:root{--ribbon-bg: #f3f3f3;--ribbon-content-bg: #ffffff;--ribbon-border: #d1d1d1;--ribbon-hover: #e1e1e1;--ribbon-active-bg: #cce4f7;--ribbon-active-border: #0078d4;--ribbon-text: #242424;--ribbon-text-muted: #666666;--ribbon-disabled: .4;--ribbon-padding: 4px 8px;--ribbon-group-padding: 2px 4px}.ribbon-container{width:100%;background-color:var(--ribbon-bg);border-bottom:1px solid var(--ribbon-border);-webkit-user-select:none;-moz-user-select:none;user-select:none;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;position:relative;z-index:10}.window-qat{display:flex;align-items:center;gap:4px;flex:1;min-width:0;pointer-events:none}.window-qat__doc-name{flex:1;text-align:center;font-size:12px;color:#ffffffe6;font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:default}.qat-btn{width:20px;height:20px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:2px;cursor:pointer;color:#ffffffe6;transition:background-color .15s ease;flex-shrink:0;pointer-events:auto}.qat-btn:hover:not(:disabled){background-color:#ffffff26}.qat-btn:active:not(:disabled){background-color:#ffffff40}.qat-btn:disabled{opacity:.4;cursor:default}.ribbon-tabs{display:flex;align-items:flex-end;gap:0;padding:0 4px;background-color:var(--ribbon-bg);border-bottom:1px solid var(--ribbon-border)}.ribbon-tab-btn{padding:6px 14px;font-size:13px;font-weight:400;border:none;background:transparent;color:var(--ribbon-text);cursor:pointer;border-top-left-radius:2px;border-top-right-radius:2px;transition:background-color .15s ease;position:relative}.ribbon-tab-btn:hover{background-color:#0000000d}.ribbon-tab-btn--active{background-color:var(--ribbon-content-bg);font-weight:600;border-bottom:2px solid var(--ribbon-active-border);padding-bottom:5px}.ribbon-tab-btn--file{background-color:transparent;color:var(--ribbon-text);font-weight:500}.ribbon-tab-btn--file:hover{background-color:#0000000d}.ribbon-tab-btn--file.ribbon-tab-btn--active{background-color:#0078d4;color:#fff;border-bottom:3px solid white}.ribbon-tab-separator{width:1px;height:20px;background-color:#c8c8c8;margin:0 4px;align-self:center}.ribbon-tab-btn--contextual{color:#217346;border-top:2px solid transparent;padding-top:4px}.ribbon-tab-btn--contextual:hover{background-color:#2173461a;border-top-color:#217346}.ribbon-tab-btn--contextual.ribbon-tab-btn--active{background-color:var(--ribbon-content-bg);border-bottom:2px solid #217346;border-top-color:#217346;font-weight:600}.ribbon-collapse-btn{margin-left:auto;padding:4px 8px;border:none;background:transparent;cursor:pointer;color:var(--ribbon-text-muted);display:flex;align-items:center;border-radius:2px;transition:background-color .15s ease}.ribbon-collapse-btn:hover{background-color:var(--ribbon-hover)}.ribbon-content{display:flex;align-items:stretch;justify-content:flex-start;gap:0;padding:3px 6px;background-color:var(--ribbon-content-bg);min-height:80px;overflow:visible}.ribbon-container.ribbon-collapsed .ribbon-content{display:none}.ribbon-group{display:inline-flex;flex-direction:column;align-items:stretch;justify-content:space-between;gap:2px;padding:3px 10px 1px;position:relative;border-right:1px solid var(--ribbon-border)}.ribbon-group:last-child{border-right:none}.ribbon-group__content{display:flex;align-items:center;gap:3px;padding:0;flex:1}.ribbon-group__label{font-size:10px;color:var(--ribbon-text-muted);text-align:center;white-space:nowrap;margin-top:auto;padding-top:2px;display:flex;align-items:center;justify-content:center;gap:4px;position:relative}.ribbon-group-label{font-size:10px;color:var(--ribbon-text-muted);text-align:center;white-space:nowrap;margin-top:auto;padding-top:2px}.ribbon-group-divider{width:1px;height:48px;background-color:var(--ribbon-border);margin:0 6px;align-self:center}.ribbon-group__dialog-launcher{width:12px;height:12px;border:none;background:transparent;cursor:default;display:flex;align-items:center;justify-content:center;opacity:var(--ribbon-disabled);pointer-events:none;padding:0}.ribbon-group__dialog-launcher svg{width:10px;height:10px;color:var(--ribbon-text-muted)}.ribbon-dialog-launcher{position:absolute;bottom:2px;right:4px;width:10px;height:10px;border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:var(--ribbon-disabled);pointer-events:none}.ribbon-dialog-launcher svg{width:8px;height:8px;color:var(--ribbon-text-muted)}.ribbon-btn{display:flex;align-items:center;justify-content:center;border:1px solid transparent;background:transparent;border-radius:2px;cursor:pointer;color:var(--ribbon-text);transition:background-color .15s