:root{--color-bg:#f5f5f7;--color-surface:#fff;--color-text:#1d1d1f;--color-text-secondary:#6e6e73;--color-border:#d2d2d7;--color-accent:#0071e3;--color-accent-hover:#0077ed;--color-accent-bg:#0071e31a;--color-success:#34c759;--color-success-bg:#34c7591f;--color-warning:#ff9f0a;--color-warning-bg:#ff9f0a1f;--color-danger:#ff3b30;--color-danger-bg:#ff3b301f;--color-danger-hover:#e0352b;--color-neutral:#6e6e73;--color-neutral-bg:#6e6e731f;--color-on-accent:#fff;--font-sans:-apple-system, "SF Pro Text", system-ui, "Segoe UI", Roboto, sans-serif;--text-xs:12px;--text-sm:13px;--text-base:15px;--text-lg:17px;--text-xl:22px;--text-2xl:28px;--text-3xl:34px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--shadow-sm:0 1px 2px #0000000f;--shadow-md:0 4px 16px #0000001a;--text:var(--color-text-secondary);--text-h:var(--color-text);--border:var(--color-border);--accent:var(--color-accent);--accent-bg:var(--color-accent-bg);--code-bg:var(--color-bg)}*{box-sizing:border-box}body{font:var(--text-base) / 1.5 var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}h1,h2,h3{font-family:var(--font-sans);color:var(--color-text);margin:0;font-weight:600}p{margin:0}#root{min-height:100vh}.btn{justify-content:center;align-items:center;gap:var(--space-2);font-family:var(--font-sans);border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;font-weight:500;transition:background-color .15s,border-color .15s;display:inline-flex}.btn:disabled{cursor:not-allowed;opacity:.5}.btn:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.btn--md{padding:var(--space-2) var(--space-4);font-size:var(--text-sm)}.btn--sm{padding:var(--space-1) var(--space-3);font-size:var(--text-xs)}.btn--primary{background:var(--color-accent);color:var(--color-on-accent)}.btn--primary:hover:not(:disabled){background:var(--color-accent-hover)}.btn--secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.btn--secondary:hover:not(:disabled){background:var(--color-bg)}.btn--danger{background:var(--color-danger);color:var(--color-on-accent)}.btn--danger:hover:not(:disabled){background:var(--color-danger-hover)}.card{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:var(--space-5)}.card__title{font-size:var(--text-xl);margin:0 0 var(--space-4)}.card__body{color:var(--color-text)}.login-page{background:var(--color-bg);flex-direction:column;justify-content:center;align-items:center;min-height:100vh;display:flex}.login-page__logo{width:140px;height:auto;margin-bottom:var(--space-6)}.login-page__card{width:100%;max-width:360px}.login-page__card form{gap:var(--space-4);flex-direction:column;display:flex}.login-page__title{font-size:var(--text-2xl);text-align:center}.login-page__field{padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:var(--text-base);font-family:var(--font-sans)}.login-page__field:focus-visible{outline:2px solid var(--color-accent);outline-offset:1px}.login-page__error{color:var(--color-danger);font-size:var(--text-sm);margin:0}.form-field{gap:var(--space-1);font-size:var(--text-sm);color:var(--color-text);flex-direction:column;display:flex}.form-field__label{font-weight:500}.form-field input,.form-field select,.form-field textarea{font:inherit;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-2) var(--space-3)}.form-field input:focus-visible,.form-field select:focus-visible,.form-field textarea:focus-visible{outline:2px solid var(--color-accent);outline-offset:1px}.form-field input:disabled,.form-field select:disabled,.form-field textarea:disabled{background:var(--color-bg);color:var(--color-text-secondary)}.form-field__error{color:var(--color-danger);font-size:var(--text-xs);margin:0}.checkbox-field{align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text);display:inline-flex}.modal-overlay{padding:var(--space-5);z-index:100;background:#1d1d1f66;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:var(--space-5);width:100%;max-width:560px;max-height:calc(100vh - var(--space-8));overflow-y:auto}.modal__title{font-size:var(--text-xl);margin:0 0 