:root{--bt-color-primary: #000000;--bt-color-primary-hover: #333333;--bt-color-background: #ffffff;--bt-color-background-secondary: #fafafa;--bt-color-background-neutral: #F3F3F3;--bt-color-background-muted: #f0f0f0;--bt-color-text-primary: #1a1a1a;--bt-color-text-secondary: #666666;--bt-color-text-tertiary: #999999;--bt-text-inverse: #ffffff;--bt-text-disabled: #9ca3af;--bt-color-border: #e5e5e5;--bt-color-border-light: rgba(0, 0, 0, 0.08);--bt-color-success: #10b981;--bt-color-error: #ef4444;--bt-color-warning: #f59e0b;--bt-color-info: #3b82f6;--bt-color-overlay: rgba(0, 0, 0, 0.5);--bt-spacing-xs: 0.25rem;--bt-spacing-sm: 0.5rem;--bt-spacing-md: 0.75rem;--bt-spacing-lg: 1rem;--bt-spacing-xl: 1.25rem;--bt-spacing-2xl: 1.5rem;--bt-spacing-3xl: 1.75rem;--bt-font-family: Pretendard, sans-serif;--bt-font-size-xs: 0.75rem;--bt-font-size-sm: 0.875rem;--bt-font-size-base: 0.9375rem;--bt-font-size-md: 1rem;--bt-font-size-lg: 1.125rem;--bt-font-size-xl: 1.25rem;--bt-font-weight-regular: 400;--bt-font-weight-medium: 500;--bt-font-weight-semibold: 600;--bt-font-weight-bold: 700;--bt-line-height-normal: 1.5;--bt-radius-sm: 6px;--bt-radius-md: 8px;--bt-radius-lg: 12px;--bt-radius-full: 9999px;--bt-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);--bt-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);--bt-shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.06);--bt-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);--bt-transition-fast: 0.1s ease-in-out;--bt-transition-base: 0.2s ease-in-out;--bt-transition-slow: 0.3s ease-in-out;--bt-z-modal: 10000;--bt-z-toast: 10001}.bt-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--bt-spacing-sm);border-radius:var(--bt-radius-md);border:none;cursor:pointer;font-family:var(--bt-font-family);font-weight:var(--bt-font-weight-medium);transition:background var(--bt-transition-base),color var(--bt-transition-base),box-shadow var(--bt-transition-base),transform var(--bt-transition-base)}.bt-button:disabled{cursor:not-allowed;opacity:.6}.bt-button--sm{padding:var(--bt-spacing-sm) var(--bt-spacing-lg);font-size:var(--bt-font-size-sm)}.bt-button--md{padding:var(--bt-spacing-md) var(--bt-spacing-xl);font-size:var(--bt-font-size-base)}.bt-button--lg{padding:var(--bt-spacing-lg) var(--bt-spacing-2xl);font-size:var(--bt-font-size-md)}.bt-button--primary{background:var(--bt-color-primary);color:var(--bt-color-background)}.bt-button--primary:hover:not(:disabled){background:var(--bt-color-primary-hover)}.bt-button--primary:active:not(:disabled){transform:scale(0.98)}.bt-button--secondary{background:rgba(0,0,0,0);border:1px solid var(--bt-color-border);color:var(--bt-color-text-primary)}.bt-button--secondary:hover:not(:disabled){background:var(--bt-color-background-secondary)}.bt-button--secondary:active:not(:disabled){transform:scale(0.98)}.bt-button--ghost{background:rgba(0,0,0,0);color:var(--bt-color-text-primary)}.bt-button--ghost:hover:not(:disabled){background:rgba(0,0,0,.05)}.bt-button--ghost:active:not(:disabled){transform:scale(0.96)}.bt-button--danger{background:var(--bt-color-error);color:var(--bt-color-background)}.bt-button--danger:hover:not(:disabled){background:rgb(235.7842364532, 30.4157635468, 