/* 登录页面专用样式 - 简洁配色 */

body {
    background-color: #f8f9fa; /* 简洁的浅灰背景 */
    min-height: 100vh;
    margin: 0;
    font-family: 'Noto Sans SC', 'Roboto', '微软雅黑', Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 40px 32px 32px 32px;
    width: 360px;
    max-width: 90vw;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.login-logo {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    text-align: center;
}

.login-subtitle {
    font-size: 0.875rem;
    color: #6c757d;
    margin-bottom: 24px;
    text-align: center;
}

.login-form {
    width: 100%;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    font-weight: 500;
    color: #212529;
    margin-bottom: 6px;
    display: block;
    font-size: 0.875rem;
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    font-size: 0.875rem;
    background: #ffffff;
    transition: border-color 0.2s ease;
    box-sizing: border-box;
    font-family: inherit;
}

.form-input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 0.1rem rgba(0, 123, 255, 0.25);
}

.form-input::placeholder {
    color: #adb5bd;
    font-size: 0.875rem;
}

.login-button {
    width: 100%;
    padding: 12px;
    background-color: #007bff;
    color: #ffffff;
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    box-sizing: border-box;
    font-family: inherit;
}

.login-button:hover {
    background-color: #0056b3;
}

.login-button:active {
    background-color: #004085;
}

.login-error {
    color: #dc3545;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    padding: 8px 12px;
    margin-bottom: 16px;
    width: 100%;
    text-align: center;
    font-size: 0.875rem;
    box-sizing: border-box;
}

/* 加载动画 */
.login-button.loading {
    position: relative;
    color: transparent;
}

.login-button.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 500px) {
    .login-container {
        padding: 24px 16px 20px 16px;
        width: 95vw;
        margin: 16px;
    }
    
    .login-title {
        font-size: 1.25rem;
    }
    
    .login-subtitle {
        font-size: 0.8rem;
    }
    
    .form-input {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
    
    .login-button {
        padding: 10px;
        font-size: 0.8rem;
    }
}

@media (max-width: 380px) {
    .login-container {
        padding: 20px 12px 16px 12px;
    }
    
    .login-title {
        font-size: 1.125rem;
    }
    
    .login-logo {
        width: 40px;
        height: 40px;
    }
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
    }
    
    .login-container {
        background: #2d2d2d;
        border-color: #444444;
    }
    
    .login-title {
        color: #ffffff;
    }
    
    .login-subtitle {
        color: #cccccc;
    }
    
    .form-label {
        color: #ffffff;
    }
    
    .form-input {
        background: #3d3d3d;
        border-color: #555555;
        color: #ffffff;
    }
    
    .form-input:focus {
        border-color: #007bff;
    }
}