body {
    background-color: #000;
    margin: 0;
    font-family: Arial, sans-serif;
}

main {
    background-color: #fff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 400px;
    height: auto;
    min-height: 500px;
    padding: 40px;
    box-sizing: border-box;
    border: 1px solid #c7bbbb;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    margin: 20px;
    gap: 30px;
}

.container h1 {
    font-size: 32px;
    font-weight: 600;
    margin: 0 0 20px 0;
    color: #4285f4;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
    width: 100%;
}

.container h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 25%;
    width: 50%;
    height: 2px;
    background: linear-gradient(to right, transparent, #4285f4, transparent);
}

.form-sup-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 0 0 20px 0;
    width: 100%;
}

.form-sup-container a {
    text-decoration: none;
    color: #fff;
    width: 100%;
    padding: 15px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
    height: 50px;
    box-sizing: border-box;
}

.form-sup-container a:first-child {
    background-color: #4285f4;
}

.form-sup-container a:last-child {
    background-color: #1877f2;
}

.form-sup-container a i {
    font-size: 18px;
    margin-right: 8px;
}

.form-sup-container a:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.form-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
    position: relative;
    width: 100%;
}

.input-group {
    position: relative;
    width: 100%;
    margin-bottom: 10px;
}

.form-container input {
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    width: 100%;
    box-sizing: border-box;
    font-size: 16px;
    transition: all 0.3s ease;
    height: 50px;
}

.form-container input:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.form-container label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    transition: all 0.3s ease;
    pointer-events: none;
    background: #fff;
    padding: 0 5px;
}

.form-container input:focus + label,
.form-container input:not(:placeholder-shown) + label {
    top: 0;
    font-size: 12px;
    color: #4285f4;
}

.form-container button {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(52, 152, 219, 0.3);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 14px;
    cursor: pointer;
    width: 100%;
    height: 45px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-container button:hover {
    background: rgba(52, 152, 219, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

.form-container p {
    text-align: center;
    margin-top: 25px;
    color: #666;
    font-size: 14px;
}

.form-container p a {
    color: #4285f4;
    text-decoration: none;
    font-weight: 600;
    position: relative;
    padding: 2px 4px;
    transition: all 0.3s ease;
}

.form-container p a:hover {
    color: #34a853;
    text-decoration: none;
}

.form-container p a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, #4285f4, #34a853);
    bottom: -2px;
    left: 0;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.form-container p a:hover::after {
    transform: scaleX(1);
}

@media (max-width: 480px) {
    .container {
        margin: 15px;
        padding: 30px;
        min-height: 520px;
        gap: 25px;
    }

    .form-sup-container,
    .form-container {
        max-width: 100%;
    }

    .form-sup-container a,
    .form-container input,
    .form-container button {
        height: 45px;
    }
}