body,html,input,button {
    margin: 0;
    padding: 0;
    font-size: 16px;
    z-index: 1;
}

.logo {
    width: 100%;
    height: 240px;
    z-index: -9999;
}

.content-1 {
    margin: 0 20px 0 20px;
    padding: 10px;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    border: 2px solid #2196F3;
}

.content-2 {
    display: none;
    margin: 20px 20px 0 20px;
    padding: 20px;
    height: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    border: 2px solid #2196F3;
}

h2 {
    margin: 0;
    padding: 0;
    font-size: 26px;
    text-align: center;
    color: #2196F3;
}

h3 {
    margin: 0;
    padding: 0;
    font-size: 23px;
    text-align: center;
    color: #00A2E8;
}

p {
    margin: 3px;
    padding: 0;
}

span {
    color:red;
}

input {
    margin: 0px 20px 0 20px;
    padding: 14px;
    width: calc(100% - 40px);
    box-sizing: border-box;
    border-radius: 15px;
    border: 2px solid #2196F3;
    box-sizing: border-box;
}

button {
    margin: 10px 20px 10px 20px;
    padding: 8px;
    width: calc(100% - 40px);
    box-sizing: border-box;
    border-radius: 15px;
    border: none;
    background-color: #00A2E8;
    color: white;
    cursor: pointer;
    border: 2px solid #2196F3;
    font-size: 26px;
}

.add-line {
    display: none;
}

.loading {
    display: none;
    text-align: center;
    padding: 20px;
}

.loading-text {
    color: #2196F3;
    font-size: 18px;
    margin-bottom: 10px;
}

.progress {
    width: 80%;
    height: 20px;
    background-color: #e0e0e0;
    border-radius: 10px;
    margin: 0 auto;
    overflow: hidden;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: #2196F3;
    transition: width 1.5s linear;
}

.pulse {
    animation: pulse-animation 1.5s infinite;
}
@keyframes pulse-animation {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}