var(--space-4)}.modal__body{gap:var(--space-3);flex-direction:column;display:flex}.modal__footer{gap:var(--space-3);margin-top:var(--space-5);display:flex}.modal__actions{gap:var(--space-3);margin-top:var(--space-2);display:flex}.pill{padding:var(--space-1) var(--space-3);border-radius:var(--radius-lg);font-size:var(--text-xs);align-items:center;font-weight:600;display:inline-flex}.pill--success{background:var(--color-success-bg);color:var(--color-success)}.pill--warning{background:var(--color-warning-bg);color:var(--color-warning)}.pill--danger{background:var(--color-danger-bg);color:var(--color-danger)}.pill--neutral{background:var(--color-neutral-bg);color:var(--color-neutral)}.segment-form{gap:var(--space-3);flex-direction:column;display:flex}.segment-form__status{align-items:center;gap:var(--space-2);display:flex}.segment-form__status select{flex:1}.icon-btn{border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;width:28px;height:28px;transition:background-color .15s,border-color .15s;display:inline-flex}.icon-btn:disabled{cursor:not-allowed;opacity:.5}.icon-btn:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.icon-btn--secondary{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.icon-btn--secondary:hover:not(:disabled){background:var(--color-bg)}.icon-btn--primary{background:var(--color-accent-bg);color:var(--color-accent)}.icon-btn--primary:hover:not(:disabled){background:var(--color-accent);color:var(--color-on-accent)}.icon-btn--danger{background:var(--color-danger-bg);color:var(--color-danger)}.icon-btn--danger:hover:not(:disabled){background:var(--color-danger);color:var(--color-on-accent)}.table-scroll{overflow-x:auto}.table{border-collapse:collapse;width:100%;font-size:var(--text-sm)}.table__head .table__header-cell{text-align:left;padding:var(--space-2) var(--space-3);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-secondary);border-bottom:1px solid var(--color-border);font-weight:600}.table__row{border-bottom:1px solid var(--color-border)}.table__body .table__row:hover{background:var(--color-bg)}.table__cell{padding:var(--space-3);vertical-align:middle;color:var(--color-text)}.segment-row__drag{width:32px}.segment-row__drag-handle{width:24px;height:24px;color:var(--color-text-secondary);cursor:grab;border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;display:inline-flex}.segment-row__drag-handle:hover{background:var(--color-bg)}.segment-row__drag-handle:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.segment-row__name{align-items:center;gap:var(--space-2);display:inline-flex}.segment-row__icon{color:var(--color-text-secondary);flex-shrink:0}.segment-row__name-en{color:var(--color-text-secondary);font-size:var(--text-xs)}.segment-row__slug{font-family:ui-monospace,SFMono-Regular,monospace;font-size:var(--text-xs);background:var(--color-bg);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm)}.segment-row__actions{align-items:center;gap:var(--space-2);flex-wrap:wrap;display:flex}.segment-row__link{font-size:var(--text-xs);color:var(--color-accent);white-space:nowrap;text-decoration:none}.segment-row__link:hover{text-decoration:underline}.empty-state{padding:var(--space-7) var(--space-5);text-align:center;color:var(--color-text-secondary)}.empty-state__title{font-size:var(--text-lg);color:var(--color-text);margin:0 0 var(--space-2);font-weight:500}.empty-state__description{font-size:var(--text-sm);margin:0}.page-header{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;display:flex}.page-header__title{font-size:var(--text-3xl);letter-spacing:-.02em;font-weight:600}.page-header__actions{gap:var(--space-3);display:flex}.bindings-panel{gap:var(--space-5);flex-direction:column;display:flex}.bindings-panel .card__body{gap:var(--space-3);flex-direction:column;display:flex}.bindings-panel__code{font-family:ui-monospace,SFMono-Regular,monospace;font-size:var(--text-xs);color:var(--color-text-secondary)}.bindings-panel__actions{gap:var(--space-2);display:flex}.binding-form{gap:var(--space-3);flex-direction:column;display:flex}.segment-detail-header{gap:var(--space-3);margin-bottom:var(--space-5);flex-direction:column;display:flex}.segment-detail-header__back{align-items:center;gap:var(--space-1);font-size:var(--text-sm);color:var(--color-text-secondary);width:fit-content;text-decoration:none;display:inline-flex}.segment-detail-header__back:hover{color:var(--color-text)}.segment-detail-header__title{font-size:var(--text-2xl);font-weight:600}.segment-detail-header__tabs{gap:var(--space-2);border-bottom:1px solid var(--color-border);display:flex}.segment-detail-header__tab{padding:var(--space-2) var(--space-4);font-size:var(--text-sm);color:var(--color-text-secondary);border-bottom:2px solid #0000;margin-bottom:-1px;font-weight:500;text-decoration:none}.segment-detail-header__tab:hover{color:var(--color-text)}.segment-detail-header__tab[aria-current=page]{color:var(--color-accent);border-bottom-color:var(--color-accent)}.segment-detail-page{gap:var(--space-5);flex-direction:column;display:flex}.questions-page__filters{gap:var(--space-3);margin-bottom:var(--space-4);flex-wrap:wrap;display:flex}.questions-page__search{flex:240px;min-width:200px}.questions-page__row{cursor:pointer}.questions-page__type-cell{align-items:center;gap:var(--space-2);display:inline-flex}.questions-page__type-icon{color:var(--color-text-secondary)}.questions-page__segments-cell{gap:var(--space-1);flex-wrap:wrap;display:inline-flex}.questions-page__actions{text-align:right}.options-editor__row{grid-template-columns:8rem 1fr 1fr auto auto auto;align-items:center;gap:.5rem;margin-bottom:.5rem;display:grid}.question-content-editor{flex-direction:column;gap:1rem;display:flex}.question-content-editor__options{border:1px solid var(--color-border,#e2e8f0);border-radius:.5rem;padding:1rem}.question-content-editor__actions{gap:.75rem;display:flex}.question-content-editor--readonly input{opacity:.75}.question-segments-panel{gap:var(--space-3);flex-direction:column;display:flex}.question-segments-panel__actions{gap:var(--space-2);display:flex}.question-segments-form{gap:var(--space-3);flex-direction:column;display:flex}.version-history{flex-direction:column;gap:1rem;display:flex}.version-history__active{border:1px solid var(--color-border,#e2e8f0);border-radius:.5rem;padding:1rem}.version-history__row-header{align-items:center;gap:.5rem;margin-bottom:.5rem;display:flex}.version-history__version-label{font-weight:600}.version-history__list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.version-history__item{border:1px solid var(--color-border,#e2e8f0);border-radius:.5rem}.version-history__toggle{cursor:pointer;text-align:left;width:100%;font:inherit;background:0 0;border:none;align-items:center;gap:.5rem;padding:.75rem 1rem;display:flex}.version-history__toggle-hint{color:var(--color-text-muted,#64748b);margin-left:auto;font-size:.875rem}.version-history__body{flex-direction:column;gap:.5rem;padding:0 1rem 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solid #0000;font-weight:600}.question-detail-page__tab--active{color:var(--color-text);border-bottom-color:var(--color-accent)}.question-form{gap:var(--space-3);flex-direction:column;display:flex}.theme-editor{gap:var(--space-5);flex-direction:column;display:flex}.theme-editor__section{gap:var(--space-4);flex-direction:column;display:flex}.theme-editor__color-field{align-items:center;gap:var(--space-2);display:flex}.theme-editor__color-field input[type=color]{border:1px solid var(--color-border);border-radius:var(--radius-sm);cursor:pointer;background:0 0;order:-1;width:36px;height:36px;padding:0}.theme-editor__color-field input:not([type=color]){flex:1}.theme-editor__asset-preview{object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--color-border);width:64px;height:64px}.theme-editor__validation ul{padding-left:var(--space-5);color:var(--color-danger);margin:0}.theme-editor__actions{align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.theme-editor-page{gap:var(--space-5);flex-direction:column;display:flex}.theme-editor-page__row-actions{gap:var(--space-2);display:flex}.app-layout{min-height:100vh;display:flex}.app-nav{background:var(--color-surface);border-right:1px solid var(--color-border);width:240px;padding:var(--space-6) var(--space-4);flex-direction:column;flex-shrink:0;justify-content:space-between;display:flex}.app-nav__top{flex-direction:column;display:flex}.app-nav__logo{width:120px;height:auto;margin:0 var(--space-3) var(--space-6)}.app-nav__list{gap:var(--space-1);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.app-nav__item{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--text-sm);font-weight:500;text-decoration:none;display:block}.app-nav__item:hover{background:var(--color-bg)}.app-nav__item[aria-current=page]{background:var(--color-accent-bg);color:var(--color-accent)}.app-nav__item--disabled{justify-content:space-between;gap:var(--space-2);padding:var(--space-2) var(--space-3);color:var(--color-text-secondary);font-size:var(--text-sm);display:flex}.app-nav__badge{font-size:var(--text-xs);color:var(--color-text-secondary)}.app-main{padding:var(--space-6) var(--space-7);flex:1;max-width:1100px}