:root{--bg-color:transparent;--card-bg:#ffffffbf;--text-primary:#0f172a;--text-secondary:#475569;--accent:#3b82f6;--accent-hover:#2563eb;--success:#10b981;--border-color:#0000001a}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-primary);-webkit-user-select:none;user-select:none;background-color:#0000;justify-content:center;align-items:center;min-height:100vh;font-family:Inter,sans-serif;display:flex}input,textarea{-webkit-user-select:text;user-select:text}.container{width:100%;max-width:600px;padding:2rem}header{text-align:center;margin-bottom:3rem}header h1{background:linear-gradient(135deg,#60a5fa,#3b82f6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:.5rem;font-size:2.5rem;font-weight:600}header p{color:var(--text-secondary);font-size:1.1rem}.card{-webkit-backdrop-filter:blur(20px);background:#fff6;border:1px solid #fff9;border-radius:16px;width:100%;max-width:500px;margin:0 auto;padding:2.5rem;box-shadow:0 8px 32px #0000001a}.card.hidden{display:none}.drop-zone{text-align:center;cursor:pointer;background:#fff3;border:2px dashed #fffc;border-radius:12px;padding:3rem 2rem;transition:all .3s}.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:#ffffff80}.drop-zone .icon{color:#4e6d87;margin-bottom:1rem}.drop-zone p{color:var(--text-secondary);font-size:1.2rem}.highlight{color:#4e6d87;font-weight:600}.hidden{display:none!important}.file-info{justify-content:space-between;margin-bottom:1rem;font-weight:500;display:flex}.progress-bar-container{background:#ffffff1a;border-radius:4px;outline:1px solid #0003;height:8px;margin-bottom:1rem;overflow:hidden;box-shadow:0 4px 6px #0000001a}.progress-bar{background-color:#4d6d86;background-image:linear-gradient(90deg,#ffffff26 25%,#0000 25% 50%,#ffffff26 50% 75%,#0000 75%,#0000);background-size:20px 20px;width:0%;height:100%;box-shadow:inset 0 0 0 1px #0000001a}#progress-text{text-align:right;color:var(--text-secondary);font-size:.9rem}.link-box{gap:.5rem;margin-top:1.5rem;display:flex}.link-box input{color:var(--text-primary);background:#ffffff4d;border:1px solid #fff9;border-radius:8px;outline:none;flex:1;padding:.75rem 1rem;font-family:inherit;font-size:1rem}.link-box button{-webkit-backdrop-filter:blur(10px);color:#4e6d87;cursor:pointer;background:#4e6d8733;border:1px solid #4e6d8766;border-radius:8px;padding:.75rem 1.5rem;font-weight:600;transition:all .3s}.link-box button:hover{background:#4e6d874d;border-color:#4e6d8799}#download-btn{-webkit-backdrop-filter:blur(10px);color:#4e6d87;cursor:pointer;background:#4e6d8733;border:1px solid #4e6d8766;border-radius:8px;width:100%;margin-top:1.5rem;padding:1rem;font-size:1.1rem;font-weight:600;transition:all .3s}#download-btn:hover{background:#4e6d874d;border-color:#4e6d8799}.action-btn{-webkit-backdrop-filter:blur(10px);width:100%;color:var(--accent);cursor:pointer;background:#3b82f633;border:1px solid #3b82f666;border-radius:8px;margin-top:1rem;padding:1rem;font-weight:600;transition:all .3s}.action-btn:hover{background:#3b82f64d;border-color:#3b82f699}.logo-header{text-align:center;flex-direction:column;justify-content:center;align-items:center;width:100%;margin-bottom:2rem;display:flex}.main-logo{max-width:250px;height:auto;margin:0 auto;display:block}.powered-by{color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;align-items:center;width:100%;margin-top:.5rem;font-size:.7rem;text-decoration:none;transition:opacity .2s;display:flex;transform:translate(10px)}.powered-by:hover{opacity:.8}.powered-text{text-align:right;flex:1;padding-right:.5rem}.powered-logo{text-align:left;flex:1;padding-left:.5rem}.sub-logo{filter:brightness(0);max-width:38px;height:auto;display:block}.top-right-nav{z-index:100;gap:1rem;display:flex;position:fixed;top:20px;right:20px}.glass-nav{cursor:pointer;color:var(--text-primary);-webkit-backdrop-filter:blur(15px);background:#fff3;border:1px