/**
 * login.css - 登录注册页面样式
 * 
 * 包含：
 * 1. 登录页面布局
 * 2. 表单样式
 * 3. 按钮样式
 */

/* ==================== 页面布局 ==================== */
.login-page {
    display: flex;
    width: 100%;
    height: 100vh;
}

/* 左侧品牌区域 */
.login-brand {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, #16213e 100%);
    color: #ffffff;
    padding: 60px;
}

.brand-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
}

.brand-title {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 12px;
}

.brand-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
}

/* 右侧表单区域 */
.login-form-wrapper {
    width: 480px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 60px;
    background: var(--bg-primary);
}

/* ==================== 表单样式 ==================== */
.form-header {
    margin-bottom: 40px;
}

.form-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.form-input:focus {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-input::placeholder {
    color: var(--text-placeholder);
}

/* 错误状态 */
.form-input.error {
    border-color: var(--error-color);
    background: #fff2f0;
}

.form-error {
    font-size: 12px;
    color: var(--error-color);
    margin-top: 6px;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 24px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.btn-primary {
    width: 100%;
    color: #ffffff;
    background: var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-primary:disabled {
    background: #ffb399;
    cursor: not-allowed;
}

/* ==================== 其他元素 ==================== */
.form-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-footer a {
    font-weight: 500;
}

/* 消息提示 */
.message {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 14px;
}

.message-success {
    background: #f6ffed;
    border: 1px solid #b7eb8f;
    color: var(--success-color);
}

.message-error {
    background: #fff2f0;
    border: 1px solid #ffccc7;
    color: var(--error-color);
}

/* ==================== 响应式适配 ==================== */
@media screen and (max-width: 960px) {
    .login-brand {
        display: none;
    }
    
    .login-form-wrapper {
        width: 100%;
        max-width: 480px;
        margin: 0 auto;
    }
}

@media screen and (max-width: 480px) {
    .login-form-wrapper {
        padding: 40px 24px;
    }
    
    .form-title {
        font-size: 24px;
    }
}