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var(--transition-fast)}.timestamp-list__sort-button:first-child{border-radius:var(--border-radius-sm) 0 0 var(--border-radius-sm)}.timestamp-list__sort-button:last-child{border-radius:0 var(--border-radius-sm) var(--border-radius-sm) 0;border-left:none}.timestamp-list__sort-button:hover{color:var(--color-text);background-color:var(--color-hover)}.timestamp-list__sort-button.is-active{color:#fff;background-color:var(--color-accent);border-color:var(--color-accent)}.timestamp-list__sort-button.is-active+.timestamp-list__sort-button{border-left:1px solid var(--color-border)}.timestamp-list__sort-button:focus{outline:2px solid var(--color-accent);outline-offset:2px;z-index:1}@media(min-width:768px){.timestamp-list__sort-button{width:32px;height:32px}}.timestamp-list__sort-icon--asc,.timestamp-list__sort-icon--desc{font-size:20px}.timestamp-list__sort-icon--asc{transform:rotate(180deg)}@media(min-width:768px){.timestamp-list__sort-icon--asc,.timestamp-list__sort-icon--desc{font-size:24px}}.timestamp-list__empty{padding:var(--spacing-md);text-align:center;font-size:var(--font-size-sm);color:var(--color-text-secondary);background-color:var(--color-hover);border-radius:var(--border-radius-md)}@media(min-width:768px){.timestamp-list__empty{padding:var(--spacing-lg);font-size:var(--font-size-md)}}.timestamp-list__items{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:var(--spacing-xs);max-height:230px;overflow-y:auto;padding-right:var(--spacing-xs)}.timestamp-list__items::-webkit-scrollbar{width:3px}.timestamp-list__items::-webkit-scrollbar-track{background-color:#e0e0e0;border-radius:3px}.timestamp-list__items::-webkit-scrollbar-thumb{background-color:var(--color-primary);border-radius:3px}.timestamp-list__items::-webkit-scrollbar-thumb:hover{background-color:#c00}.timestamp-list__items{scrollbar-width:thin;scrollbar-color:var(--color-primary) #e0e0e0}@media(min-width:768px){.timestamp-list__items{max-height:340px}}.timestamp-list__items.is-expanded{max-height:none;overflow-y:visible}.timestamp-list__item{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);transition:background-color var(--transition-fast)}@media(min-width:768px){.timestamp-list__item{gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius-md)}}.timestamp-list__item:hover{background-color:var(--color-border)}.timestamp-list__time-button{flex-shrink:0;padding:2px var(--spacing-xs);font-family:var(--font-family-mono);font-size:var(--font-size-xs);font-weight:600;color:var(--color-accent);background-color:transparent;border:1px solid var(--color-accent);border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast);min-width:50px;text-align:center}@media(min-width:768px){.timestamp-list__time-button{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-sm);min-width:60px}}.timestamp-list__time-button:hover{color:#fff;background-color:var(--color-accent)}.timestamp-list__time-button:focus{outline:2px solid var(--color-accent);outline-offset:2px}.timestamp-list__adjust-buttons{display:flex;flex-shrink:0}.timestamp-list__adjust-button{display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;font-size:10px;font-weight:600;color:var(--color-text-secondary);background-color:transparent;border:1px solid var(--color-border);border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast)}.timestamp-list__adjust-button:first-child{border-radius:var(--border-radius-sm) 0 0 var(--border-radius-sm)}.timestamp-list__adjust-button:last-child{border-radius:0 var(--border-radius-sm) var(--border-radius-sm) 0;border-left:none}.timestamp-list__adjust-button:hover{color:var(--color-text);background-color:var(--color-hover)}.timestamp-list__adjust-button:focus{outline:2px solid var(--color-accent);outline-offset:2px;z-index:1}@media(min-width:375px){.timestamp-list__adjust-button{width:40px;height:32px;font-size:11px}}@media(min-width:768px){.timestamp-list__adjust-button{width:40px;height:32px;font-size:11px}}.timestamp-list__item-title{flex:1;min-width:0;padding:2px var(--spacing-xs);font-size:var(--font-size-sm);color:var(--color-text);background:transparent;border:1px solid transparent;border-radius:var(--border-radius-sm);cursor:pointer;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:all var(--transition-fast)}.timestamp-list__item-title:hover{background-color:var(--color-background);border-color:var(--color-border)}.timestamp-list__item-title:focus{outline:2px solid var(--color-accent);outline-offset:2px}@media(min-width:768px){.timestamp-list__item-title{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-md)}}.timestamp-list__item-input{flex:1;min-width:0;padding:2px