.bk-btn{display:inline-flex;align-items:center;justify-content:center;border-style:solid;border-width:var(--border-width-thin,1px);border-radius:var(--button-primary-default-radius,var(--radius-pill,999px));cursor:pointer;font-family:var(--font-family-body,system-ui,sans-serif);font-weight:var(--font-weight-medium,500);line-height:1;white-space:nowrap;transition:background var(--duration-fast,.12s) var(--easing-standard,ease),box-shadow var(--duration-fast,.12s) var(--easing-standard,ease),transform var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-btn:active:not([disabled]){transform:scale(.97)}.bk-btn:focus-visible{outline:none;box-shadow:var(--focus-ring,0 0 0 3px rgba(0,0,0,.3))}.bk-btn[disabled]{cursor:not-allowed;opacity:.9}.bk-btn__icon{display:inline-flex;flex:none}.bk-btn__label{display:inline-flex;transform:translateY(-.06em)}.bk-btn--sm{height:32px;padding:0 var(--space-16,16px);gap:var(--space-8,8px);font-size:var(--font-size-sm,14px)}.bk-btn--md{height:40px;padding:0 var(--space-20,20px);gap:var(--space-8,8px);font-size:var(--font-size-base,16px)}.bk-btn--lg{height:48px;padding:0 var(--space-24,24px);gap:var(--space-8,8px);font-size:var(--font-size-md,18px);letter-spacing:var(--font-letter-spacing-wide,.4px)}.bk-btn--icon-only{padding:0;border-radius:var(--button-primary-default-radius,var(--radius-pill,999px))}.bk-btn--icon-only.bk-btn--sm{width:32px}.bk-btn--icon-only.bk-btn--md{width:40px}.bk-btn--icon-only.bk-btn--lg{width:48px}.bk-btn--primary{background:var(--button-primary-default-bg);color:var(--button-primary-default-fg);border-color:var(--button-primary-default-border);box-shadow:var(--button-primary-default-shadow,none)}.bk-btn--primary:hover:not([disabled]){background:var(--button-primary-hover-bg,var(--button-primary-default-bg))}.bk-btn--primary:active:not([disabled]){background:var(--button-primary-active-bg,var(--button-primary-default-bg))}.bk-btn--primary[disabled]{background:var(--button-primary-disabled-bg,var(--button-primary-default-bg));color:var(--button-primary-disabled-fg,var(--button-primary-default-fg));border-color:var(--button-primary-disabled-bg,var(--button-primary-default-border))}.bk-btn--secondary{background:var(--button-secondary-default-bg);color:var(--button-secondary-default-fg);border-color:var(--button-secondary-default-border);box-shadow:var(--button-secondary-default-shadow,none)}.bk-btn--secondary:hover:not([disabled]){background:var(--button-secondary-hover-bg,var(--button-secondary-default-bg))}.bk-btn--secondary:active:not([disabled]){background:var(--button-secondary-active-bg,var(--button-secondary-default-bg))}.bk-btn--secondary[disabled]{color:var(--button-secondary-disabled-fg,var(--button-secondary-default-fg))}.bk-btn--tertiary{background:transparent;color:var(--color-text-primary);border-color:transparent}.bk-btn--tertiary:active:not([disabled]),.bk-btn--tertiary:hover:not([disabled]){background:var(--color-bg-hover,var(--color-bg-surface))}.bk-btn--tertiary[disabled]{color:var(--color-text-disabled,var(--color-text-muted))}.bk-btn--destructive{background:var(--color-status-danger-fg,#dc2626);color:var(--color-status-danger-on,#fff);border-color:var(--color-border-danger,var(--color-status-danger-fg,#dc2626))}.bk-btn--destructive:hover:not([disabled]){background:var(--color-status-danger-solid,var(--color-status-danger-fg,#dc2626))}.bk-btn--destructive[disabled]{background:var(--color-status-danger-disabled,var(--color-status-danger-solid,#dc2626));border-color:transparent}.bk-card{display:flex;flex-direction:column;gap:var(--card-gap);background:var(--card-bg);border:var(--border-width-thin,1px) solid