* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body, html {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

.background {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, #0e161c, #200404);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.container {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    margin: auto;
    padding: 20px;
}

.login-box, .welcome-box {
    background: rgba(255, 255, 255, 0.8);
    padding: 40px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
}

.login-box h2, .welcome-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.textbox {
    position: relative;
    margin-bottom: 30px;
}

.textbox i {
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
    color: #333;
}

.textbox input {
    width: 100%;
    padding: 10px 10px 10px 40px;
    border: none;
    border-bottom: 2px solid #333;
    outline: none;
    background: transparent;
    color: #333;
    font-size: 18px;
}

.textbox input::placeholder {
    color: #aaa;
}

.btn {
    width: 100%;
    background: #2980b9;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-size: 18px;
    color: #fff;
    border-radius: 5px;
    transition: background 0.3s;
    text-align: center;
    display: inline-block;
    text-decoration: none;
}

.btn:hover {
    background: #8e44ad;
}

.qr-code {
    position: absolute;
    width: 100px;
    height: 100px;
    background: url('qr-code.png') no-repeat center center;
    background-size: cover;
}

/* Lines */
.background::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.2) 1px,
        transparent 1px,
        transparent 20px
    );
    z-index: 0;
    transition: transform 0.5s;
}

.background::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.2) 1px,
        transparent 1px,
        transparent 20px
    );
    z-index: 0;
    transition: transform 0.5s;
}