body{background-color:#f9f9f9;margin:0;padding:0;font-family:Arial,Helvetica,sans-serif}.merger-container{flex-direction:column;align-items:center;margin-top:5rem;padding:0 1rem;display:flex}.tagline{text-align:center;margin-bottom:2rem}.tagline h3{color:#0d47a1;font-size:2rem;font-weight:800}.tagline p{color:#504e4e;margin-top:.5rem;font-size:1.2rem;font-weight:600}.file-upload{text-align:center;background-color:#fff;border:2px dashed #aaa;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;width:100%;max-width:500px;height:15rem;margin-bottom:1rem;transition:background-color .2s,border-color .2s;display:flex}.file-upload:hover{background-color:#f0f4ff;border-color:#0d47a1}.file-upload.drag-active{background-color:#0d47a11a}.file-input{display:none}.custom-text{color:#fff;cursor:pointer;-webkit-user-select:none;user-select:none;background-color:#e5322d;border-radius:8px;margin-bottom:.5rem;padding:1rem 2.5rem;font-size:1rem;font-weight:600;transition:background-color .2s}.custom-text:hover{background-color:#b70000}.file-upload span{color:#555;margin-top:.5rem;font-size:.9rem}.message{color:#e5322d;text-align:center;margin-top:10px;font-size:14px;font-weight:600;display:block}.file-list{text-align:center;background:#fff;border-radius:10px;width:100%;max-width:600px;margin:20px auto;padding:15px 20px;box-shadow:0 2px 10px #00000014}.file-list h4{color:#333;margin-bottom:10px;font-weight:700}.file-item{border-bottom:1px solid #eee;flex-wrap:wrap;align-items:center;gap:12px;padding:8px 0;display:flex}.file-item:last-child{border-bottom:none}.file-index{font-weight:700}.file-name{text-overflow:ellipsis;white-space:nowrap;text-align:center;flex:1;max-width:250px;overflow:hidden}.file-actions{align-items:center;gap:6px;margin-left:auto;display:flex}.file-actions button{cursor:pointer;background:#f5f5f5;border:1px solid #ccc;border-radius:4px;padding:4px 8px;font-size:14px;transition:all .2s}.file-actions button:hover{background:#ddd}.remove-btn{color:#e5322d;cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:18px}.remove-btn:hover{transform:scale(1.2)}.merge-btn{color:#fff;cursor:pointer;background-color:#e5322d;border:none;border-radius:6px;margin:25px auto;padding:12px 30px;font-size:16px;transition:background .2s,transform .2s;display:block}.merge-btn:hover:enabled{background-color:#b70000;transform:scale(1.03)}.merge-btn:disabled{cursor:not-allowed;background-color:#ccc}.size-selector{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;margin:20px auto;display:flex}.size-selector input,.size-selector select{border:1px solid #ccc;border-radius:6px;padding:6px 10px;font-size:14px}.content{background:#fff;border-radius:12px;max-width:900px;margin:3rem auto;padding:20px;box-shadow:0 4px 15px #0000000d}.content h2{color:#232425;margin-top:1.5rem;margin-bottom:1rem;font-size:1.8rem;font-weight:700}.content p,.content ul li{color:#555;margin-bottom:1rem;font-size:1rem;line-height:1.7}.content ul{padding-left:1.5rem;list-style-type:disc}.faq-section{background:#fff;border-radius:12px;max-width:900px;margin:4rem auto;padding:30px 20px;box-shadow:0 4px 15px #0000000d}.faq-section h2{text-align:center;color:#343434;margin-bottom:30px;font-size:2rem;font-weight:800}.faq-item{border-bottom:1px solid #eee;padding:16px 0}.faq-item:last-child{border-bottom:none}.faq-question{text-align:left;color:#021132;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;width:100%;font-size:1.05rem;font-weight:700;transition:color .3s;display:flex}.faq-question:hover{color:#e5322d}.faq-icon{font-size:1.4rem;transition:transform .3s}.faq-answer{max-height:0;transition:max-height .35s;overflow:hidden}.faq-answer p{color:#555;margin-top:12px;font-size:.95rem;line-height:1.6}.faq-item.active .faq-answer{max-height:300px}.faq-item.active .faq-icon{transform:rotate(45deg)}.adsense{text-align:center;width:100%;margin:20px 0}@media screen and (max-width:768px){.file-upload{height:12rem}.custom-text{padding:.8rem 2rem;font-size:.9rem}.file-name{max-width:150px;font-size:.9rem}.merge-btn{padding:10px 25px;font-size:14px}}@media screen and (max-width:480px){.file-upload{height:10rem}.file-name{max-width:120px;font-size:.85rem}.custom-text{padding:.6rem 1.5rem;font-size:.85rem}.merge-btn{padding:8px 20px;font-size:13px}.faq-section h2{font-size:1.6rem}.content h2{font-size:1.5rem}}