/* 模态框基础样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: 10% auto;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--text-color);
}

/* 表单样式 */
.login-form,
.register-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.modal-content h2 {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.login-form input,
.register-form input {
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.login-form input:focus,
.register-form input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
}

.login-form button,
.register-form button {
    padding: 0.8rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-form button:hover,
.register-form button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.2);
}

/* 响应式设计 */
@media (max-width: 480px) {
    .modal-content {
        margin: 20% auto;
        padding: 1.5rem;
    }
}