:root{--bg:#f5f8fc;--panel:#fff;--text:#111827;--muted:#667085;--line:#e3e9f1;--soft:#eef5ff;--primary:#0868f7;--primary2:#0056d9;--success:#0f9f59;--danger:#d92d20;--shadow:0 8px 28px rgba(16,24,40,.07)}[data-theme=dark]{--bg:#081321;--panel:#0f1d2d;--text:#f5f8fc;--muted:#a5b4c8;--line:#22364d;--soft:#13283e;--primary:#2b7eff;--primary2:#1267ec;--success:#20c477;--danger:#ff655d;--shadow:none}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font-family:"Cairo",Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.site-header{height:78px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 max(22px,calc((100vw - 1480px)/2));gap:18px;position:sticky;top:0;z-index:30}.brand{display:flex;align-items:center;gap:12px}.logo{width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,#1183ff,#0558dc);color:#fff;display:grid;place-items:center;font-size:23px;box-shadow:0 8px 20px rgba(8,104,247,.2)}.brand b{display:block;font-size:21px}.brand small{display:block;color:var(--muted);margin-top:2px}.header-controls{margin-right:auto;display:flex;gap:8px}.control-btn{height:40px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--text);padding:0 13px;font:inherit;font-weight:700;cursor:pointer}.app-shell{max-width:1480px;margin:0 auto;padding:20px}.tool-layout{display:grid;grid-template-columns:290px minmax(0,1fr) 330px;gap:16px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.upload-card,.settings{padding:16px;align-self:start}.drop-zone{border:2px dashed #cfd9e8;border-radius:14px;padding:24px 14px;text-align:center;min-height:250px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;outline:none}.drop-zone.drag{border-color:var(--primary);background:var(--soft)}.upload-icon{font-size:38px;color:var(--primary)}.drop-zone strong{font-size:17px}.drop-zone span{color:var(--muted);font-size:12px;line-height:1.7}.btn{border:0;border-radius:10px;padding:12px 16px;font:inherit;font-weight:800;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;cursor:pointer}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}.btn.secondary{background:var(--soft);color:var(--text);border:1px solid var(--line)}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.success{background:var(--success);color:#fff}.btn.large{font-size:16px}.file-card{display:grid;grid-template-columns:54px 1fr auto;align-items:center;gap:10px;margin-top:14px;padding:10px;border:1px solid var(--line);border-radius:12px}.file-thumb{width:54px;height:42px;background:var(--soft);border-radius:8px;display:grid;place-items:center;color:var(--primary)}.file-card b,.file-card small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.file-card small{color:var(--muted);font-size:11px;margin-top:3px}.icon-button{width:32px;height:32px;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:8px;cursor:pointer}.privacy-mini{font-size:11px;color:var(--muted);padding:14px 4px 2px;text-align:center}.editor{padding:16px;min-width:0}.video-wrap{position:relative;background:#05080c;border-radius:12px;overflow:hidden;aspect-ratio:16/9}.video-wrap video{width:100%;height:100%;object-fit:contain;display:block}.empty-preview{position:absolute;inset:0;display:grid;place-content:center;text-align:center;color:#9aa7b8;pointer-events:none}.empty-preview span{font-size:42px}.empty-preview p{margin:8px}.timeline{margin-top:14px}.thumb-strip{height:70px;border:1px solid var(--line);border-radius:9px;overflow:hidden;display:grid;grid-template-columns:repeat(8,1fr);background:var(--soft)}.thumb-strip canvas{width:100%;height:70px;object-fit:cover}.range-wrap{position:relative;height:36px;margin-top:-53px;pointer-events:none}.range-wrap input[type=range]{position:absolute;inset:0;width:100%;appearance:none;background:transparent;pointer-events:none}.range-wrap input[type=range]::-webkit-slider-thumb{appearance:none;width:20px;height:64px;border-radius:7px;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 1px var(--primary);pointer-events:auto;cursor:ew-resize}.range-wrap input[type=range]::-moz-range-thumb{width:16px;height:58px;border-radius:7px;background:var(--primary);border:3px solid #fff;pointer-events:auto;cursor:ew-resize}.time-grid{display:grid;grid-template-columns:1fr .72fr 1fr;gap:12px;margin-top:34px}.time-box,.duration-box{border:1px solid