30.4157635468)}.bt-button--danger:active:not(:disabled){transform:scale(0.98)}.bt-button--full-width{width:100%}.bt-text-field{display:flex;flex-direction:column}.bt-text-field--full-width{width:100%}.bt-text-field__label{margin-bottom:var(--bt-spacing-xs);color:var(--bt-color-text-primary);font-size:var(--bt-font-size-sm);font-weight:var(--bt-font-weight-medium);line-height:var(--bt-line-height-normal)}.bt-text-field__wrap{position:relative;display:inline-flex;width:100%;align-items:center}.bt-text-field__input{width:100%;border-radius:var(--bt-radius-md);font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);line-height:var(--bt-line-height-normal);color:var(--bt-color-text-primary);background:var(--bt-color-background);transition:border-color var(--bt-transition-base),box-shadow var(--bt-transition-base),background var(--bt-transition-base)}.bt-text-field__input::placeholder{color:var(--bt-color-text-tertiary)}.bt-text-field__input:disabled{cursor:not-allowed;background:var(--bt-color-background-secondary);color:var(--bt-color-text-tertiary);opacity:.7}.bt-text-field__input--outline{border:1px solid var(--bt-color-border)}.bt-text-field__input--outline:hover:not(:disabled){border-color:var(--bt-color-border-light)}.bt-text-field__input--outline:focus-visible{outline:none;border-color:var(--bt-color-primary);box-shadow:0 0 0 3px rgba(0,0,0,.15)}.bt-text-field__input--filled{background:var(--bt-color-background-secondary);border:1px solid rgba(0,0,0,0)}.bt-text-field__input--filled:focus-visible{outline:none;border-color:var(--bt-color-primary);background:var(--bt-color-background);box-shadow:0 0 0 3px rgba(0,0,0,.15)}.bt-text-field__input--sm{padding:var(--bt-spacing-sm) var(--bt-spacing-lg);font-size:var(--bt-font-size-sm)}.bt-text-field__input--md{padding:var(--bt-spacing-md) var(--bt-spacing-xl);font-size:var(--bt-font-size-base)}.bt-text-field__input--lg{padding:var(--bt-spacing-lg) var(--bt-spacing-2xl);font-size:var(--bt-font-size-md)}.bt-text-field__input--error{border-color:var(--bt-color-error) !important;box-shadow:0 0 0 3px rgba(239,68,68,.15) !important}.bt-text-field__input--success{border-color:var(--bt-color-success) !important;box-shadow:0 0 0 3px rgba(16,185,129,.15) !important}.bt-text-field__helper{margin-top:var(--bt-spacing-xs);font-size:var(--bt-font-size-sm);color:var(--bt-color-text-secondary)}.bt-text-field__helper--error{color:var(--bt-color-error)}.bt-text-field__helper--success{color:var(--bt-color-success)}.bt-text-field__icon{position:absolute;display:inline-flex;align-items:center;justify-content:center;width:1.25rem;height:1.25rem;color:var(--bt-color-text-secondary)}.bt-text-field__icon--left{left:var(--bt-spacing-md)}.bt-text-field__icon--right{right:var(--bt-spacing-md)}.bt-checkbox{display:inline-flex;align-items:center;gap:var(--bt-spacing-sm);cursor:pointer;user-select:none;position:relative}.bt-checkbox__input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}.bt-checkbox__box{width:1.125rem;height:1.125rem;box-sizing:border-box;border:1px solid var(--bt-color-border);border-radius:var(--bt-radius-sm);background:var(--bt-color-background);transition:background var(--bt-transition-base),border-color var(--bt-transition-base),box-shadow var(--bt-transition-base);display:inline-block;position:relative}.bt-checkbox__label{font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);line-height:var(--bt-line-height-normal);color:var(--bt-color-text-primary)}.bt-checkbox--sm .bt-checkbox__box{width:1rem;height:1rem}.bt-checkbox--sm .bt-checkbox__label{font-size:var(--bt-font-size-sm)}.bt-checkbox--lg .bt-checkbox__box{width:1.25rem;height:1.25rem}.bt-checkbox--lg .bt-checkbox__label{font-size:var(--bt-font-size-md)}.bt-checkbox__input:focus-visible+.bt-checkbox__box{box-shadow:0 