:root{--bg0:#1a1a1a;--bg1:#323232;--bg2:#2b2b2b;--bg3:#3d3d3d;--border:#010101;--border2:#242424;--border-hi:#4a4a4a;--t1:#e8e8e8;--t2:#b8b8b8;--t3:#8c8c8c;--accent:#2688eb;--ah:#4ba3ff;--danger:#e34850;--lw:284px;--rw:290px;--header-h:29px;--toolbar-h:30px;--footer-h:22px;--radius:3px;--space-1:4px;--space-2:8px;--panel-inset:8px;--thumb-size:76px;--thumb-cell:76px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg0);color:var(--t1);height:100vh;display:flex;flex-direction:column;overflow:hidden;font-size:12px;-webkit-font-smoothing:antialiased}canvas{display:block;outline:none}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg2)}::-webkit-scrollbar-thumb{background:#5a5a5a;border:2px solid var(--bg2);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:#707070}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:3px 12px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;font-size:11px;font-weight:400;color:var(--t2);background:linear-gradient(180deg,#5a5a5a,#4a4a4a);border-color:#2d2d2d #2d2d2d #1a1a1a;box-shadow:inset 0 1px #ffffff14;transition:background .1s,color .1s;white-space:nowrap;font-family:inherit}.btn:hover{background:linear-gradient(180deg,#666,#555);color:var(--t1)}.btn:disabled{opacity:.45;cursor:not-allowed;pointer-events:none}.btn.sm{padding:2px 8px;font-size:10px}.btn.primary{background:linear-gradient(180deg,var(--ah) 0%,var(--accent) 100%);color:#fff;border-color:#1a4a7a #0d3d6b #082f55;box-shadow:inset 0 1px 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10px;border-radius:999px;background:#2688eb1f;border:1px solid rgba(38,136,235,.3);color:#b9dcff;font-size:10px;font-weight:600;font-family:Consolas,monospace;letter-spacing:.04em;flex-shrink:0}.tb-inp-num{width:62px;padding:2px 4px;font-size:11px;height:22px;border-radius:3px}.dim-x{color:var(--t3);font-size:11px;font-weight:500}.check-row{display:flex;align-items:center;gap:4px;color:var(--t3);font-size:10px;white-space:nowrap}#main{display:flex;flex:1;overflow:hidden;position:relative}#left-panel{width:var(--lw);max-width:var(--lw);background:var(--bg1);border-right:1px solid #010101;box-shadow:1px 0 #ffffff0d;display:flex;flex-direction:column;flex-shrink:0;overflow:hidden;min-width:0;z-index:80}.lp-head{display:flex;align-items:center;justify-content:flex-start;min-height:24px;padding:0 10px;background:linear-gradient(180deg,#3a3a3a,#323232);border-bottom:1px solid #010101;flex-shrink:0}.lp-title{font-size:11px;font-weight:600;color:var(--t2)}.lp-scroll{overflow-x:hidden;overflow-y:auto;flex:1;min-width:0;background:#2a2a2a}.thumb-hint{margin:0;padding:10px var(--panel-inset);font-size:11px;line-height:1.4;color:var(--t3);border-bottom:1px solid var(--border2)}.thumb-list{display:flex;flex-direction:column;gap:10px;padding:12px var(--panel-inset) 18px}.file-item{display:flex;align-items:flex-start;gap:8px;border-radius:calc(var(--radius) + 2px);border:1px solid var(--border-hi);background:var(--bg2);cursor:default;padding:9px 10px;transition:border-color .12s,background .12s,box-shadow .12s;box-shadow:inset 0 0 0 1px #00000038}.file-item:hover{border-color:#5a5a5a;background:var(--bg3)}.file-item.active{border-color:var(--accent);background:#2688eb24;box-shadow:inset 0 0 0 1px #2688eb73}.file-item-main{flex:1;min-width:0;display:grid;grid-template-columns:var(--thumb-cell) minmax(0,1fr);gap:12px;align-items:start;padding:0;margin:0;border:none;background:transparent;cursor:pointer;font:inherit;color:inherit;text-align:left}.file-name-input{width:100%;max-width:100%;box-sizing:border-box;padding:2px 4px;margin:-2px -4px;font-size:12px;font-weight:500;line-height:1.25;color:var(--t1);border:1px solid transparent;border-radius:3px;background:#0000002e;outline:none}.file-name-input:hover{border-color:#ffffff14}.file-name-input:focus{cursor:text;border-color:var(--accent);background:#2688eb1f;box-shadow:0 0 0 1px #2688eb59}.file-remove{flex-shrink:0;width:26px;height:26px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:var(--radius);border:1px solid transparent;background:#00000026;color:var(--t3);cursor:pointer;transition:background .12s,color .12s,border-color .12s;margin-top:2px}.file-remove:hover{background:#e348502e;border-color:#e3485059;color:#fca5a5}.file-remove 