var(--card-border);border-radius:var(--card-radius);padding:var(--card-padding);box-shadow:var(--card-shadow,none);font-family:var(--font-family-body,system-ui,sans-serif)}.bk-card,.bk-card__title{color:var(--color-text-primary)}.bk-card__title{margin:0;font-family:var(--font-family-display,var(--font-family-body,system-ui,serif));letter-spacing:var(--font-letter-spacing-display,-.02em);font-size:var(--font-size-xl,24px)}.bk-card__body{margin:0;font-size:var(--font-size-base,16px);color:var(--color-text-secondary);line-height:var(--font-line-height-base,24px)}.bk-shimmer{position:relative;overflow:hidden;display:block;width:100%;background:var(--color-bg-surface,#1a1a1a)}.bk-shimmer--rounded{border-radius:var(--radius-8,8px)}.bk-shimmer:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,var(--color-bg-hover,rgba(255,255,255,.06)),transparent);animation:bk-shimmer-sweep 1.4s ease-in-out infinite}@media (prefers-reduced-motion:reduce){.bk-shimmer:after{animation:none;opacity:.5;transform:none}}@keyframes bk-shimmer-sweep{0%{transform:translateX(-100%)}to{transform:translateX(100%)}}.bk-input,.bk-input-group,.bk-select__toggle,.bk-textarea{box-sizing:border-box;min-width:0;margin:0;background:transparent;color:var(--color-text-primary);border:0;border-bottom:var(--border-width-thin,1px) solid var(--color-text-primary);border-radius:0;box-shadow:none;outline:none;font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--field-text,var(--font-size-sm,14px));font-weight:var(--font-weight-regular,400);padding-inline:var(--field-pad-x,0);transition:box-shadow var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-input,.bk-input-group,.bk-select__toggle{height:var(--field-h,36px)}.bk-input,.bk-textarea{display:block;width:100%}.bk-input{line-height:var(--leading-snug,1.4)}.bk-textarea{min-height:80px;resize:vertical;padding-block:var(--space-8,8px);line-height:var(--leading-body,1.5)}.bk-input-group{display:inline-flex;align-items:center;gap:var(--space-4,4px)}.bk-input-group input{flex:1 1 auto;min-width:0;width:100%;height:100%;padding:0;border:0;border-radius:0;background:transparent;color:inherit;font:inherit;outline:none}.bk-input-group input::placeholder,.bk-input::placeholder,.bk-textarea::placeholder{color:var(--color-text-muted,var(--color-text-secondary));opacity:1}.bk-input-group:focus-within,.bk-input:focus-visible,.bk-select.is-open .bk-select__toggle,.bk-select__toggle:focus-visible,.bk-textarea:focus-visible{outline:2px solid transparent;outline-offset:2px;border-bottom-color:var(--color-focus-ring,var(--color-text-primary));box-shadow:inset 0 -1px 0 var(--color-focus-ring,var(--color-text-primary))}[data-brand-surface] :is(.bk-input,.bk-textarea,.bk-select__toggle,.bk-input-group):not(.bk-input--inline){border:var(--field-border-w,1px) solid var(--color-border-default);border-radius:var(--radius-control,0);padding-inline:max(var(--field-pad-x,0px),var(--space-12,12px));padding-block:var(--field-pad-y,0);height:auto;min-height:var(--field-h,36px)}[data-brand-surface] .bk-select__chevron{-webkit-mask-image:var(--field-chevron,url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>"));mask-image:var(--field-chevron,url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>"))}[data-brand-surface] :is(.bk-input:focus-visible,.bk-textarea:focus-visible,.bk-select__toggle:focus-visible,.bk-select.is-open .bk-select__toggle,.bk-input-group:focus-within):not(.bk-input--inline){border-color:var(--color-focus-ring,var(--color-text-primary));box-shadow:0 0 0 1px var(--color-focus-ring,var(--color-text-primary))}.bk-input-group.is-disabled,.bk-input:disabled,.bk-select__toggle:disabled,.bk-textarea:disabled{opacity:.5;cursor:not-allowed}.bk-input.bk-input--invalid,.bk-textarea.bk-textarea--invalid{border-bottom-color:var(--color-status-danger-fg,#dc2626);box-shadow:inset 0 -1px 0 var(--color-status-danger-fg,#dc2626)}select.bk-input{-moz-appearance:none;appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:calc(var(--field-pad-x, 0px) + var(--space-20, 20px));background-image:linear-gradient(45deg,transparent 