0 0 3px var(--bt-color-border-light);border-color:var(--bt-color-primary)}.bt-checkbox__input:disabled+.bt-checkbox__box,.bt-checkbox__input:disabled~.bt-checkbox__label{opacity:.6;cursor:not-allowed}.bt-checkbox__input:checked+.bt-checkbox__box{background:var(--bt-color-primary);border-color:var(--bt-color-primary)}.bt-checkbox__input:checked+.bt-checkbox__box::after{content:"";position:absolute;left:50%;top:50%;width:.28rem;height:.55rem;border:2px solid var(--bt-color-background);border-top:0;border-left:0;transform:translate(-50%, -58%) rotate(45deg)}.bt-radio{position:relative;display:inline-flex;align-items:center;gap:var(--bt-spacing-sm);cursor:pointer;user-select:none}.bt-radio__input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0}.bt-radio__dot{width:1.125rem;height:1.125rem;box-sizing:border-box;border:1px solid var(--bt-color-border);border-radius:var(--bt-radius-full);background:var(--bt-color-background);transition:background var(--bt-transition-base),border-color var(--bt-transition-base),box-shadow var(--bt-transition-base);position:relative;display:inline-block}.bt-radio__label{font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);line-height:var(--bt-line-height-normal);color:var(--bt-color-text-primary)}.bt-radio--sm .bt-radio__dot{width:1rem;height:1rem}.bt-radio--sm .bt-radio__label{font-size:var(--bt-font-size-sm)}.bt-radio--lg .bt-radio__dot{width:1.25rem;height:1.25rem}.bt-radio--lg .bt-radio__label{font-size:var(--bt-font-size-md)}.bt-radio__input:focus-visible+.bt-radio__dot{box-shadow:0 0 0 3px var(--bt-color-border-light);border-color:var(--bt-color-primary)}.bt-radio__input:checked+.bt-radio__dot{border-color:var(--bt-color-primary)}.bt-radio__input:checked+.bt-radio__dot::after{content:"";position:absolute;left:50%;top:50%;width:60%;height:60%;transform:translate(-50%, -50%);background:var(--bt-color-primary);border-radius:9999px}.bt-radio__input:disabled+.bt-radio__dot,.bt-radio__input:disabled~.bt-radio__label{opacity:.6;cursor:not-allowed}.bt-switch{position:relative;display:inline-flex;align-items:center;width:40px;height:22px;padding:2px;border-radius:var(--bt-radius-full);background:var(--bt-color-border);transition:background var(--bt-transition-base);cursor:pointer;border:none}.bt-switch__thumb{width:18px;height:18px;background:var(--bt-color-background);border-radius:var(--bt-radius-full);transition:transform var(--bt-transition-base);transform:translateX(0)}.bt-switch--on{background:var(--bt-color-primary)}.bt-switch--on .bt-switch__thumb{transform:translateX(18px)}.bt-switch--sm{width:34px;height:18px}.bt-switch--sm .bt-switch__thumb{width:14px;height:14px}.bt-switch--sm.bt-switch--on .bt-switch__thumb{transform:translateX(16px)}.bt-switch--lg{width:48px;height:26px}.bt-switch--lg .bt-switch__thumb{width:22px;height:22px}.bt-switch--lg.bt-switch--on .bt-switch__thumb{transform:translateX(22px)}.bt-switch--disabled{opacity:.6;cursor:not-allowed}.bt-select{position:relative;display:inline-flex;flex-direction:column;width:100%;gap:var(--bt-spacing-xs);font-family:var(--bt-font-family)}.bt-select__label{font-size:var(--bt-font-size-sm);font-weight:var(--bt-font-weight-medium);line-height:var(--bt-line-height-normal);color:var(--bt-color-text-primary)}.bt-select__control{width:100%;display:inline-flex;align-items:center;justify-content:space-between;gap:var(--bt-spacing-sm);cursor:pointer;color:var(--bt-color-text-primary);background:var(--bt-color-background);border-radius:var(--bt-radius-md);transition:border-color