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span{font-size:10px;line-height:1.4;color:var(--t2)}.inline-field{margin-top:0}.format-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}.format-card{display:flex;flex-direction:column;align-items:flex-start;gap:1px;min-width:0;padding:6px 7px;border:1px solid var(--border2);border-radius:var(--radius);color:var(--t2);background:#00000024;font:inherit;cursor:pointer;text-align:left;box-shadow:inset 0 1px #ffffff08;transition:background .12s,border-color .12s,color .12s,box-shadow .12s}.format-card:hover{background:#ffffff0a;border-color:var(--border-hi);color:var(--t1)}.format-card.active{border-color:var(--accent);background:#2688eb24;color:var(--t1);box-shadow:inset 0 0 0 1px #2688eb47}.format-card strong{font-size:11px;line-height:1;color:inherit}.format-card span{font-size:8px;color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.format-card.active span{color:#b9dcff}.format-card-wide{grid-column:1 / -1}#footer{height:var(--footer-h);background:linear-gradient(180deg,#323232,#2e2e2e);border-top:1px solid #010101;box-shadow:inset 0 1px #ffffff0f;display:flex;align-items:center;justify-content:space-between;padding:0 10px;flex-shrink:0;font-size:11px;color:var(--t3)}#footer-l,#footer-r{display:flex;align-items:center;gap:10px}.modal-backdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#000000a6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);align-items:center;justify-content:center}.modal-backdrop.open{display:flex}.modal{background:#323232;border:1px solid var(--border-hi);border-radius:calc(var(--radius) + 1px);display:flex;flex-direction:column;overflow:hidden;box-shadow:0 24px 64px #000000d1,inset 0 1px #ffffff14}.modal-hdr{padding:12px var(--panel-inset);border-bottom:1px solid #010101;background:linear-gradient(180deg,#3a3a3a,#323232);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}.modal-title{font-size:13px;font-weight:600;color:var(--t1)}.modal-body{padding:14px var(--panel-inset) 16px;background:#2a2a2a}.shortcut-table{width:100%;border-collapse:collapse;font-size:11px}.shortcut-table th{text-align:left;padding:6px 8px;background:#383838;color:var(--t3);font-size:10px;font-weight:600;border-bottom:1px solid #010101}.shortcut-table td{padding:6px 8px;border-top:1px solid #3a3a3a;color:var(--t2)}.shortcut-table td:last-child{text-align:right;font-family:Consolas,monospace}#toast{position:fixed;bottom:32px;left:50%;transform:translate(-50%);background:#323232;border:1px solid #010101;border-radius:3px;padding:8px 18px;font-size:12px;color:var(--t1);z-index:9999;opacity:0;transition:opacity .2s;pointer-events:none;box-shadow:0 8px 32px #0000008c;white-space:nowrap;max-width:90vw}#toast.show{opacity:1}.mobile-fab{display:none;position:absolute;bottom:40px;width:40px;height:40px;background:#3a3a3a;border:1px solid #1a1a1a;border-radius:50%;align-items:center;justify-content:center;cursor:pointer;z-index:50;color:var(--t2);box-shadow:0 4px 16px #0006}#mob-right-fab{right:8px}#mob-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0000008c;z-index:70;display:none}#mob-backdrop.show{display:block}.btn:focus-visible,.nav-btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.inp:focus-visible{outline:2px solid var(--accent);outline-offset:0}@media(max-width:1100px){:root{--lw:252px;--rw:260px}#logo-text{display:none}#conversion-rail{width:min(500px,calc(100vw - var(--lw) - var(--rw) - 56px))}}@media(max-width:768px){:root{--header-h:28px;--toolbar-h:28px;--footer-h:20px;--thumb-size:80px;--thumb-cell:80px}#main{flex-direction:column;overflow:hidden}#left-panel{position:relative;width:100%!important;max-width:none!important;height:auto;max-height:min(46vh,320px);flex-shrink:0;border-right:none;border-bottom:1px solid #010101;transform:none!important;z-index:auto}#viewport{flex:1;min-height:0}.thumb-list{gap:10px;padding:12px}#right-panel{position:absolute;top:0;right:0;height:100%;transform:translate(100%);transition:transform .2s ease;width:260px!important;z-index:80}#right-panel.mobile-open{transform:translate(0)}#right-tab{display:none}.mobile-fab{display:flex}.tb-dimensions{display:none}#conversion-rail{width:calc(100vw - 32px);flex-direction:column}.flow-arrow{width:100%;height:22px;transform:rotate(90deg)}}