ease,border-color .15s ease;padding:3px}.ribbon-btn--sm{min-width:22px;min-height:22px;width:22px;height:22px}.ribbon-btn--md{width:28px;height:28px}.ribbon-btn--lg{width:48px;height:60px;flex-direction:column;padding:2px 4px}.ribbon-btn:hover:not(:disabled):not(.ribbon-btn--disabled){background-color:#f0f0f0;border-color:transparent}.ribbon-btn:active:not(:disabled):not(.ribbon-btn--disabled){background-color:var(--ribbon-active-bg);border-color:transparent}.ribbon-btn--active{background-color:var(--ribbon-active-bg);border-color:transparent}.ribbon-btn--disabled,.ribbon-btn:disabled{opacity:var(--ribbon-disabled);cursor:default;pointer-events:none}.ribbon-btn--text{white-space:nowrap}.ribbon-btn__lg-content{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:100%}.ribbon-btn__lg-icon{display:flex;align-items:center;justify-content:center;font-size:18px}.ribbon-btn__lg-label{font-size:9px;color:var(--ribbon-text);text-align:center;line-height:1.1;max-width:100%;overflow:hidden;text-overflow:ellipsis}.ribbon-dropdown{position:relative;display:inline-block}.ribbon-dropdown__trigger{width:100%;height:28px;display:flex;align-items:center;justify-content:space-between;gap:4px;padding:0 6px;border:1px solid var(--ribbon-border);background:var(--ribbon-content-bg);border-radius:2px;cursor:pointer;font-size:12px;color:var(--ribbon-text);transition:background-color .15s ease,border-color .15s ease}.ribbon-dropdown__trigger:hover:not(:disabled){background-color:var(--ribbon-hover);border-color:var(--ribbon-active-border)}.ribbon-dropdown__trigger--disabled,.ribbon-dropdown__trigger:disabled{opacity:var(--ribbon-disabled);cursor:default}.ribbon-dropdown__value{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:left}.ribbon-dropdown__icon{flex-shrink:0;color:var(--ribbon-text-muted)}.ribbon-dropdown__panel{position:absolute;top:100%;left:0;right:0;margin-top:2px;background:var(--ribbon-content-bg);border:1px solid var(--ribbon-border);border-radius:2px;box-shadow:0 4px 8px #00000026;z-index:1000;max-height:300px;overflow-y:auto}.ribbon-dropdown__list{display:flex;flex-direction:column}.ribbon-dropdown__option{width:100%;padding:4px 8px;border:none;background:transparent;text-align:left;font-size:11px;color:var(--ribbon-text);cursor:pointer;transition:background-color .15s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ribbon-dropdown__option:hover{background-color:var(--ribbon-hover)}.ribbon-dropdown__option--selected{background-color:var(--ribbon-active-bg)}.status-bar{height:24px;display:flex;align-items:center;justify-content:space-between;padding:0 8px;background-color:var(--ribbon-bg);border-top:1px solid var(--ribbon-border);font-size:11px;color:var(--ribbon-text)}.status-bar__left{display:flex;align-items:center;gap:12px}.status-bar__right{display:flex;align-items:center;gap:8px}.status-bar__zoom{display:flex;align-items:center;gap:4px}.status-bar__zoom-btn{width:18px;height:18px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:2px;cursor:pointer;color:var(--ribbon-text);transition:background-color .15s ease}.status-bar__zoom-btn:hover{background-color:var(--ribbon-hover)}.status-bar__zoom-value{min-width:36px;text-align:center;font-size:10px}.status-bar__zoom-slider{width:80px;height:3px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--ribbon-border);outline:none;border-radius:2px}.status-bar__zoom-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:10px;height:10px;background:var(--ribbon-active-border);cursor:pointer;border-radius:50%}.status-bar__zoom-slider::-moz-range-thumb{width:10px;height:10px;background:var(--ribbon-active-border);cursor:pointer;border-radius:50%;border:none}.color-picker-button{position:relative;display:inline-block}.color-picker-button__split{display:flex;align-items:stretch;border:1px solid transparent;border-radius:2px;overflow:hidden;transition:border-color .15s ease}.color-picker-button__split:hover{border-color:var(--ribbon-border)}.color-picker-button__main{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:0;cursor:pointer;color:var(--ribbon-text);transition:background-color .15s ease;padding:0}.color-picker-button__main:hover{background-color:var(--ribbon-hover)}.color-picker-button__icon{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%}.color-picker-button__color-bar{position:absolute;bottom:2px;left:2px;right:2px;height:3px}.color-picker-button__dropdown{width:12px;display:flex;align-items:center;justify-content:center;border:none;border-left:1px solid