var(--bt-transition-base),box-shadow var(--bt-transition-base),background var(--bt-transition-base);font-size:var(--bt-font-size-base);line-height:var(--bt-line-height-normal);border:none;text-align:left}.bt-select__control:disabled,.bt-select__control.is-disabled{cursor:not-allowed;opacity:.7;background:var(--bt-color-background-secondary);color:var(--bt-color-text-tertiary)}.bt-select__control--outline{border:1px solid var(--bt-color-border)}.bt-select__control--outline:hover:not(.is-disabled){border-color:var(--bt-color-border-light)}.bt-select__control--outline.is-open{border-color:var(--bt-color-primary);box-shadow:0 0 0 3px rgba(0,0,0,.15)}.bt-select__control--filled{background:var(--bt-color-background-secondary);border:1px solid rgba(0,0,0,0)}.bt-select__control--filled.is-open{background:var(--bt-color-background);border-color:var(--bt-color-primary);box-shadow:0 0 0 3px rgba(0,0,0,.15)}.bt-select__control--sm{padding:var(--bt-spacing-sm) var(--bt-spacing-lg);font-size:var(--bt-font-size-sm)}.bt-select__control--md{padding:var(--bt-spacing-md) var(--bt-spacing-xl);font-size:var(--bt-font-size-base)}.bt-select__control--lg{padding:var(--bt-spacing-lg) var(--bt-spacing-2xl);font-size:var(--bt-font-size-md)}.bt-select__value{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bt-select__placeholder{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--bt-color-text-tertiary)}.bt-select__icon{display:inline-flex;align-items:center;justify-content:center;color:var(--bt-color-text-secondary);transition:transform var(--bt-transition-base)}.bt-select__icon.is-open{transform:rotate(180deg)}.bt-select__list{position:absolute;z-index:var(--bt-z-modal);top:100%;left:0;width:100%;min-width:100%;box-sizing:border-box;margin-top:var(--bt-spacing-xs);background:var(--bt-color-background);border:1px solid var(--bt-color-border);border-radius:var(--bt-radius-md);box-shadow:var(--bt-shadow-md);max-height:18rem;overflow-y:auto;overflow-x:hidden;padding:var(--bt-spacing-xs) 0;list-style:none;margin:var(--bt-spacing-xs) 0 0 0}.bt-select__list--up{top:auto;bottom:100%;margin-top:0;margin-bottom:var(--bt-spacing-xs)}.bt-select__option{width:100%;box-sizing:border-box;display:flex;align-items:center;justify-content:space-between;gap:var(--bt-spacing-sm);padding:var(--bt-spacing-sm) var(--bt-spacing-lg);cursor:pointer;color:var(--bt-color-text-primary);background:rgba(0,0,0,0);font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);line-height:var(--bt-line-height-normal)}.bt-select__option:hover,.bt-select__option.is-active{background:var(--bt-color-background-secondary)}.bt-select__option.is-selected{font-weight:var(--bt-font-weight-medium)}.bt-select__option.is-disabled{cursor:not-allowed;color:var(--bt-color-text-tertiary)}.bt-modal{position:fixed;inset:0;display:none;place-items:center;background:var(--bt-color-overlay);z-index:var(--bt-z-modal)}.bt-modal.is-open{display:grid}.bt-modal__panel{background:var(--bt-color-background);border-radius:var(--bt-radius-lg);box-shadow:var(--bt-shadow-lg);max-width:calc(100% - 32px);overflow:hidden}.bt-modal__header{padding:var(--bt-spacing-lg);border-bottom:1px solid var(--bt-color-border);color:var(--bt-color-text-primary);font-size:var(--bt-font-size-xl);font-weight:var(--bt-font-weight-semibold);line-height:1.3}.bt-modal__body{padding:var(--bt-spacing-lg)}.bt-modal__footer{padding:var(--bt-spacing-lg);border-top:1px