@media screen and (max-width: 768px) {
    

    .main-form {
        width: 90%;
        margin: 60px auto 0 auto;
        padding: 20px 25px 35px 25px;
        border-radius: 8px;
    }
    

    .web-small-icon {
        width: 25%;
        min-width: 140px;
        max-width: 220px;
        margin: 0 auto 30px auto;
    }
    

    .input-container {
        position: relative;
        margin-bottom: 20px;
    }
    
    input {
        width: 100%;
        padding: 30px 10px 10px 10px;
        font-size: 16px; /* Prevents zoom on iOS */
        border: .0625rem solid #9da3a6;
        border-radius: 4px;
        box-sizing: border-box;
    }
    
    label {
        position: absolute;
        top: 50%;
        left: 10px;
        transform: translateY(-50%);
        font-size: 14px;
        color: #6c7378;
        pointer-events: none;
        transition: 0.3s ease-out;
    }
    
    input:focus + label,
    input:not(:placeholder-shown) + label {
        top: 13px;
        font-size: 12px;
        color: #6c7378;
        transform: translateY(-50%);
        margin-top: 0;
    }
    

    .flex-line .input-container.inline-block {
        position: relative;
        display: block;
        width: 100%;
        margin-bottom: 20px;
        vertical-align: top;
        margin-left: 0;
        padding-left: 0;
        box-sizing: border-box;
    }
    
    .flex-line .input-container.inline-block.marg-left {
        margin-left: 0;
    }
    
    /* Make flex-line behave like regular input containers */
    .flex-line {
        display: block;
        width: 100%;
        margin-left: 0;
        padding-left: 0;
    }
    

    .input-container,
    .flex-line .input-container {
        margin-left: 0;
        padding-left: 0;
        box-sizing: border-box;
    }
    

    .enable-btn, .cancel-btn {
        font-size: 16px;
        min-height: 44px;
        padding: 14px 24px;
        border-radius: 22px;
    }
    

    .main-form a {
        font-size: 16px;
    }
    
    /* Header text */
    h1 {
        font-size: 24px;
        margin: 15px 0;
    }
    
    /* User value display */
    #u-value {
        font-size: 15px;
        padding-right: 5px;
    }
    
    /* Footer adjustments */
    footer {
        margin-top: 20vh;
        padding: 12px 0px;
    }
    
    .flex-line {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }
    
    footer span {
        font-size: 11px;
        margin-right: 0;
        margin-bottom: 5px;
        text-align: center;
    }
    
    /* Provider icons responsive */
    .blog-gl-server-icon,
    .blog-yh-server-icon,
    .blog-ht-server-icon,
    .normal-prov-icon {
        width: 25%;
        margin: 30px auto 35px auto;
        height: 50px;
    }
    
    /* Middle bar */
    .middle-bar {
        margin-top: 6%;
        margin-bottom: 3%;
    }
    
    .middle-bar span {
        font-size: 14px;
    }
}

/* Tablet adjustments */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    
    .main-form {
        width: 50%;
        margin: 100px auto 0 auto;
        padding: 25px 35px 45px 35px;
    }
    
    .web-small-icon {
        width: 20%;
        min-width: 120px;
        max-width: 200px;
    }
    
    input {
        font-size: 15px;
    }
    
    .enable-btn, .cancel-btn {
        font-size: 17px;
    }
    
    .main-form a {
        font-size: 17px;
    }
    
    h1 {
        font-size: 28px;
    }
    
    footer {
        margin-top: 25vh;
    }
}

/* Large screens - maintain original design */
@media screen and (min-width: 1025px) {
    
    /* PayPal logo - ensure consistent sizing on large screens */
    .web-small-icon {
        width: 16%;
        min-width: 110px;
        max-width: 180px;
    }
    
    /* Ensure form doesn't get too wide on very large screens */
    .main-form {
        max-width: 500px;
    }
}

/* Landscape mobile adjustments */
@media screen and (max-width: 768px) and (orientation: landscape) {
    
    .main-form {
        margin: 30px auto 0 auto;
        padding: 15px 25px 25px 25px;
    }
    
    .web-small-icon {
        margin: 0 auto 20px auto;
    }
    
    footer {
        margin-top: 10vh;
    }
    
    h1 {
        font-size: 22px;
        margin: 10px 0;
    }
}

/* Very small screens (iPhone SE, etc.) */
@media screen and (max-width: 375px) {
    
    .main-form {
        width: 95%;
        padding: 15px 20px 30px 20px;
        margin: 40px auto 0 auto;
    }
    
    .web-small-icon {
        width: 28%;
        min-width: 130px;
        max-width: 220px;
        margin: 0 auto 25px auto;
    }
    
    input {
        padding: 22px 8px 6px 8px;
        font-size: 16px;
    }
    
    .enable-btn, .cancel-btn {
        font-size: 15px;
        min-height: 42px;
        padding: 12px 20px;
    }
    
    h1 {
        font-size: 22px;
    }
    
    footer span {
        font-size: 10px;
    }
}

/* High DPI displays */
@media screen and (-webkit-min-device-pixel-ratio: 2), 
       screen and (min-resolution: 192dpi) {
    
    .web-small-icon {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    
    body {
        background-color: #1a1a1a;
        color: #ffffff;
    }
    
    .main-form {
        background-color: #2d2d2d;
        border-color: #404040;
    }
    
    input {
        background-color: #3a3a3a;
        border-color: #555555;
        color: #ffffff;
    }
    
    label {
        color: #cccccc;
    }
    
    footer {
        background-color: #2a2a2a;
    }
    
    footer span {
        color: #aaaaaa;
    }
}