.signup-section {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f9f9f9;
    padding: 20px;
}

.signup-card {
    width: 600px;
    padding: 30px;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.signup-card h1 {
    font-size: 32px;
    color: #31B1B8;
    margin-bottom: 20px;
}

.terms-box {
    background-color: #eef7f8;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: left;
    font-size: 14px;
    color: #555;
    line-height: 1.6;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.input-group input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
}

.dup-check-btn {
    padding: 10px 15px;
    background-color: #31B1B8;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.dup-check-btn:hover {
    background-color: #27858A;
}

input[type="password"],
input[type="tel"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
}

.terms-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 15px 0;
    font-size: 14px;
}

.terms-checkbox input {
    margin-right: 10px;
}

.signup-btn {
    width: 100%;
    padding: 12px;
    background-color: #31B1B8;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.signup-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.signup-btn:hover:enabled {
    background-color: #27858A;
}

.login-prompt {
    margin-top: 15px;
    font-size: 14px;
    color: #555;
}

.login-prompt a {
    color: #31B1B8;
    text-decoration: none;
    font-weight: bold;
}

.login-prompt a:hover {
    text-decoration: underline;
}

.popup-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.popup {
    background: white;
    padding: 30px;
    border-radius: 12px;
    width: 400px;
    text-align: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.popup h2 {
    color: #31B1B8;
    margin-bottom: 10px;
}

.popup p {
    color: #333;
    margin-bottom: 20px;
}

.popup-close {
    padding: 10px 20px;
    background-color: #31B1B8;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.popup-close:hover {
    background-color: #27858A;
}