/* 登录页面样式 */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-box {
    background: #fff;
    border-radius: 25px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 5px solid #fff;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #667eea;
    font-size: 1.8em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.login-subtitle {
    color: #888;
    font-size: 1em;
}

/* 切换标签 */
.login-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
}

.login-tab {
    flex: 1;
    padding: 12px 20px;
    border: none;
    background: #f5f5f5;
    color: #666;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    border-radius: 10px 10px 0 0;
    transition: all 0.3s ease;
}

.login-tab:hover {
    background: #e8e8e8;
}

.login-tab.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

/* 表单样式 */
.login-form {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: bold;
    font-size: 0.95em;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 12px;
    font-size: 1em;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* 按钮样式 */
.login-btn,
.register-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.login-btn:hover,
.register-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.login-btn:active,
.register-btn:active {
    transform: translateY(0);
}

/* 消息提示 */
.login-message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    min-height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-message.error {
    background: #fee;
    color: #c00;
    border: 1px solid #fcc;
}

.login-message.success {
    background: #efe;
    color: #0a0;
    border: 1px solid #cfc;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }

    .login-header h1 {
        font-size: 1.4em;
    }

    .login-subtitle {
        font-size: 0.9em;
    }

    .login-tab {
        padding: 10px 15px;
        font-size: 0.9em;
    }

    .form-group input {
        padding: 12px 14px;
    }

    .login-btn,
    .register-btn {
        padding: 12px;
        font-size: 1em;
    }
}