50%,currentColor 0),linear-gradient(135deg,currentColor 50%,transparent 0);background-position:calc(100% - var(--field-pad-x, 0px) - 9px) 50%,calc(100% - var(--field-pad-x, 0px) - 5px) 50%;background-size:4px 4px;background-repeat:no-repeat}select.bk-input option{background:var(--color-bg-raised,#fff);color:var(--color-text-primary)}.bk-input--inline{height:auto;width:100%;font:inherit;line-height:inherit;padding:0}.bk-input[type=search]::-webkit-search-cancel-button,.bk-input[type=search]::-webkit-search-decoration{-webkit-appearance:none}@media (pointer:coarse){.bk-input,.bk-input-group,.bk-textarea{font-size:max(var(--field-text,var(--font-size-sm,14px)),var(--font-size-base,16px))}}.bk-badge{gap:var(--space-6,6px);height:24px;padding:0 var(--space-10,10px);border-radius:var(--radius-pill,999px);font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-2xs,11px);font-weight:var(--font-weight-medium,500);line-height:1;white-space:nowrap}.bk-badge,.bk-badge__icon{display:inline-flex;align-items:center}.bk-badge__icon{flex:none}.bk-badge__icon svg{display:block}.bk-badge__label{display:inline-flex;align-items:center}.bk-badge .bk-nav-item__dot{margin:0}.bk-badge--neutral{background:var(--color-brand-default);color:var(--color-text-on-brand,var(--color-text-inverse))}.bk-badge--accent{background:var(--color-brand-subtle,var(--color-bg-surface));color:var(--color-brand-default)}.bk-badge--success{background:var(--color-status-success-solid,#059669);color:var(--color-status-success-on,#d1fae5)}.bk-badge--warning{background:var(--color-status-warning-solid,#fbbf24);color:var(--color-status-warning-on,#78350f)}.bk-badge--danger{background:var(--color-status-danger-solid,#e11d37);color:var(--color-status-danger-on,#fff)}.bk-checkbox,.bk-toggle{display:inline-flex;align-items:center;gap:var(--space-8,8px);cursor:pointer;font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-base,16px);color:var(--color-text-primary)}.bk-checkbox.is-disabled,.bk-toggle.is-disabled{opacity:.6;cursor:not-allowed}.bk-checkbox__input,.bk-toggle__input{position:absolute;opacity:0;width:0;height:0}.bk-toggle__track{position:relative;--tg-w:44px;--tg-h:24px;--tg-inset:2px;width:var(--tg-w);height:var(--tg-h);flex:none;border-radius:var(--radius-pill,999px);background:var(--color-border-default);transition:background var(--duration-fast,.12s) var(--easing-standard,ease),transform var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-toggle__input:active:not(:disabled)+.bk-toggle__track{transform:scale(.95)}.bk-toggle__thumb{position:absolute;--tg-r:calc(var(--tg-h) / 2 - var(--tg-inset));top:0;bottom:0;left:0;width:var(--tg-h);border-radius:var(--radius-pill,999px);background:radial-gradient(circle at 50% 50%,var(--color-bg-raised,#fff) calc(var(--tg-r) - .5px),transparent calc(var(--tg-r) + .5px));filter:drop-shadow(0 0 1px rgba(0,0,0,.18));transition:left var(--duration-fast,.12s) var(--easing-emphasized,ease)}.bk-toggle__input:checked+.bk-toggle__track{background:var(--color-neutral-default,var(--color-brand-default))}.bk-toggle__input:checked+.bk-toggle__track .bk-toggle__thumb{left:calc(var(--tg-w) - var(--tg-h))}.bk-toggle--sm .bk-toggle__track{--tg-w:28px;--tg-h:16px}.bk-toggle__input:focus-visible+.bk-toggle__track{box-shadow:var(--focus-ring,0 0 0 3px rgba(0,0,0,.25))}.bk-checkbox__box{position:relative;width:18px;height:18px;flex:none;border-radius:var(--radius-4,4px);border:var(--border-width-thin,1px) solid var(--color-border-strong,var(--color-border-default));background:var(--color-bg-raised,#fff);transition:background var(--duration-fast,.12s) var(--easing-standard,ease),border-color var(--duration-fast,.12s) var(--easing-standard,ease),transform var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-checkbox__input:active:not(:disabled)+.bk-checkbox__box{transform:scale(.9)}.bk-checkbox__box:after{content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;border-width:medium;border-left:0 