var(--line);border-radius:12px;padding:12px}.time-box label,.duration-box label{display:block;color:var(--muted);font-size:12px;margin-bottom:7px}.duration-box{text-align:center}.duration-box strong{font-size:24px}.time-controls{display:grid;grid-template-columns:32px 1fr 32px 36px;gap:5px}.time-controls input,.time-controls button{height:34px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--text);text-align:center;font:inherit}.time-controls button{cursor:pointer}.settings{display:grid;gap:12px}.settings h2{margin:0;font-size:18px}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mode-card{border:1px solid var(--line);border-radius:12px;padding:12px;cursor:pointer;display:grid;gap:5px}.mode-card.selected{border-color:var(--primary);box-shadow:0 0 0 2px rgba(8,104,247,.08)}.mode-card input{display:none}.mode-card b{font-size:13px}.mode-card span{font-size:10px;color:var(--muted);line-height:1.5}.output-info{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0}.output-info h3{font-size:14px;margin:0 0 8px}.output-info dl{margin:0}.output-info dl div{display:flex;justify-content:space-between;padding:6px 0;font-size:12px}.output-info dt{color:var(--muted)}.output-info dd{margin:0;font-weight:700}.progress-box,.result-box,.error-box{padding:12px;border-radius:12px;background:var(--soft)}.progress-head{display:flex;justify-content:space-between;font-size:12px;font-weight:700}.progress-track{height:8px;background:var(--line);border-radius:99px;overflow:hidden;margin:9px 0}.progress-track i{display:block;height:100%;width:0;background:var(--primary);transition:width .15s}.progress-box small{color:var(--muted);font-size:10px}.result-box{background:rgba(15,159,89,.1);display:grid;gap:10px}.error-box{background:rgba(217,45,32,.1);color:var(--danger);font-size:12px;line-height:1.6}.privacy-banner{margin-top:16px;background:rgba(15,159,89,.09);border:1px solid rgba(15,159,89,.18);border-radius:14px;padding:14px 18px;display:flex;gap:10px;align-items:center}.privacy-banner strong,.privacy-banner span{display:block}.privacy-banner span{font-size:12px;color:var(--muted);margin-top:3px}.site-footer{max-width:1480px;margin:0 auto;padding:18px 20px 28px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;color:var(--muted);font-size:12px;align-items:center}.site-footer>div:not(.footer-links-grid){display:flex;gap:10px;align-items:center}.footer-center{justify-content:center}.footer-developer{justify-content:flex-start}.site-footer a{color:var(--primary);font-weight:700;text-decoration:none}.footer-links-grid{grid-column:1/-1;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;padding-top:4px}.footer-link-card{min-height:48px;border:1px solid var(--line);background:var(--panel);border-radius:12px;padding:11px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease,background .18s ease}.footer-link-card:hover{transform:translateY(-2px);border-color:var(--primary);background:var(--soft)}.footer-link-card b{font-size:14px}.version{background:var(--soft);padding:4px 8px;border-radius:7px}.maintenance{max-width:680px;margin:80px auto;padding:40px;text-align:center;background:var(--panel);border:1px solid var(--line);border-radius:20px}.maintenance-icon{font-size:45px}.ad-slot{max-width:1480px;margin:12px auto;padding:0 20px}.hidden{display:none!important}@media(max-width:1100px){.tool-layout{grid-template-columns:240px minmax(0,1fr)}.settings{grid-column:1/-1;grid-template-columns:1fr 1fr}.settings h2,.output-info,.progress-box,.result-box,.error-box{grid-column:1/-1}.settings>.btn{min-height:46px}}@media(max-width:760px){.site-header{height:auto;padding:10px 14px}.brand b{font-size:15px}.brand small{font-size:10px}.logo{width:38px;height:38px}.control-btn{padding:0 9px}.app-shell{padding:10px}.tool-layout{grid-template-columns:1fr}.upload-card{order:1}.editor{order:2}.settings{order:3;grid-column:auto;grid-template-columns:1fr}.drop-zone{min-height:160px}.time-grid{grid-template-columns:1fr 1fr}.duration-box{grid-column:1/-1;grid-row:2}.site-footer{grid-template-columns:1fr;text-align:center}.site-footer>div:not(.footer-links-grid),.footer-center,.footer-developer{justify-content:center}.thumb-strip{height:56px}.thumb-strip canvas{height:56px}.range-wrap{margin-top:-47px}.header-controls{gap:5px}.mode-grid{grid-template-columns:1fr 1fr}}