body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: white;
}

/* Container */
.container {
    max-width: 600px;
    margin: auto;
    padding: 20px 16px;
    text-align: center;
}

/* Headings */
h1 {
    font-size: 26px;
    margin-bottom: 20px;
}

h2 {
    font-size: 22px;
    margin-bottom: 15px;
}

h3 {
    font-size: 18px;
    margin: 10px 0;
}

/* Input */
input {
    width: 100%;
    max-width: 100%;
    padding: 16px;
    font-size: 16px;
    border-radius: 10px;
    border: none;
    outline: none;
    display: block;
}


/* Button */
button {
    width: 100%;
    padding: 16px;
    font-size: 18px;
    background: #22c55e;
    border: none;
    border-radius: 10px;
    color: black;
    font-weight: bold;
}

/* Card */
.card {
    background: #1e293b;
    padding: 16px;
    border-radius: 14px;
    margin-bottom: 15px;
}

.card img {
    width: 100%;
    border-radius: 10px;
}

/* Buttons (links) */
.btn {
    display: block;
    width: 100%;
    padding: 16px;
    margin-top: 12px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 17px;
    font-weight: bold;
}

.green {
    background: #22c55e;
    color: black;
}

.red {
    background: #ef4444;
    color: white;
}

/* Loader */
.loader {
    border: 5px solid #334155;
    border-top: 5px solid #22c55e;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    margin: 25px auto;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* Ads spacing */
.ads {
    margin-top: 25px;
}

/* Mobile Enhancements */
@media (max-width: 480px) {
    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
    h3 { font-size: 17px; }

    .btn, button {
        font-size: 18px;
        padding: 18px;
    }
}