* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}
body {
    background: #3f76f6;
    color: #fff;
}
.container {
    max-width: 420px;
    margin: auto;
    padding: 20px;
    text-align: center;
}
.logo {
    margin-top: 10px;
}
.logo img {
    width: 60px;
}
.logo p {
    font-size: 14px;
    opacity: 0.9;
    margin-top: 5px;
}
h1 {
    font-size: 28px;
    margin: 25px 0;
    line-height: 1.3;
}
.card {
    position: relative;
}
.card img {
    width: 100%;
    display: block;
}
.card-buttons {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    width: 72%;
}
.btn {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border-radius: 22px;
    border: none;
    background: #ffd77a;
    color: #000;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}
.btn:hover {
    background: #ffcc55;
}
.footer {
    margin-top: 25px;
    font-size: 13px;
    opacity: 0.9;
}
#loading-screen {
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    top: 0;
    left: 0;
    z-index: 9999;
    display: flex;
    opacity: 0;
    visibility: hidden;
    justify-content: center;
    align-items: center;
    transition: 0.4s;
}
#loading-screen.show {
    opacity: 1;
    visibility: visible;
}
.loader-box {
    text-align: center;
}
.loader-box img {
    width: 90px;
    margin-bottom: 20px;
    animation: pulse 1.5s infinite;
}
.spinner {
    border: 5px solid #333;
    border-top: 5px solid #ffd77a;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    margin: auto;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    100% {
        transform: rotate(360deg);
    }
}
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}