--input-border);background:var(--input-bg-disabled);color:var(--text-disabled);cursor:not-allowed}.bt-select__chevron{position:absolute;inset-inline-end:var(--space-3);color:var(--icon-secondary);pointer-events:none}.bt-select--sm .bt-select__control{min-height:var(--control-h-sm);font-size:var(--fs-body-sm)}.bt-select--lg .bt-select__control{min-height:var(--input-h-lg)}.bt-check,.bt-radio{position:relative;display:flex;align-items:flex-start;gap:var(--space-3);min-height:var(--touch-target);padding:10px 0;color:var(--btc-fg);cursor:pointer}.bt-check .bt-check-box,.bt-radio 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