solid var(--color-text-on-brand,#fff);border-bottom:2px solid var(--color-text-on-brand,#fff);border-right:2px solid var(--color-text-on-brand,#fff);border-top:0 solid var(--color-text-on-brand,#fff);transform:rotate(45deg) scale(0);transition:transform var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-checkbox__input:checked+.bk-checkbox__box{background:var(--color-brand-default);border-color:var(--color-brand-default)}.bk-checkbox__input:checked+.bk-checkbox__box:after{transform:rotate(45deg) scale(1)}.bk-checkbox__input:focus-visible+.bk-checkbox__box{box-shadow:var(--focus-ring,0 0 0 3px rgba(0,0,0,.25))}.bk-chip{display:inline-flex;align-items:center;gap:var(--space-4,4px);height:32px;padding:0 var(--space-12,12px);border-radius:var(--radius-10,10px);border:var(--border-width-thin,1px) solid var(--color-border-secondary);background:var(--color-bg-surface,#fff);color:var(--color-text-secondary);font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-sm,14px);font-weight:var(--font-weight-regular,400);letter-spacing:var(--font-letter-spacing-wide,.4px);cursor:pointer;transition:background var(--duration-fast,.12s) var(--easing-standard,ease),border-color var(--duration-fast,.12s) var(--easing-standard,ease),color var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-chip:hover:not(:disabled){background:var(--color-bg-surface)}.bk-chip.is-active{background:var(--color-brand-subtle,var(--color-bg-surface));border-color:var(--color-brand-default);color:var(--color-brand-default)}.bk-chip:disabled{opacity:.6;cursor:not-allowed}.bk-chip__icon{flex:none}.bk-avatar,.bk-chip__icon,.bk-chip__label{display:inline-flex}.bk-avatar{align-items:center;justify-content:center;flex:none;overflow:hidden;-webkit-user-select:none;-moz-user-select:none;user-select:none;border-radius:var(--radius-pill,999px);background:var(--color-avatar-bg,var(--color-bg-surface));color:var(--color-avatar-fg,var(--color-text-secondary));font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-xs,12px);font-weight:var(--font-weight-semibold,600)}.bk-avatar__img{width:100%;height:100%;object-fit:cover}.bk-tabs{display:inline-flex;gap:var(--space-16,16px);box-shadow:inset 0 calc(var(--border-width-thin, 1px) * -1) 0 var(--color-border-tertiary)}.bk-tab__indicator{position:absolute;left:0;right:0;bottom:0;height:var(--border-width-thin,1px);background:var(--color-brand-default)}.bk-tab{position:relative;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:0;display:inline-flex;align-items:center;gap:var(--space-8,8px);padding:var(--space-8,8px) 0;color:var(--color-text-secondary);font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-base,16px);font-weight:var(--font-weight-medium,500);cursor:pointer;transition:color var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-tab.is-active,.bk-tab:hover:not(:disabled){color:var(--color-text-primary)}.bk-tab.is-active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:var(--border-width-thin,1px);background:var(--color-brand-default)}.bk-tabs--animated .bk-tab.is-active:after{content:none}.bk-tab__icon{display:inline-flex;flex:none}.bk-tab:disabled{opacity:.5;cursor:not-allowed}.bk-segmented{display:inline-flex;gap:var(--space-4,4px);padding:var(--space-4,4px);background:var(--color-bg-surface);border-radius:var(--radius-pill,999px)}.bk-segment{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:none;padding:var(--space-4,4px) var(--space-16,16px);border-radius:var(--radius-pill,999px);color:var(--color-text-secondary);font-family:var(--font-family-body,system-ui,sans-serif);font-size:var(--font-size-base,16px);font-weight:var(--font-weight-medium,500);cursor:pointer;transition:background var(--duration-fast,.12s) var(--easing-standard,ease),color