var(--ribbon-border);background:transparent;cursor:pointer;color:var(--ribbon-text-muted);transition:background-color .15s ease;padding:0}.color-picker-button__dropdown:hover{background-color:var(--ribbon-hover)}.color-picker-button__panel{position:absolute;top:100%;left:0;margin-top:2px;background:var(--ribbon-content-bg);border:1px solid var(--ribbon-border);border-radius:2px;box-shadow:0 4px 8px #00000026;z-index:1000;padding:8px}.color-picker{width:204px;display:flex;flex-direction:column;padding:4px 8px 8px}.color-picker__automatic{display:flex;align-items:center;gap:8px;width:100%;padding:4px;border:none;background:transparent;cursor:pointer;font-size:12px;color:var(--ribbon-text);text-align:left}.color-picker__automatic:hover{background-color:var(--ribbon-hover)}.color-picker__automatic-swatch{display:inline-block;width:16px;height:16px;background-color:#000;border:1px solid var(--ribbon-border)}.color-picker__section{display:flex;flex-direction:column;gap:4px;padding-top:6px;border-top:1px solid var(--ribbon-border)}.color-picker__label{font-size:11px;color:var(--ribbon-text);font-weight:600}.color-picker__grid{display:grid;grid-template-columns:repeat(10,17px);gap:2px}.color-picker__swatch{width:17px;height:17px;border:1px solid #cfcfcf;border-radius:0;cursor:pointer;padding:0;position:relative;box-sizing:border-box}.color-picker__swatch:hover{border-color:#666;box-shadow:0 0 0 1px #666;z-index:1}.color-picker__swatch--selected{border:2px solid var(--ribbon-active-border);box-shadow:0 0 0 1px var(--ribbon-active-border)}.color-picker__more-colors{display:flex;align-items:center;gap:6px;width:100%;padding:4px;border:none;background:transparent;cursor:pointer;font-size:12px;color:var(--ribbon-text);text-align:left}.color-picker__more-colors:hover{background-color:var(--ribbon-hover)}.color-picker__custom-input{display:flex;align-items:center;gap:4px}.color-picker__hex-input{flex:1;padding:4px 6px;border:1px solid var(--ribbon-border);border-radius:2px;font-size:11px;font-family:monospace;outline:none}.color-picker__hex-input:focus{border-color:var(--ribbon-active-border)}.color-picker__preview{width:24px;height:24px;border:1px solid var(--ribbon-border);border-radius:2px}.color-picker__apply{padding:4px 8px;border:1px solid var(--ribbon-border);background:var(--ribbon-content-bg);border-radius:2px;cursor:pointer;font-size:10px;color:var(--ribbon-text);transition:background-color .15s ease}.color-picker__apply:hover{background-color:var(--ribbon-hover)}.file-menu{position:absolute;top:100%;left:0;min-width:320px;background:#fff;border:1px solid var(--ribbon-border);border-radius:0 0 4px 4px;box-shadow:0 4px 12px #00000026;z-index:1000;padding:4px 0}.file-menu__item{width:100%;display:flex;align-items:flex-start;gap:12px;padding:12px 16px;border:none;background:transparent;text-align:left;cursor:pointer;transition:background-color .15s ease;color:var(--ribbon-text)}.file-menu__item:hover{background-color:#f0f0f0}.file-menu__item svg{flex-shrink:0;margin-top:2px;color:#616161}.file-menu__item-title{font-size:14px;font-weight:500;margin-bottom:2px}.file-menu__item-desc{font-size:11px;color:var(--ribbon-text-muted)}.file-menu__divider{height:1px;background-color:var(--ribbon-border);margin:4px 0}.layout-dropdown{position:absolute;top:100%;left:0;z-index:100;background:#fff;border:1px solid #d1d1d1;border-radius:4px;box-shadow:0 4px 12px #00000026;padding:4px 0;min-width:220px;margin-top:2px}.layout-dropdown__item{display:flex;align-items:center;gap:12px;padding:8px 12px;width:100%;border:none;background:none;cursor:pointer;text-align:left;font-size:12px}.layout-dropdown__item:hover{background:#e8e8e8}.layout-dropdown__item--active{background:#e5f1fb}.layout-dropdown__thumbnail{width:40px;height:52px;border:1px solid #999;background:#fff;position:relative;flex-shrink:0}.layout-dropdown__thumbnail-margin{position:absolute;border:1px dashed #b4d5fe;background:#e5f1fb}.layout-dropdown__info{display:flex;flex-direction:column;gap:2px}.layout-dropdown__name{font-weight:600;font-size:12px}.layout-dropdown__desc{font-size:10px;color:#666}.orientation-dropdown__item{display:flex;align-items:center;gap:10px;padding:8px 16px;width:100%;border:none;background:none;cursor:pointer;font-size:12px}.orientation-dropdown__item:hover{background:#e8e8e8}.orientation-dropdown__item--active{background:#e5f1fb}.orientation-dropdown__icon{border:1px solid #999;background:#fff;flex-shrink:0}.orientation-dropdown__icon--portrait{width:24px;height:32px}.orientation-dropdown__icon--landscape{width:32px;height:24px}