solid #fff6;border-radius:30px;align-items:center;padding:.5rem 1rem;font-family:inherit;font-size:.9rem;font-weight:500;transition:all .3s;display:flex;box-shadow:0 4px 20px #0000000d}.glass-nav:hover{background:#fff6;transform:translateY(-2px);box-shadow:0 6px 25px #00000014}.lang-btn{padding:.5rem .75rem;font-weight:600}.history-panel{-webkit-backdrop-filter:blur(30px);z-index:101;transform-origin:100% 0;opacity:1;pointer-events:auto;background:#fff3;border:1px solid #ffffff80;border-radius:20px;flex-direction:column;width:340px;max-height:450px;padding:1.5rem;transition:all .4s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:70px;right:20px;transform:translateY(0)scale(1);box-shadow:0 15px 35px #0000001a,inset 0 0 0 1px #fff3}.history-panel.closed{opacity:0;pointer-events:none;transform:translateY(-15px)scale(.9)}.history-header{justify-content:space-between;align-items:center;margin-bottom:2rem;display:flex}.history-header h3{margin:0;font-size:1.2rem}.icon-btn{cursor:pointer;color:var(--text-secondary);background:0 0;border:none;font-size:2rem;line-height:1}.history-list{flex-direction:column;flex:1;gap:1rem;display:flex;overflow-y:auto}.history-item{background:#ffffff4d;border:1px solid #fff6;border-radius:12px;flex-direction:column;gap:.5rem;padding:1rem;transition:background .2s;display:flex}.history-item:hover{background:#ffffff80}.history-item-name{word-break:break-all;font-size:.9rem;font-weight:600}.history-item-date{color:var(--text-secondary);font-size:.75rem}.history-item-link{color:var(--accent);font-size:.85rem;text-decoration:none}.clear-btn{color:#ef4444;cursor:pointer;background:#ef44441a;border:1px solid #ef44444d;border-radius:12px;margin-top:1rem;padding:.75rem;font-weight:500;transition:all .3s}.clear-btn:hover{background:#ef444433;border-color:#ef444480}h2{margin-bottom:1rem;font-size:1.5rem}.expiry-options{gap:.5rem;width:100%;display:flex}.expiry-btn{color:var(--text-primary);cursor:pointer;-webkit-backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #ffffff4d;border-radius:8px;flex:1;padding:.5rem 0;font-family:inherit;font-size:.85rem;font-weight:500;transition:all .2s}.expiry-btn:hover{background:#fff3;border-color:#ffffff80}.expiry-btn.active{color:#fff;background:#546c84cc;border-color:#546c84;font-weight:600;box-shadow:0 0 10px #546c8466}.multi-file-list{background:#0000001a;border-radius:10px;flex-direction:column;gap:.5rem;max-height:200px;margin-top:1rem;padding:.5rem;display:flex;overflow-y:auto}.multi-file-item{background:#ffffff0d;border-radius:8px;justify-content:space-between;align-items:center;padding:.5rem 1rem;font-size:.9rem;transition:background .3s;display:flex}.multi-file-item:hover{background:#ffffff1a}.multi-file-item .file-name{white-space:nowrap;text-overflow:ellipsis;max-width:70%;overflow:hidden}.multi-file-item .file-size{color:var(--text-secondary);font-size:.8rem}.multi-file-item .remove-btn{color:#ff6b6b;cursor:pointer;background:#f003;border:none;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;transition:background .3s;display:flex}.multi-file-item .remove-btn:hover{color:#fff;background:#ff000080}.multi-file-item .dl-single-btn{color:var(--text-primary);border:1px solid var(--border-color);cursor:pointer;background:#ffffff1a;border-radius:4px;padding:4px 8px;font-size:.8rem;transition:background .3s}.multi-file-item .dl-single-btn:hover{background:var(--primary-color);border-color:var(--primary-color)}