var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-segment:hover:not(:disabled):not(.is-selected){color:var(--color-text-primary)}.bk-segment.is-selected{background:var(--color-text-primary);color:var(--color-bg-raised,#fff)}.bk-segment--animated.is-selected{background:none}.bk-segment__pill{position:absolute;inset:0;z-index:0;background:var(--color-text-primary);border-radius:inherit}.bk-segment--animated{position:relative}.bk-segment__label{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-4,4px)}.bk-segment--animated.is-selected .bk-segment__label{color:var(--color-bg-raised,#fff)}.bk-segment:disabled{opacity:.5;cursor:not-allowed}.bk-segmented--sm{gap:0;padding:0;border:var(--border-width-thin,1px) solid var(--color-border-default);border-radius:var(--radius-8,8px);background:transparent;overflow:hidden}.bk-segmented--sm .bk-segment{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-4,4px);flex:1 1;min-width:30px;height:30px;padding:0 var(--space-8,8px);border-radius:0;font-size:var(--font-size-xs,12px)}.bk-segmented--sm>*+*{border-left:var(--border-width-thin,1px) solid var(--color-border-default)}.bk-segmented--sm>*{flex:1 1}.bk-segmented--sm>.bk-tooltip{align-items:center}.bk-segmented--sm .bk-segment.is-selected{background:var(--color-text-primary);color:var(--color-bg-raised,#fff)}.bk-select{position:relative;font-family:var(--font-family-body,system-ui,sans-serif)}.bk-select,.bk-select__toggle{display:inline-flex;width:100%}.bk-select__toggle{align-items:center;justify-content:space-between;gap:var(--space-8,8px);padding-block:0;cursor:pointer;text-align:left}.bk-select__icon{display:inline-flex;flex:none}.bk-select__label{flex:1 1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bk-select__chevron{width:16px;height:16px;flex:none;background-color:currentColor;-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 256 256'><path d='m213.66 101.66l-80 80a8 8 0 0 1-11.32 0l-80-80a8 8 0 0 1 11.32-11.32L128 164.69l74.34-74.35a8 8 0 0 1 11.32 11.32'/></svg>") center /16px no-repeat;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 256 256'><path d='m213.66 101.66l-80 80a8 8 0 0 1-11.32 0l-80-80a8 8 0 0 1 11.32-11.32L128 164.69l74.34-74.35a8 8 0 0 1 11.32 11.32'/></svg>") center /16px no-repeat}.bk-select__menu{position:absolute;top:100%;left:0;min-width:100%;max-height:360px;overflow-y:auto;display:flex;flex-direction:column;padding:0;background:var(--color-bg-raised,#fff);border:var(--border-width-thin,1px) solid var(--color-border-default);border-radius:0;box-shadow:0 6px 18px rgba(0,0,0,.1);z-index:50}.bk-select__menu--portaled{position:fixed;top:auto;left:auto;min-width:0;z-index:9600}.bk-select__group{padding:var(--space-8,8px) var(--space-12,12px) var(--space-4,4px);color:var(--color-text-secondary);border-bottom:var(--border-width-thin,1px) solid var(--color-border-secondary)}.bk-select__option{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-bottom:var(--border-width-thin,1px) solid var(--color-border-secondary);background:none;display:flex;align-items:center;justify-content:space-between;gap:var(--space-8,8px);text-align:left;padding:var(--space-10,10px) var(--space-12,12px);border-radius:0;color:var(--color-text-secondary);font:inherit;font-size:var(--font-size-sm,14px);cursor:pointer;white-space:nowrap;transition:background var(--duration-fast,.12s) var(--easing-standard,ease),color var(--duration-fast,.12s) var(--easing-standard,ease)}.bk-select__option:last-child{border-bottom:0}.bk-select__option:hover{background:var(--color-bg-hover,var(--color-bg-surface));color:var(--color-text-primary)}.bk-select__option.is-current{color:var(--color-text-primary);font-weight:var(--font-weight-medium,500)}.bk-select__option.is-current:after{content:"";flex:none;width:5px;height:9px;margin-right:2px;border:solid var(--color-text-primary);border-width:0 1.5px 1.5px 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