solid var(--bt-color-border);display:flex;justify-content:flex-end;gap:var(--bt-spacing-sm)}@keyframes bt-alert-fade-in{from{opacity:0}to{opacity:1}}@keyframes bt-alert-slide-up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.bt-alert__overlay{position:fixed;inset:0;background:var(--bt-color-overlay);display:none;align-items:center;justify-content:center;z-index:var(--bt-z-modal);animation:bt-alert-fade-in var(--bt-transition-base)}.bt-alert__overlay.is-open{display:flex}.bt-alert__modal{background:var(--bt-color-background);border-radius:var(--bt-radius-lg);min-width:320px;max-width:480px;box-shadow:var(--bt-shadow-xl);animation:bt-alert-slide-up var(--bt-transition-slow);overflow:hidden}.bt-alert__title{font-size:var(--bt-font-size-lg);font-weight:var(--bt-font-weight-semibold);line-height:var(--bt-line-height-normal);color:var(--bt-color-info);padding:var(--bt-spacing-md) var(--bt-spacing-xl) var(--bt-spacing-xs)}.bt-alert__message{font-size:var(--bt-font-size-base);color:var(--bt-color-text-secondary);padding:var(--bt-spacing-xl);line-height:1.75}.bt-alert__actions{display:flex;gap:var(--bt-spacing-sm);align-items:center;padding:0 var(--bt-spacing-xl) var(--bt-spacing-xl);justify-content:flex-end}.bt-alert--info .bt-alert__title{color:var(--bt-color-info)}.bt-alert--success .bt-alert__title{color:var(--bt-color-success)}.bt-alert--warning .bt-alert__title{color:var(--bt-color-warning)}.bt-alert--error .bt-alert__title{color:var(--bt-color-error)}.bt-card{background:var(--bt-color-background);border-radius:var(--bt-radius-lg)}.bt-card--bordered{border:1px solid var(--bt-color-border)}.bt-card--shadow-sm{box-shadow:var(--bt-shadow-sm)}.bt-card--shadow-md{box-shadow:var(--bt-shadow-md)}.bt-card--shadow-lg{box-shadow:var(--bt-shadow-lg)}.bt-card--p-sm{padding:var(--bt-spacing-sm)}.bt-card--p-md{padding:var(--bt-spacing-lg)}.bt-card--p-lg{padding:var(--bt-spacing-2xl)}.bt-card__title{font-size:var(--bt-font-size-xl);font-weight:var(--bt-font-weight-semibold);line-height:1.3;margin-bottom:var(--bt-spacing-md);color:var(--bt-color-text-primary)}@keyframes bt-spinner-spin{to{transform:rotate(360deg)}}.bt-spinner{display:inline-block;box-sizing:border-box;border-radius:50%;border:2px solid var(--bt-color-border);border-top-color:var(--bt-color-primary);animation:bt-spinner-spin .8s linear infinite}.bt-spinner--sm{width:16px;height:16px}.bt-spinner--md{width:24px;height:24px}.bt-spinner--lg{width:32px;height:32px}.bt-spinner--xl{width:48px;height:48px}.bt-pagination{display:flex;align-items:center;justify-content:center;gap:var(--bt-spacing-sm);margin-top:var(--bt-spacing-3xl)}.bt-pagination__item{border:1px solid var(--bt-color-border);background:var(--bt-color-background);border-radius:var(--bt-radius-md);padding:6px 10px;min-width:36px;font-family:var(--bt-font-family);font-size:var(--bt-font-size-sm);color:var(--bt-color-text-primary);cursor:pointer;transition:background var(--bt-transition-base),border-color var(--bt-transition-base)}.bt-pagination__item:hover:not(:disabled){background:var(--bt-color-background-secondary)}.bt-pagination__item:disabled{opacity:.5;cursor:not-allowed}.bt-pagination__pages{display:flex;align-items:center;gap:6px}.bt-pagination__page{border:0;background:rgba(0,0,0,0);min-width:36px;height:36px;border-radius:var(--bt-radius-md);font-family:var(--bt-font-family);font-size:var(--bt-font-size-sm);color:var(--bt-color-text-secondary);cursor:pointer;transition:background