var(--spacing-xs);font-size:var(--font-size-md);color:var(--color-text);background-color:var(--color-background);border:1px solid var(--color-accent);border-radius:var(--border-radius-sm)}.timestamp-list__item-input:focus{outline:none;border-color:var(--color-accent)}@media(min-width:768px){.timestamp-list__item-input{padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-md)}}.timestamp-list__delete-button{flex-shrink:0;padding:2px;font-size:var(--font-size-xs);color:var(--color-text-secondary);background-color:transparent;border:none;border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast);min-width:32px;min-height:32px;display:flex;align-items:center;justify-content:center}@media(min-width:768px){.timestamp-list__delete-button{padding:var(--spacing-xs);font-size:var(--font-size-sm);min-width:var(--touch-target-min);min-height:var(--touch-target-min)}}.timestamp-list__delete-button:hover{color:var(--color-primary);background-color:#ff00001a}.timestamp-list__delete-button:focus{outline:2px solid var(--color-primary);outline-offset:2px}.timestamp-list__scroll-hint{margin:var(--spacing-sm) 0 0;padding:2px 0 0;font-size:var(--font-size-xs);border-top:1px solid #ccc;color:var(--color-text-secondary)}.export-buttons{margin-top:var(--spacing-sm);padding:var(--spacing-sm);background-color:var(--color-hover);border-radius:var(--border-radius-md)}@media(min-width:768px){.export-buttons{margin-top:var(--spacing-md);padding:var(--spacing-md)}}.export-buttons__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-xs)}@media(min-width:768px){.export-buttons__header{margin-bottom:var(--spacing-sm)}}.export-buttons__title{margin:0;font-size:var(--font-size-sm);font-weight:600;color:var(--color-text)}@media(min-width:768px){.export-buttons__title{font-size:var(--font-size-md)}}.export-buttons__copy-button{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-xs);font-weight:600;color:var(--color-text);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast)}@media(min-width:768px){.export-buttons__copy-button{padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm)}}.export-buttons__copy-button .material-symbols-outlined{font-size:16px}@media(min-width:768px){.export-buttons__copy-button .material-symbols-outlined{font-size:18px}}.export-buttons__copy-button:hover:not(:disabled){color:var(--color-accent);border-color:var(--color-accent)}.export-buttons__copy-button:focus{outline:2px solid var(--color-accent);outline-offset:2px}.export-buttons__copy-button:disabled{opacity:.5;cursor:not-allowed}.export-buttons__copy-label{white-space:nowrap}.export-buttons__output{padding:var(--spacing-sm);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);min-height:60px}@media(min-width:768px){.export-buttons__output{padding:var(--spacing-md);min-height:80px}}.export-buttons__text{margin:0;font-family:var(--font-family-mono);font-size:var(--font-size-xs);line-height:1.8;color:var(--color-text);white-space:pre-wrap;word-break:break-all}@media(min-width:768px){.export-buttons__text{font-size:var(--font-size-sm)}}.export-buttons__placeholder{margin:0;font-size:var(--font-size-xs);color:var(--color-text-secondary)}@media(min-width:768px){.export-buttons__placeholder{font-size:var(--font-size-sm)}}.import-trigger{display:flex;align-items:center;justify-content:center;width:28px;height:28px;color:var(--color-text-secondary);background-color:transparent;border:1px solid var(--color-border);border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast)}@media(min-width:768px){.import-trigger{width:32px;height:32px}}.import-trigger .material-symbols-outlined{font-size:20px}@media(min-width:768px){.import-trigger .material-symbols-outlined{font-size:24px}}.import-trigger:hover{color:var(--color-text);background-color:var(--color-hover)}.import-trigger:focus{outline:2px solid var(--color-accent);outline-offset:2px}.import-modal{padding:0;border:none;border-radius:var(--border-radius-md);background:transparent;max-width:500px;width:calc(100% - var(--spacing-md) * 2);margin:auto}.import-modal::backdrop{background-color:#3d2e2e80}.import-modal__content{padding:var(--spacing-md);background-color:var(--color-background);border-radius:var(--border-radius-md);box-shadow:0 4px 24px #3d2e2e26,0 1px 4px #3d2e2e1a}@media(min-width:768px){.import-modal__content{padding:var(--spacing-lg)}}.import-modal__header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--spacing-sm)}.import-modal__title{margin:0;font-size:var(--font-size-sm);font-weight:600;color:var(--color-text)}@media(min-width:768px){.import-modal__title{font-size:var(--font-size-md)}}.import-modal__close{display:flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;color:var(--color-text-secondary);background:none;border:none;border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast)}.import-modal__close:hover{color:var(--color-text);background-color:var(--color-hover)}.import-modal__close:focus{outline:2px