.auth-section {
    max-width: 450px;
    margin: 80px auto;
    padding: 40px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    font-family: 'Inter', sans-serif;
}

.auth-section h1 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: #1a1a1a;
    font-weight: 700;
}

#register-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.auth-section input {
    width: 100%;
    padding: 14px;
    border: 1px solid #e1e1e1;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.auth-section input:focus {
    outline: none;
    border-color: #000;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}


.auth-section button {
    margin-top: 10px;
    padding: 15px;
    background-color: #000;

    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.3s ease;
}

.auth-section button:hover {
    background-color: #333;
    transform: translateY(-2px);
}

.auth-section button:active {
    transform: translateY(0);
}

.auth-section p {
    margin-top: 20px;
    font-size: 0.95rem;
    color: #666;
}

.auth-section a {
    color: #000;
    text-decoration: underline;
    font-weight: 600;
}

.auth-section a:hover {
    color: #555;
}

.auth-section input:invalid:not(:placeholder-shown) {
    border-color: #ff4d4d;
}