.signup-container {
    max-width: 400px;
    margin: 60px auto;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

.signup-container h1 {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.signup-container h1::before,
.signup-container h1::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        rgba(255, 255, 255, 0.5),
        transparent
    );
}

.signup-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group {
    position: relative;
    margin-bottom: 15px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 14px;
    color: #fff;
    transition: all 0.3s ease;
}

.form-group label {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    pointer-events: none;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group input:valid {
    border-color: #4CAF50;
    background: rgba(255, 255, 255, 0.15);
}

.form-group input:focus + label,
.form-group input:valid + label {
    top: -8px;
    left: 8px;
    font-size: 12px;
    padding: 0 4px;
    background: #1a1a1a;
    color: #4CAF50;
}

.signup-button {
    padding: 12px 24px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.signup-button:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 20px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.divider span {
    padding: 0 10px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.google-signin {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}

/* Dark theme compatibility */
.dark-theme .signup-container {
    background: rgba(0, 0, 0, 0.2);
}

.dark-theme .form-group input {
    background: rgba(0, 0, 0, 0.2);
}

.dark-theme .form-group input:focus + label,
.dark-theme .form-group input:valid + label {
    background: #2d2d2d;
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .signup-container {
        max-width: 90%;
        margin: 40px auto;
        padding: 20px;
    }
}

.custom-google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.custom-google-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.custom-google-btn i {
    font-size: 16px;
}

.google-signin {
    display: flex;
    justify-content: center;
    margin-top: 15px;
}