solid var(--color-accent);outline-offset:2px}.import-modal__input{display:block;width:100%;padding:var(--spacing-sm);font-family:var(--font-family-mono);font-size:var(--font-size-xs);line-height:1.8;color:var(--color-text);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);resize:vertical;box-sizing:border-box}@media(min-width:768px){.import-modal__input{padding:var(--spacing-md);font-size:var(--font-size-sm)}}.import-modal__input:focus{outline:2px solid var(--color-accent);outline-offset:2px}.import-modal__message{margin:var(--spacing-xs) 0 0;font-size:var(--font-size-xs)}.import-modal__message--success{color:var(--color-success, #16a34a)}.import-modal__message--error{color:var(--color-error, #dc2626)}.import-modal__button{display:inline-flex;align-items:center;gap:var(--spacing-xs);margin-top:var(--spacing-sm);padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--font-size-xs);font-weight:600;color:var(--color-text);background-color:var(--color-background);border:1px solid var(--color-border);border-radius:var(--border-radius-sm);cursor:pointer;transition:all var(--transition-fast)}@media(min-width:768px){.import-modal__button{padding:var(--spacing-xs) var(--spacing-md);font-size:var(--font-size-sm)}}.import-modal__button .material-symbols-outlined{font-size:16px}@media(min-width:768px){.import-modal__button .material-symbols-outlined{font-size:18px}}.import-modal__button:hover:not(:disabled){color:var(--color-accent);border-color:var(--color-accent)}.import-modal__button:focus{outline:2px solid var(--color-accent);outline-offset:2px}.import-modal__button:disabled{opacity:.5;cursor:not-allowed}.import-modal__button--primary{color:#fff;background-color:var(--color-accent);border-color:var(--color-accent)}.import-modal__button--primary:hover:not(:disabled){color:#fff;opacity:.85}.import-modal__button--cancel{color:var(--color-text-secondary)}.import-modal__button--cancel:hover:not(:disabled){color:var(--color-text);border-color:var(--color-text)}.import-modal__confirm{margin-top:var(--spacing-sm)}.import-modal__confirm-text{margin:0 0 var(--spacing-xs);font-size:var(--font-size-xs);font-weight:600;color:var(--color-text)}@media(min-width:768px){.import-modal__confirm-text{font-size:var(--font-size-sm)}}.import-modal__confirm-buttons{display:flex;gap:var(--spacing-xs);flex-wrap:wrap}.import-modal__confirm-buttons .import-modal__button{margin-top:0}.app{min-height:calc(100vh - 200px);padding:var(--spacing-md) 0}.app__guide{max-width:480px;margin:var(--spacing-xl) auto 0;padding:2rem 1.5rem 1.5rem;background:#fff;border-radius:2px;text-align:center;position:relative;box-shadow:2px 2px 6px #3d2e2e14,0 1px 3px #3d2e2e0f;transform:rotate(-.5deg)}.app__guide-tape{position:absolute;top:-8px;left:50%;transform:translate(-50%) rotate(-2deg);width:80px;height:20px;opacity:.85;background-color:var(--color-masking-tape, #a8d8a8);clip-path:polygon(2% 0%,98% 3%,96% 100%,0% 97%)}.app__guide-lead{font-family:var(--font-family-heading, sans-serif);font-size:var(--font-size-md);font-weight:700;color:var(--color-text, #3d2e2e);margin:0 0 1.25rem}.app__guide-steps{list-style:none;padding:0;margin:0 0 1.25rem;display:flex;flex-direction:column;gap:.6rem}.app__guide-step{display:flex;align-items:center;gap:.75rem;text-align:left}.app__guide-number{display:flex;align-items:center;justify-content:center;width:28px;height:28px;flex-shrink:0;font-family:var(--font-family-heading, sans-serif);font-size:var(--font-size-sm);font-weight:700;color:var(--color-stamp-ink, #e05a4e);border:2px solid var(--color-stamp-ink, #e05a4e);border-radius:50%}.app__guide-step-text{font-size:var(--font-size-sm);color:var(--color-text-secondary, #6b5e5e);line-height:1.6}.app__guide-link{display:inline-block;padding:.4rem 1.2rem;font-size:var(--font-size-sm);font-weight:600;color:var(--color-stamp-ink, #e05a4e);border:2px solid var(--color-stamp-ink, #e05a4e);border-radius:var(--border-radius-sm);text-decoration:none;transition:background-color .2s ease,color .2s ease}.app__guide-link:hover{background-color:var(--color-stamp-ink, #e05a4e);color:#fff}@media(prefers-reduced-motion:reduce){.app__guide-link{transition:none}}.app__content{display:flex;flex-direction:column;gap:var(--spacing-md);margin-top:var(--spacing-lg)}.app__main,.app__sidebar{width:100%}@media(min-width:768px){.app__content{flex-direction:row;align-items:flex-start}.app__main{flex:1;position:sticky;top:40px;max-width:50%;min-width:0}.app__sidebar{flex:1;top:calc(var(--spacing-lg) + 60px)}}