var(--bt-transition-base),color var(--bt-transition-base)}.bt-pagination__page:hover{background:var(--bt-color-background-secondary);color:var(--bt-color-text-primary)}.bt-pagination__page--active{color:var(--bt-color-text-primary);font-weight:var(--bt-font-weight-semibold)}.bt-pagination__ellipsis{min-width:20px;text-align:center;font-size:var(--bt-font-size-sm);color:var(--bt-color-text-tertiary)}.bt-date-picker{display:flex;flex-direction:column;gap:var(--bt-spacing-xs)}.bt-date-picker__label{color:var(--bt-color-text-primary);margin-bottom:var(--bt-spacing-xs);font-weight:var(--bt-font-weight-medium);font-size:var(--bt-font-size-sm);line-height:var(--bt-line-height-normal)}.bt-date-picker__label-required{margin-left:var(--bt-spacing-xs);color:var(--bt-color-error)}.bt-date-picker__fields{display:flex;gap:var(--bt-spacing-sm)}.bt-date-picker__select{min-width:88px;height:44px;padding:0 var(--bt-spacing-md);font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);color:var(--bt-color-text-primary);background-color:var(--bt-color-background);border:1px solid var(--bt-color-border);border-radius:var(--bt-radius-sm);cursor:pointer;transition:border-color var(--bt-transition-fast),box-shadow var(--bt-transition-fast),background-color var(--bt-transition-fast);appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--bt-color-text-secondary) 50%),linear-gradient(135deg, var(--bt-color-text-secondary) 50%, transparent 50%);background-position:calc(100% - 16px) calc(50% - 3px),calc(100% - 11px) calc(50% - 3px);background-size:5px 5px;background-repeat:no-repeat}.bt-date-picker__select:hover:not(:disabled){border-color:var(--bt-color-primary);background-color:var(--bt-color-background-secondary)}.bt-date-picker__select:focus-visible{outline:none;border-color:var(--bt-color-primary);box-shadow:0 0 0 3px rgba(0,0,0,.15)}.bt-date-picker__select:disabled{cursor:not-allowed;color:var(--bt-text-disabled);background-color:var(--bt-color-background-secondary);border-color:var(--bt-color-border-light)}.bt-date-picker--full-width{width:100%}.bt-date-picker--full-width .bt-date-picker__fields{width:100%}.bt-date-picker--full-width .bt-date-picker__select{flex:1;min-width:0}.bt-file-input{position:relative;display:inline-flex;align-items:center}.bt-file-input:hover .bt-file-input__label{border-color:var(--bt-color-border-light)}.bt-file-input__control{position:absolute;inset:0;opacity:0;cursor:pointer}.bt-file-input__label{border:1px solid var(--bt-color-border);border-radius:var(--bt-radius-md);background:var(--bt-color-background);padding:var(--bt-spacing-sm) var(--bt-spacing-lg);font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);color:var(--bt-color-text-primary);transition:background var(--bt-transition-base),border-color var(--bt-transition-base),box-shadow var(--bt-transition-base)}.bt-file-input__control:focus-visible+.bt-file-input__label{box-shadow:0 0 0 3px var(--bt-color-border-light);border-color:var(--bt-color-primary)}.bt-file-input--disabled{cursor:not-allowed}.bt-file-input--disabled .bt-file-input__control{cursor:not-allowed}.bt-file-input--disabled .bt-file-input__label{opacity:.6;cursor:not-allowed}.bt-file-input--disabled:hover .bt-file-input__label{border-color:var(--bt-color-border)}.bt-toast{font-family:var(--bt-font-family);font-size:var(--bt-font-size-base);border-radius:var(--bt-radius-md);box-shadow:var(--bt-shadow-lg)}.bt-hidden{display:none !important}.bt-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}