.preview-card{background-color:#fff;border-radius:15px;border:1px solid gray;padding:15px;margin:0 10px;display:flex;flex-direction:column;align-items:center}.class-icon{width:25px;height:25px}.class-icon,.modal-overlay{display:flex;justify-content:center;align-items:center}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:1000}.container{margin:20px auto;box-shadow:0 0 40px #0000008a;border-radius:5px;overflow:hidden;padding-top:56.25%;position:static!important}.modal-content{background:#fff;padding:24px;border-radius:12px;max-width:90%;max-height:80vh;overflow-y:auto;width:600px;position:relative;text-align:center;box-shadow:0 10px 25px rgba(0,0,0,.2)}.modal-close{position:absolute;top:5px;right:10px;background:transparent;border:none;font-size:20px;cursor:pointer;color:#666}.modal-close:hover{color:#000}.modal-buttons{display:flex;justify-content:space-between;margin-top:20px;gap:10px}.btn{flex:1;padding:10px;border:none;border-radius:8px;font-weight:700;cursor:pointer;font-size:14px}.btn.cancel{background-color:#eee;color:#333}.btn.confirm{background-color:#007bff;color:#fff}.btn-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap;height:100%}.btns{width:250px;padding:10px;height:100%;color:#fff;background-color:#16384c;border-radius:10px;cursor:pointer}.drop-zone{border:2px dashed #ccc;padding:30px;border-radius:10px;cursor:pointer;margin:20px 0;position:relative;color:#666}.dark .drop-zone{border-color:#4b5563;background-color:rgba(55,65,81,.3);color:#9ca3af}.file-input{position:absolute;width:100%;height:100%;opacity:0;cursor:pointer;top:0;left:0}.btn.upload{background-color:#16384c;color:#fff;border:none;padding:10px;border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;width:50%}.btn.remove{background-color:#333;color:#fff}.btn.remove:disabled,.btn.upload:disabled{background-color:#ccc;cursor:not-allowed}.center-icon{width:100%;display:flex;justify-content:center;align-items:center}.dark .center-icon{color:#9ca3af}@media (max-width:769px){.w{width:100%}}